On a quiet cove in Southern Maryland, a series of orange and white markers declares a stretch of water off limits to fishing. Under the surface sits spawning habitat for largemouth bass, a fish that contributes millions of dollars to the region’s economy each year and for whom two such sanctuaries have been established in the state. Here, the fish are protected from recreational anglers each spring and studied by scientists hoping to learn more about them and their habitat needs.
The largemouth bass can be found across the watershed and is considered one of the most popular sport fishes in the United States. While regional populations are strong, a changing Chesapeake Bay—think rising water temperatures, disappearing grasses and the continued arrival of invasive species—is changing bass habitat and could have an effect on future fish.
For decades, scientists with the Maryland Department of Natural Resources (DNR) have collected data on the distribution of largemouth bass, tracking the species and monitoring the state’s two sanctuaries in order to gather the knowledge needed to keep the fishery sustainable. Established in 2010 on the Chicamuxen and Nanjemoy creeks, both of which flow into the Potomac River, these sanctuaries have been fortified with plastic pipes meant to serve as spawning structures. And, it seems, these sanctuaries are in high demand during spawning season.
On an overcast day in April, three members of the DNR Tidal Bass Survey team—Joseph Love, Tim Groves and Branson Williams—are surveying the sanctuary in Chicamuxen Creek. Groves flips a switch and the vessel starts to send electrical currents into the water, stunning fish for capture by the scientists on board. The previous day, the team caught, tagged and released 20 bass; this morning, the men catch 19, none of which were tagged the day before.
“This [lack of recaptures] indicates that we have quite a few bass out here,” said Love, Tidal Bass Manager.
Indeed, the state’s largemouth bass fishery “is pretty doggone good,” Love continued. “That said, we recognize that the ecosystem is changing. And I don’t think anybody wants to rest on the laurels of a great fishery.”
As Love and his team learn how largemouth bass are using the state’s sanctuaries, they can work to improve the sanctuaries’ function and move to protect them and similar habitats from further development or disturbance.
“We can speculate where the best coves are, but this is the ground truthing that we need to do,” Love said.
In the fall, the team will return to the cove to count juvenile bass and report on juvenile-to-adult population ratios. While the assessment of the state’s sanctuaries is a small-scale project, it is one “aimed at the bigger picture,” Love said.
Love’s team is “doing what we can to improve the use of these coves by bass.” And protecting bass habitat and improving water quality will have a positive effect on the coves overall, creating healthier systems for neighboring plants and animals.
“By protecting these important areas, we are also protecting the larger ecosystem,” Love said.
Photos by Jenna Valente. To view more, visit our Flickr set.
Tumor rates among catfish in the Anacostia River are down, according to a new report from the U.S. Fish and Wildlife Service (USFWS).
Biologists with the agency’s Chesapeake Bay Field Office have studied the brown bullhead catfish for decades as an indicator of habitat status and the success of cleanup efforts. The bottom-dwelling fish is sensitive to contaminants that accumulate in the mud in which it finds its food, often developing liver and skin tumors after exposure to cancer-causing chemicals.
Image courtesy USDA/Wikimedia Commons
Brown bullheads in the Anacostia River once had the highest rates of liver tumors in North America, but recent USFWS surveys show that tumors in the fish have dropped. While the rate is still higher than the Bay-wide average, this improvement could indicate that exposure to chemical contaminants is on the decline.
Liver tumors in fish are caused by exposure to sediment that is contaminated with polynuclear aromatic hydrocarbons, or PAHs. PAHs can be found in coal, oil and gasoline, and enter rivers and streams from stormwater runoff, waste sites and the atmosphere.
The U.S. Environmental Protection Agency (EPA) and the District Department of the Environment (DDOE) have coordinated a number of recent cleanup efforts to lower PAH contamination in the watershed, from improved stormwater management and more frequent street sweeping to the targeted inspection of local automobile repair shops to lower loadings of oil and grease.
Read more about Tumors in Brown Bullhead Catfish in the Anacostia and Potomac Rivers.
When cold weather arrives, blue crabs up and down the Chesapeake Bay stop their scurrying. The summertime rush of food-hunting and mate-finding is over, and the crustaceans will spend the winter months buried in sand and sediment. It is at this moment that researchers in Maryland and Virginia must strike: to count the crabs while they are still.
Known as the winter dredge survey, this annual count of the Bay’s blue crab population is a critical part of blue crab management. Without an accurate estimate of blue crab abundance, fisheries managers cannot set harvest limits for the season ahead.
“The winter dredge survey is the most vital tool that we have in crab management,” said Chris Walstrum, a natural resources biologist with the Maryland Department of Natural Resources (DNR). “This is the best chance we have to assess the [blue crab] population, because the crabs are stationary.”
Walstrum and his team are responsible for counting crabs in Maryland waters; the Virginia Institute of Marine Science (VIMS) conducts the winter dredge survey in the Virginia portion of the Bay. Between the two agencies, a total of 1,500 Bay sites are visited over the course of three and a half months before the numbers are crunched and fisheries managers can make recommendations on how blue crab harvests should or shouldn’t change.
On a warmer-than-normal January morning, Walstrum is aboard a boat in Broad Creek, a tributary of the Choptank River on Maryland’s Eastern Shore. The DNR vessel has been captained for more than a decade by Roger Morris, a fifth-generation waterman who used to dredge for crabs commercially and whose skills are invaluable to the success of the survey.
“Whether people like it or not, the winter dredge survey is the whole basis for our [blue crab harvest] limits,” Morris said. “That’s why I try to do the best I can do at it. It takes experience. You just can’t walk on a crab dredge boat and expect to catch crabs.”
At each survey site—six of them in this particular waterway—Morris will line up his boat and drop its so-called Virginia crab dredge into the water. The metal dredge is towed along the bottom for one minute before it is hoisted back on board, where the newly caught contents of its mesh liner are dumped out and sorted through. In each catch, there are brown leaves, oyster shells, little fish and, more often than not, a collection of blue crabs.
Each crab is weighed, measured and sexed before it is tossed back into the water. This provides an accurate picture of the blue crab population, as researchers track the number of young crabs that will form the backbone of the fishery next fall and the number of females that will produce the next generation of blue crab stock.
“The winter dredge survey provides us with a cornerstone piece of data from which to operate our [blue crab] management,” said Brenda Davis, chief of the DNR Blue Crab Program.
“It’s a long-running survey, and it’s been consistently accurate,” Davis said. “It gives us a good, static picture of the number of crabs in the Bay.”
Video produced by Steve Droter.
The blue crab population in the Chesapeake Bay has dropped, but a substantial boost in the number of spawning-age females has offered officials a piece of good news in spite of this disappointing decline.
According to the results of the annual winter dredge survey, which measures the blue crab population in Maryland and Virginia, the number of spawning-age females in the Bay has risen 52 percent. The Chesapeake Bay Program tracks this number as an indicator of Bay health, and an increase is a sign that management methods to conserve adult female crabs are working. But an overall decline in the Bay’s blue crabs—from 765 million in 2012 to 300 million in 2013—could lead to the tightening of commercial harvest restrictions.
Image courtesy Benjamin Wilson/Flickr
Scientists have attributed the decline in blue crabs not to overfishing, but to high mortality rates among juveniles. While last year’s winter dredge survey measured an unprecedented number of juvenile crabs in the Bay, last summer and fall saw an alarming loss of blue crab habitat and a large influx of red drum, which often feed on young crabs. Young blue crabs are also known to feed on each other when population densities are high.
“It is important to keep these results in perspective,” said Jack Travelstead, commissioner of the Virginia Marine Resources Commission (VMRC), in a news release. “Five years ago this fishery was declared a federal disaster. That is no longer the case: overfishing is no longer occurring, a good fisheries management framework is in place, the stock is healthy and spawning-age females are doing well. If not for the disappointingly small reproductive year class we would have much to celebrate.”
In an effort to make up for this shift in blue crab abundance, Maryland, Virginia and the Potomac River Fisheries Commission (PRFC) are pursuing strategies to establish a 10 percent cut in the commercial harvest of female blue crabs. Both Maryland and the PRFC will consider adjusting or enacting daily bushel limits, which have been put in place in Virginia. Maryland and Virginia will also consider shortening their crab seasons, and it seems likely that Virginia’s winter dredge fishery will remain closed.
The Chesapeake Bay Stock Assessment Committee (CBSAC) will draft their 2013 Blue Crab Advisory Report over the next few weeks.
Read more about the 2013 winter dredge survey results.
According to the results of a survey conducted by the Maryland Department of Natural Resources (DNR), oyster abundance has increased in state waters for the second consecutive year and more of the bivalves are withstanding pressures from pollution and disease.
The 2012 Fall Oyster Survey, which has monitored the status of the state’s oyster population since 1939, found a 93 percent oyster survival rate—the highest since 1985—and a lower-than-average prevalence of MSX and dermo, two diseases that have decimated the Chesapeake Bay’s native oysters in recent decades.
In a news release, DNR Fisheries Service Director Tom O’Connell attributed these successes to the establishment of oyster sanctuaries, which are closed to harvest and which could allow oysters to build up a natural disease resistance.
Maryland is currently restoring oyster reefs in the Harris Creek and Little Choptank River sanctuaries, as part of a federally mandated effort to restore oyster populations in 20 Bay tributaries by 2025.
Read more about the 2012 Fall Oyster Survey results.
More than half of the nation’s river and stream miles are in poor health, according to a new study from the U.S. Environmental Protection Agency (EPA).
The latest National Rivers and Streams Assessment, a sampling effort conducted during the summers of 2008 and 2009, found that 55 percent of the nation’s rivers and streams are in poor condition and 23 percent are in fair condition, their health impaired by nutrient pollution, a loss of streamside vegetation and bacterial and chemical contaminants.
These same stressors have impacted the Chesapeake Bay and its tidal waters. Excess nutrients can fuel the growth of algae blooms that suck oxygen from the water, creating “dead zones” within which animals cannot survive. A loss of streamside vegetation can boost erosion and push sand, soil and sediment into waterways, blocking sunlight from reaching underwater grasses and smothering the habitat that some aquatic organisms need to live or breed. And chemical contaminants—like, for instance, mercury—can accumulate in the tissues of fish, leading to fish consumption advisories in polluted waterways.
But rivers and streams are critical to the health of humans and wildlife alike, as sources of drinking water, food and habitat. According to the EPA, this survey suggests the need to better address pollution at its source, whether it is urban, suburban or agricultural runoff or the treatment of wastewater.
The federal agencies leading the watershed-wide effort to restore the Chesapeake Bay have released a progress report highlighting the work that was completed last year.
Federal agencies and state and local partners have added 20 new monitoring stations to the Bay and its tributaries, expanding their ability to track changes in water quality and pollution. They have established conservation practices across Bay farms and forests, installing streamside fencing to keep livestock out of waterways and planting cover crops to reduce the need for nutrient-laden fertilizers. And they have planted close to 100 acres of oyster reefs in a Maryland tributary and opened more than 30 miles of Virginia and Pennsylvania streams to eels, shad and other diadromous fish, restoring habitat for some of the watershed’s most critical critters.
But much remains to be done, and the Federal Leadership Committee for the Chesapeake Bay has outlined future work in a 2013 action plan.
“EPA and our other federal partners are pleased to report the tangible progress we’ve made over the past year, which will inform, guide and accelerate our collective actions going forward,” said EPA’s Nick DiPasquale, Chesapeake Bay Program Director. “The federal agencies and our partner jurisdictions are accountable to the citizens living near the local rivers and streams that also stand to benefit from this critical restoration work. Through our commitments, the prospects for increased momentum and improvements to the Bay’s health should be encouraging to everyone.
This winter saw an increase in waterfowl along Maryland’s Chesapeake Bay shoreline and Atlantic coast.
While pilots and biologists from the U.S. Fish and Wildlife Service (USFWS) and Maryland Department of Natural Resources (DNR) counted fewer diving and dabbling ducks this winter than they did in the 2012 Midwinter Waterfowl Survey, these same crews counted more geese.
According to a DNR news release, both Canada geese and snow geese were “noticeably more abundant during this year’s survey,” with crews counting 462,000 Canada geese—a three-year high—and 83,300 snow geese—a five-year high. Biologists have attributed the boost in goose numbers to two factors: last spring’s successful nesting season and December snow cover in New York and southern Canada, which encouraged geese to migrate into the Bay region right before the survey was taken.
While more geese could mean more damage to area farms—as the birds forage on green cover crops and grain crops—most farmers “have learned to deal with the problem,” said Larry Hindman, wildlife biologist and Waterfowl Project Leader with DNR. Fluttering plastic flags, bald eagle effigies placed in the middle of fields and the loud bang of a rifle or shotgun have all proven effective at deterring persistent geese, Hindman said, and those farmers who need extra help can find assistance and advice in the U.S. Department of Agriculture’s Wildlife Damage Management program.
Resident Canada geese can pose a problem for rural, suburban and urban residents alike, and are considered overabundant in the region. While the birds do provide hunters with a chance for recreation, resident geese can overgraze wetlands and lawns and leave their droppings to pollute local rivers and streams. While the Midwinter Waterfowl Survey does not make a distinction between resident and migratory geese—as both stocks look the same during an aerial survey—DNR researchers do monitor the resident population using leg bands recovered from hunters.
The Midwinter Waterfowl Survey is used as an index of long-term wintering waterfowl trends. The estimates measure waterfowl populations along the Atlantic Flyway, which is a bird migration route that follows North America’s Atlantic Coast and Appalachian Mountains.
Read the full waterfowl survey results on the DNR website.
Chemical contaminants continue to afflict the Chesapeake Bay watershed, raising concern over water quality and the health of fish, wildlife and watershed residents.
Close to three-quarters of the Bay’s tidal waters are considered impaired by chemical contaminants, from the pesticides applied to farmland and lawns to repel weeds and insects to the household and personal-care products that enter the environment through our landfills and wastewater. But so-called “PCBs” and mercury are particularly problematic in the region, according to a report released last week by the U.S. Environmental Protection Agency (EPA), U.S. Geological Survey (USGS) and U.S. Fish and Wildlife Service (USFWS).
Both PCBs—short for “polychlorinated biphenyls”—and mercury are considered “widespread” in extent and severity, concentrating in sediment and in fish tissue and leading to fish-consumption advisories in a number of rivers and streams.
The District of Columbia, for instance, has issued such advisories for all of its water bodies, asking the public not to consume catfish, carp or eels, which are bottom-feeding fish that can accumulate chemicals in their bodies. While the District’s Anacostia and Potomac rivers raise the greatest concern in the watershed when it comes to fish tissue contamination, a November report confirmed that many Anacostia anglers are sharing and consuming potentially contaminated fish, sparking interest in reshaping public outreach to better address clean water, food security and human health in the area.
While PCBs have not been produced in the United States since a 1977 ban, the chemicals continue to enter the environment through accidental leaks, improper disposal and “legacy deposits”; mercury can find its way into the atmosphere through coal combustion, waste incineration and metal processing.
Exposure to both of these contaminants can affect the survival, growth and reproduction of fish and wildlife.
The Chesapeake Bay Program will use this report to consider whether reducing the input of toxic contaminants to the Bay should be one of its new goals.
The federal agencies leading the watershed-wide endeavor to restore the Chesapeake Bay have outlined next year’s cleanup and restoration efforts in a 2013 action plan.
The work that the Federal Leadership Committee for the Chesapeake Bay has set out for fiscal year 2013 will build on established projects and begin new initiatives to restore clean water, recover habitat, sustain fish and wildlife, and boost land conservation and public access across the watershed. Supporting efforts will also expand citizen stewardship, respond to climate change and strengthen science.
The 2013 action plan includes a list of tangible efforts that federal agencies and state and local partners have pledged to undertake, from monitoring the return of migratory fish to streams in which passage barriers have been removed to helping landowners implement conservation practices on farms and in forests.
The action plan is meant to meet the goals set forth in the federal Strategy for Protecting and Restoring the Bay, which in 2009 called for the restoration and protection of the watershed. Close to half a billion dollars has been requested for the work outlined in the plan; the plan will be followed this spring with a progress report.
The federal agencies leading the watershed-wide endeavor to restore the Chesapeake Bay are seeking feedback on a draft action plan that outlines next year’s cleanup efforts.
From increasing public access to the Bay and its rivers to boosting conservation practices on farms and private lands, the action plan is meant to meet the goals set forth in the federal Strategy for Protecting and Restoring the Bay, which in 2009 called for the restoration and protection of the watershed.
Some of the proposed restoration plans are extensions of established projects, while others are new initiatives.
The action plan is open for public comment through November 27. Comments can be submitted through an online feedback form.
A paddler, a swimmer or a hiker itching to cool his tired toes can stand at the edge of a stream and judge the water. Is it clear? Is it clean? Are there critters at hand? But he won’t find an answer to his most basic question: How healthy is my waterway?
Enter the U.S. Environmental Protection Agency (EPA).
In celebration of the Clean Water Act, the EPA has launched a new website to help users learn more about the health of their local rivers, streams and lakes.
Using information gathered from state water quality monitoring reports, the smart phone and tablet-friendly site reveals where pollution has been reported and what is being done to reduce it.
Users can engage a smart phone’s GPS to list waters within a five-mile radius or enter a zip code or place name into a search box to check on locations throughout the United States.
A few quick searches for rivers and streams in the Chesapeake Bay watershed show polluted and unpolluted waters. Happy Creek in Front Royal, Va., was deemed polluted in 2008, harboring disease-causing bacteria and other microbes. But West Virginia’s Seneca Creek was assessed as unpolluted in 2010. Other waters remain “unassessed” or untested due to shortages in staff and funding.
The website’s simple descriptions and ultra-local perspective are meant to make science more accessible, understandable and relevant.
Learn more about How’s My Waterway.
Striped bass spawning success is at an all-time low in the Chesapeake Bay.
Image courtesy Eddie Welker/Flickr
To track striped bass reproduction rates, biologists take a series of summer seine net samples at more than 20 sites in four striped bass spawning areas. This year, the average number of juvenile striped bass caught in each sample was 0.9. Last year’s juvenile striped bass index was 34.58; the long-term average is 12.
Biologists have blamed unfavorable weather for the decline.
“Generally, warm winters and dry springs are unfavorable conditions for fish that return to freshwater to spawn,” said DNR Striped Bass Survey Project Leader Eric Durrell. Like the striped bass, white perch, river herring and other anadromous fish also experienced low reproductive success this year.
But biologists “do not view this low value as an imminent problem,” said DNR Fisheries Director Tom O’Connell. “Three consecutive years of poor reproduction would be necessary to trigger mandatory conservation measures.”
According to the 2011 Striped Bass Stock Assessment released by the Atlantic States Marine Fisheries Commission, striped bass along the Atlantic coast are not overfished and overfishing is not occurring.
Restoration partners in Maryland have put more than 600 million oyster spat into the Chesapeake Bay in the largest targeted restoration effort the watershed has ever seen.
While habitat loss, disease and historic over-harvesting have contributed to a dramatic decline in native oyster populations, the peculiar bivalves that filter water, form aquatic reefs and feed countless watershed residents are critical to the Bay’s environment and economy.
According to a report from the Oyster Recovery Partnership, a portion of the 634 million oyster larvae that partners planted in 2012 went into the Upper Bay, where last year an influx of fresh water from spring rains and late-summer storms led to widespread oyster death.
But most of the “spat on shell”—or young oysters “set” onto large oyster shells—went into Harris Creek, a tributary of the Choptank River that was declared an oyster sanctuary in 2010. There, partners hope to restore 360 acres of oyster reef, constructing new reefs and seeding this habitat with spat; close to one-third of this goal has been planted so far.
To fuel restoration efforts, the Horn Point Laboratory Oyster Hatchery produced a record-breaking 880 million spat in 2012, marking the fifth year in a row that spat production has exceeded half a billion. The largest hatchery on the (east coast), the Cambridge, Md., lab produces disease-free oyster larvae for use in research, restoration, education and aquaculture.
Horn Point Laboratory will host an open house on Saturday, October 13.
The University of Maryland has received close to $700,000 in federal funding to help communities reduce stormwater runoff.
Using a software program to pinpoint pollution hot spots and an innovative brand of social marketing to boost citizen engagement, the university will embark on a multi-year project to increase the adoption of conservation practices in two watershed communities: the Wilde Lake watershed in Howard County, Md., and the Watts Branch watershed in Washington, D.C., whose waters flow into the Patuxent and Anacostia rivers, respectively.
Stormwater runoff, or rainfall that picks up pollutants as it flows across paved roads, parking lots, lawns and golf courses, is the fastest growing source of pollution into the Chesapeake Bay. Best management practices can reduce the flow of stormwater into creeks, streams and rivers, from the green roofs that trap and filter stormwater to the permeable pavement that allows stormwater to trickle underground rather than rush into storm drains.
But best management practices cannot work without the citizens who put them into action.
"We need to work with communities, rather than take a top-down approach [to stormwater management]," said project lead and assistant professor Paul Leisnham. "For the long-term successful implementation of these practices ... we need communities to be involved."
The university has partnered with local schools, religious organizations and grassroots associations (among them the Maryland Sea Grant, the Anacostia Watershed Society and Groundwork Anacostia) in hopes of breaking down barriers to the adoption of best management practices and increasing community involvement—and thus, investment—in local, long-term environmental conservation.
From left, U.S. Senator Ben Cardin, University of Maryland assistant professor Paul Leisnham and U.S. EPA Region 3 Administrator Shawn M. Garvin
U.S. Senator Ben Cardin commended the project at a Bladensburg Waterfront Park event as a creative and results-driven way to reduce stormwater runoff.
"It's going to allow us to make a difference in our [local] watershed, which will make a difference in the Chesapeake Bay," Cardin said.
The funding, which totaled $691,674, was awarded through the Sustainable Chesapeake Grant program administered by the U.S. Environmental Protection Agency.
Farmers in the Chesapeake Bay watershed might soon have an easier time putting pollution credits on the market.
The U.S. Department of Agriculture (USDA) has awarded $2.5 million to five Bay organizations to improve the infrastructure behind water quality trading markets, which allow buyers to purchase "pollution credits" for reductions or cuts in pollution that landowners have made on their properties.
From better determining demand for credit to improving outreach to hundreds of eligible farmers, the planned improvements aim to benefit both the land and those who work it. A farmer who uses conservation practices to reduce his runoff of nutrients or sediment, for instance, can produce on-farm energy savings and water quality credits while improving the environmental health of his land.
Watershed recipients of Conservation Innovation Grants program funding include the Alliance for the Chesapeake Bay, the Chesapeake Bay Foundation, the Maryland Department of Agriculture, the Virginia Department of Conservation and Recreation and the Borough of Chambersburg, Pa.
The Conservation Innovation Grants program is administered by the Natural Resources Conservation Service (NRCS). This year, an additional $23.5 million has been awarded to more than 50 recipients across the nation for innovative and conservation-minded agricultural practices, from improving soil health to increasing on-farm pollinator habitat.
The U.S. Environmental Protection Agency has released its evaluations of the final Phase II Watershed Implementation Plans (WIPs) from Pennsylvania, West Virginia, Delaware, Maryland, Virginia and the District of Columbia. The evaluations are available online at the EPA’s Chesapeake Bay TMDL website.
Each state and the District of Columbia developed its own cleanup plan, in collaboration with local governments and conservation districts. The plans outline steps each jurisdiction will take toward restoring the thousands of streams and rivers that make up the Chesapeake Bay watershed.
“The Phase II WIPs represent a transition from planning to implementing the necessary practices at the local level,” said EPA mid-Atlantic Regional Administrator Shawn M. Garvin.
Through the Chesapeake Bay Program partnership, state and federal officials have committed to having all of the needed pollution control measures in place to fully restore the Bay no later than 2025.
“The smallest ripples are often the largest fish,” Matt Sell tells me as he waves his fishing line back and forth over a dimple in the water. The scene may seem appropriate for a Saturday afternoon, but it’s actually a Wednesday morning, and Matt is at work as a brook trout specialist for the Maryland Department of Natural Resources’ (DNR) Inland Fisheries Division.
Clad in chest waders and a t-shirt, Matt is armed with a fishing pole and the instincts of someone who’s been angling most of his life. His fishing efforts are rewarded with a 6-inch brook trout – exactly the species he was looking to catch.
In most parts of the state, a brook trout would be a rare catch. More than 55 percent of Maryland’s sub-watersheds have lost their entire brook trout population, and only 2 percent of the state’s sub-watersheds have a healthy population.
Why the sudden and steep population decline? Brook trout have very specific habitat requirements that are threatened by development, urbanization and poor land management.
“Brook trout need cold, very clean water with no sediment,” explains Alan Heft, biologist with Maryland DNR’s Inland Fisheries Division. “They need specific sizes of gravel in certain areas of the stream to reproduce. If they don’t have these conditions, they can’t exist.”
When excess sediment erodes from stream banks and construction sites, dirt gets into the gravel beds where brook trout spawn, hardening the bottom into a concrete-like material. And when water temperatures rise above 68 degrees due to factors such as hot summers and lack of a tree canopy along the edge of a stream, a brook trout’s internal system shuts down.
“Brook trout are kind of like the canary in the coal mine,” Alan says. “When you have a large brook trout population, you know that you have good water, clean water and a protected watershed. When you lose the brook trout, you know that you have problems.”
Because brook trout have such steep habitat requirements, they are used as an indicator species: their presence indicates whether or not a watershed is healthy. By closely monitoring brook trout populations, scientists can learn not just about the fish, but about water quality in a river system.
But monitoring brook trout requires more than just fishing. Although there are many methods used to monitor the fish, Matt and Alan have chosen radio tags, which they insert into each fish’s skin through a quick, painless surgery. The radio tags allow Matt, Alan and other scientists to follow the movements of brook trout for the next year or so.
When I follow Matt and Alan on their Wednesday morning fishing excursion, they bring me to a dense forest of eastern hemlocks. Mountain laurels hug the shallow stream banks, blocking the sun and forming a blanket of shade over the river. With the lush layers of forest, the serenity of fishing and the absence of human influence, it feels as though we’ve traveled back in time. But we’re actually on western Maryland’s Savage River, a 30-mile-long tributary of the Potomac River and the largest remaining native brook trout habitat in the mid-Atlantic.
Although brook trout have been eliminated from the majority of Maryland’s waterways, these fish have remained in the Savage River for a few reasons. With just 1,500 residents, the Savage River watershed has not been subjected to the fast-paced development taking place in other parts of the Chesapeake Bay region. About 80 percent of the watershed is state-owned, meaning that the vast majority of the land around the river is safeguarded from development and managed to enhance water quality and brook trout habitat. (Plus, who wouldn’t want to live in a traffic-free, forested oasis in the Appalachian mountains?)
“Typically with brook trout habitat in the east, outside of Maine and a few places in New York, all of the tributaries are disconnected. There’s damage or dams or pollution, and they can’t go from one spot to another,” Alan explains. “But these fish can go up to 30 miles in one direction. They can go up Poplar Lick six miles; they can go down to the reservoir. It’s incredibly unique and there’s hardly anything like this left. It’s our gem.”
Sure, there’s plenty of room for the fish to travel, but Alan, Matt and others with the Eastern Brook Trout Venture want to know exactly where the Savage River’s brook trout swim throughout the seasons. “In order to answer our questions, we implemented this radio tagging study last year,” Matt tells me. “Last year, we had one fish move about three miles overnight. I had one fish that moved about four miles from where it was tagged.”
These sudden movements tell Matt and Alan that some factor encouraged the fish to move far – and fast. “It seems the impetus for these fish to leave the river in the summer months was an increase in water temperature,” Matt says. “In the winter months, they move back.”
By identifying the fish’s preferred habitats, biologists will be able to manage the land to imitate these favored spots, which will help keep the river’s brook trout population healthy.
The large-scale decline of brook trout is not due to overfishing. However, harvesting these fish certainly won’t help rebuild populations. That’s why Maryland DNR decided to create a special regulation for brook trout harvesting in sections of the Savage River watershed.
“You can fish for brook trout with an artificial lure only, and you can’t keep them,” Alan says. “The result so far has been phenomenal, for both the population and for the quality of the fishing.”
(Image courtesy Jon David Nelson/Flickr)
It may be difficult to understand how Matt and Alan’s brook trout restoration efforts in the Savage River – 200 miles from the shores of the Chesapeake Bay – are connected to the Bay’s health. After all, western Maryland is a far cry from the crabs, oysters and sailboats associated with the nation’s largest estuary.
“Water rolls downhill,” Matt says simply. “It has since the beginning of time and it will continue to do so. If we can protect the water quality here, as it continues to move downstream, it has a better chance as it flows on towards the bay.”
So the restoration efforts Matt, Alan and other brook trout scientists dedicate their careers to aren’t so far removed from the Chesapeake after all. “These streams out here 200 miles from the Bay are vital,” Alan says. “When you add up all the water in these small headwater streams, it’s an amazing amount of water.”
The Chesapeake Bay’s blue crab population increased 66 percent in 2012 to its highest level since 1993, according to the annual blue crab winter dredge survey conducted by Maryland and Virginia.
The enormous increase was fueled by a “baby boom” – an almost tripling of the juvenile crab population, from 207 million last year to 587 million. This figure smashed the old record of 512 million juvenile crabs set in 1993.
Overall, the Bay’s crab population has risen to 764 million, more than triple the record low of 249 million set in 2007. That deep decline set in motion four years of concentrated efforts to rebuild the stock.
“Just a few short years ago, the future did not look bright for our blue crab population,” said Maryland Gov. Martin O’Malley. “Our female crabs were being overfished, and our fishery was at risk of complete collapse. We teamed up with our neighbors in Virginia and at the Potomac River Fisheries Commission to make the tough choices, guided by science, to reverse that population decline.”
Bay-wide, the crab harvest has increased substantially since 2008, when 43 million pounds were caught. In 2011, an estimated 67.3 million pounds of crabs were harvested from the Bay.
Not all news from the survey was bright: the number of spawning-age females dropped by roughly 50 percent to 97 million. However, this figure is still above the health threshold. Maryland and Virginia will work together to produce a management strategy to avert another stock decline for this segment of the crab population.
Visit the Maryland Department of Natural Resources’ website for more information about the winter dredge survey and the 2012 blue crab figures.
Six of the seven Chesapeake Bay jurisdictions – Delaware, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia – have submitted their final cleanup plans as part of the Chesapeake Bay TMDL, a “pollution diet” that aims to put in place all restoration measures needed for a clean Bay by 2025.
The final cleanup plans, officially known as Phase 2 Watershed Implementation Plans (WIPs), were submitted to the U.S. Environmental Protection Agency last Friday. New York submitted its draft plan, and is working with the EPA to finalize that plan.
The cleanup plans were developed by each individual state and the District, working closely with counties, municipalities and other local partners. The cleanup plans identify specific restoration measures each jurisdiction will take to reduce nitrogen, phosphorus and sediment pollution to the Bay and its local rivers.
According to the guidelines set in the TMDL, at least 60 percent of necessary pollution reductions must be achieved by 2017. Chesapeake Bay Program partners have committed to putting all needed pollution control measures in place no later than 2025.
Visit the EPA’s Chesapeake Bay TMDL website to review and learn more about the cleanup plans.
Seven federal agencies involved in Chesapeake Bay restoration have released a progress report and action plan that detail achievements and initiatives toward the goals outlined in the federal Strategy for Protecting and Restoring the Chesapeake Bay.
The federal government releases a progress report and action plan each year as part of the strategy, which was developed in response to President Obama’s May 2009 Chesapeake Bay Executive Order.
The fiscal year 2011 progress report details the steps federal agencies took toward achieving strategy goals. Although much of the year focused on setting a “road map” for the future, federal agencies also collaborated to eliminate duplication of efforts, enable best use of resources, and bring each agency’s unique skills to restoration projects.
The fiscal year 2012 action plan includes a list of tangible efforts federal agencies will tackle to improve the Bay’s health. Some of these initiatives are continuations of projects stared the previous year, whereas others are new initiatives that build on the past.
The seven federal agencies included in these reports are the Environmental Protection Agency and the departments of Agriculture, Commerce, Defense, Homeland Security, Interior and Transportation.
Visit the Chesapeake Bay Executive Order website to read the progress report and action plan.
Fewer acres of bay grasses grew in the shallows of the Chesapeake Bay and its tidal rivers in 2011, according to scientists with the Chesapeake Bay Program. Bay grass acreage fell to an estimated 63,074 acres in 2011, down from 79,664 acres in 2010. This is the lowest Bay-wide acreage measured since 2006.
Because of heavy rainstorms that led to cloudy, muddy conditions that blocked monitoring efforts, only 57,956 acres of bay grasses were actually mapped in 2011. However, scientists believe about 5,119 acres of bay grasses may have been present during the height of the growing season, leading to the final estimated Bay-wide figure of 63,074 acres.
Bay grasses – also known as submerged aquatic vegetation or SAV – are a critical part of the Bay ecosystem. These underwater meadows provide fish, crabs and other aquatic life with food and habitat, absorb nutrients, trap sediment, reduce erosion, and add oxygen to the water. Bay grasses are also an excellent measure of the Bay's overall condition because their health is closely linked with the Bay’s health.
“2011 was the year that bucked two trends we’ve seen over the last decade,” said Lee Karrh, chair of the Bay Program’s Submerged Aquatic Vegetation (SAV) Workgroup. “The Upper Bay had major decreases after years of increasing or sustained high acreages. On the other hand, the brackish parts of the Middle Bay witnessed dramatic increases in 2011, after prolonged decreases since the turn of the century.”
Experts agree that extreme weather conditions in 2010 and 2011 led to the substantial decrease in bay grasses. According to Bob Orth, scientist with the Virginia Institute of Marine Science (VIMS) and coordinator of the annual bay grass survey:
In the upper Bay (from the mouth of the Susquehanna River to the Chesapeake Bay Bridge), bay grasses covered approximately 13,287 acres, down from 21,353 acres in 2010. This is most likely an underestimate because scientists did not monitor the area until November, once muddy conditions improved but well past the end of the growing season. One bright spot in the upper Bay was the more than doubling of bay grass acreage in the Chester River and near Eastern Neck.
In the middle Bay (from the Bay Bridge to Pocomoke Sound and the Potomac River), bay grasses decreased 4 percent to an estimated 34,142 acres, down from 35,446 acres in 2010. (Only 29,023 acres were mapped, but scientists estimate that an additional 5,119 acres may have been present.) Large eelgrass losses were observed in Tangier Sound. These were offset by widgeon grass gains in many areas, including Eastern Bay and the Choptank River.
In the lower Bay (south of Pocomoke Sound and the Potomac River), bay grasses covered 15,645 acres, down 32 percent from 22,685 acres in 2010. Hot summer temperatures in 2010 led to this significant drop in acreage, which offset any gains that followed in 2011. Eelgrass in many parts of the lower Bay had been recovering from similar heat-related losses that took place in 2005.
Despite Bay-wide losses, there were a few bits of good news for bay grasses last year. The huge, dense bed on the Susquehanna Flats – which has increased threefold in size over the past 20 years – survived the late summer tropical storms, showing how resilient healthy bay grass beds can be to natural disturbances. Also, scientists recorded the first-ever bay grass bed in the mainstem James River since the area was first surveyed in 1998.
Annual bay grass acreage is estimated through an aerial survey, which is conducted from late spring to early autumn. Residents can do their part to help restore bay grasses by not fertilizing in the spring and planting more plants to reduce polluted runoff from backyards.
For detailed information about 2011 bay grasses acreage, including aerial photos and year-to-year comparisons, visit VIMS' SAV blog. For more information about the aerial survey and bay grass monitoring efforts, visit VIMS’ SAV website.
Virginia added approximately 840 miles of streams and 2 square miles of estuaries to its list of impaired waters in 2012, according to the state’s latest water quality report, released by the Virginia Department of Environmental Quality (DEQ). Virginia must develop more than 1,000 cleanup plans to restore the health of these and other polluted waterways.
About 260 miles of streams were removed from the list after achieving water quality standards, while another 230 stream miles were partially delisted.
In total, about 13,140 miles of streams and 2,130 square miles of estuaries are listed as “impaired,” which means they do not support aquatic life, fish and shellfish consumption, swimming, wildlife and/or public water supplies. Approximately 5,350 miles of streams and 140 square miles of estuaries are considered in good health.
Every two years, Virginia monitors about one-third of its watersheds on a rotating basis. The state completes a full monitoring cycle every six years. Since 2002, Virginia DEQ has assessed 98 percent of the state’s watersheds.
The full water quality report is available on Virginia DEQ’s website. The public is invited to comment on the report until April 27. Virginia DEQ will host a webinar summarizing the report’s results on April 9 from 10 to noon.
The U.S. Environmental Protection Agency (EPA) and the National Fish and Wildlife Foundation (NFWF) will provide $4 million in grants to local governments to help reduce pollution to the Chesapeake Bay and its rivers.
The Local Government Green Infrastructure Initiative will create grants of up to $750,000 to support local governments as they implement the Chesapeake Bay TMDL, a “pollution diet” that sets limits on the amount of harmful nutrients and sediment that can enter the Bay.
The grants will support the design and implementation of projects that use green infrastructure – such as road maintenance programs and flood plain management – to produce measureable improvements in the health of local waterways. Through the Chesapeake Bay Program’s Local Government Advisory Committee, local government representatives can share best practices and evolving strategies to achieve water quality goals.
The EPA will select localities that represent the diverse characteristics of local governments throughout the Bay’s 64,000-square-mile watershed, including rural counties, predominantly agricultural communities, rapidly growing suburban localities, small cities and major urban municipalities.
NFWF will administer the grants through its Chesapeake Bay Stewardship Fund. Since 2000, the fund has provided $68.9 million in grants for more than 700 projects throughout the Bay watershed.
For more information about this and other grant opportunities, visit NFWF’s website.
The number of ducks, geese and swans wintering along Maryland’s Chesapeake Bay and Atlantic shorelines was down slightly in 2012 compared to 2011, according to scientists with the Maryland Department of Natural Resources (DNR) and the U.S. Fish and Wildlife Service.
(Image courtesy Dominic Sherony/Flickr)
Survey teams counted 633,700 waterfowl this winter, as compared to 651,800 during the same time in 2011.
An unusually mild winter in the Mid-Atlantic region likely contributed to the lower population. Scientists counted fewer Canada geese, but more diving ducks, particularly scaup. Canvasback totals were the second lowest level ever recorded; however, more birds of this species were observed arriving after the survey was finished.
Maryland survey results are ultimately pooled with results from other states to measure the population and distribution of waterfowl up and down the Atlantic Flyway, according to Larry Hindman, DNR’s waterfowl project leader.
Visit DNR’s website for more information about the waterfowl survey, including a complete list of species and survey population figures.
Maryland farmers planted nearly 430,000 acres of cover crops in fall 2011 through the state’s Cover Crop Program, the largest planting in Maryland history, according to the Maryland Department of Agriculture (MDA). The 2011 figure exceeds Maryland’s 2013 Chesapeake Bay pollution reduction milestone for cover crop plantings by 21 percent.
Cover crops are widely considered one of the most cost-effective and environmentally sustainable ways to control soil erosion and reduce nutrient pollution to the Bay and its rivers in winter. Collectively, the 429,818 acres of cover crops planted in 2011 will prevent an estimated 2.58 million pounds of nitrogen (60 percent of Maryland’s total pollution reduction milestone goal) and 86,000 pounds of phosphorus from entering the state’s waterways.
Farmers plant cover crops such as rye, wheat and barley in the fall after summer crops are harvested. As they grow, cover crops recycle unused plant nutrients remaining in the soil, protect fields against wind and water erosion, and help improve the soil for next year’s crop.
To learn more about Maryland’s cover crop program, visit MDA’s website.
Delaware, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia are generally on track to meet pollution reduction goals for the Chesapeake Bay and its rivers by 2025, according to the U.S. Environmental Protection Agency’s (EPA) evaluations of the jurisdictions' cleanup plans.
The six Bay states and the District of Columbia recently submitted their Phase II Watershed Implementation Plans (WIPs) and their 2012-2013 pollution reduction milestones. These plans lay out how each jurisdiction will meet pollution reduction goals set by the EPA in the Chesapeake Bay TMDL.
Overall, the jurisdictions built considerably upon their Phase I plans, according to the EPA. The Phase II plans provide more specific cleanup strategies and detail restoration actions on a local level.
EPA evaluations and feedback on each jurisdiction’s cleanup plan are available on the Chesapeake Bay TMDL website. The EPA is still reviewing New York’s plan, which was submitted after the deadline.
The EPA will continue to work with the jurisdictions between now and March 30, when the final Phase II WIPs are due.
More of the Chesapeake Bay’s baby oysters appear to be surviving threats from pollution and disease, according to new data from the Maryland Department of Natural Resources (DNR). The 2011 Fall Oyster Survey shows a 92 percent survival rate, the highest figure since 1985.
“This is more than double the survival rate in 2002, when record disease levels killed off 58 percent of the population,” DNR Fisheries Service Director Tom O’Connell said. “The overall biomass index — which measures population health by volume — is also up 44 percent over last year. Not only did these baby oysters thrive under ideal growing conditions, this year we also found a new, high spatset in high-salinity areas such as the Tangier Sound.”
High flows from heavy rain storms last spring and late summer affected oysters above the Bay Bridge; however, that represents a relatively small part of the total oyster population. The lower salinities that resulted from higher freshwater flows actually proved beneficial to the majority of Maryland’s oysters because less-salty water keeps diseases at bay.
The survival rate is the percentage of oysters found alive in a sample. Sampling took place at 263 oyster bars in the Bay and its tributaries over two months last fall. Maryland’s oyster survey is one of the longest running resource monitoring programs in the world; the state has been keeping track of oyster population survival, reproduction and disease levels since 1939.
In another positive bit of news, scientists at the Cooperative Oxford Laboratory report that the frequency and intensity of the oyster diseases MSX and Dermo are low. Both of these once-devastating diseases now occur at the lowest levels on record.
For more information about the oyster survey, visit Maryland DNR’s website.
The Chesapeake Bay Trust, the U.S. Environmental Protection Agency (EPA) and the state of Maryland will award more than $400,000 to cities and towns throughout the Chesapeake Bay watershed through the newly expanded Green Streets, Green Jobs, Green Towns grant initiative.
The Green Streets grants will help communities that want to accelerate greening efforts to improve livability, economic vitality, and protection of local waterways and natural areas. Projects selected will improve watershed protection and stormwater management through low-impact development practices, renewable energy use and green job creation.
“Green streets and green infrastructure are investments that create jobs and save money while also providing multiple environmental and quality of life benefits,” EPA Regional Administrator Shawn Garvin said.
Grant assistance of up to $35,000 is available for infrastructure project planning and design. Grants of up to $100,000 will be awarded for implementation and construction.
Last year, 10 cities and towns in Maryland were awarded grants to fund the planning and design of green infrastructure projects. This year, the program is providing double the overall funding.
The Green Streets grant program is open to local governments and non-profit organizations in urban and suburban areas throughout the Chesapeake Bay watershed, including Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia and the District of Columbia.
For more information about the Green Streets, Green Jobs, Green Towns grant program, visit the Chesapeake Bay Trust’s website. The deadline to submit proposals is March 9, 2012.
As the sun rises, bald eagles swoop from tree to ground; Canada geese honk happily in a nearby field; and a crew of scientists, boaters and trappers begin a day’s work at Blackwater National Wildlife Refuge in Cambridge, Maryland. The mission? To keep the marshes that fringe the shoreline along this part of the Chesapeake Bay from disappearing.
Although wetland degradation can be attributed to a variety of factors, the field crew at Blackwater is focusing their efforts on one cause they believe can be easily controlled: an invasive rodent called nutria. Native to South America, nutria were introduced to the United States in the early 20th century for their fur, which was thought to be valuable at the time. These 20-pound animals with the build of a beaver and the tail of muskrat may seem harmless, but their effect on marshes across the United States has been devastating.
An overindulgent diet of wetland plants, a lack of natural predators and ridiculously high reproduction rates are characteristics that have led nutria to be labeled as an “invasive species.” Simply put, this means they aren’t originally from here, and they harm the Chesapeake Bay ecosystem.
Nutria eat 25 percent of their body weight in marsh plants per day. Let’s put that into perspective: if you’re a 120-pound woman, you’d have to eat 30 pounds of plants each day to eat like a nutria. And since marsh plants don’t weigh all that much, you’d find yourself eating a lot of vegetation.
To make matters worse, nutria tear up the roots of marsh plants when they eat, making it impossible for new plants to grow. As a result, large areas of marshland erode away to open water.
“One property owner on Island Pond had a 300-acre marsh property. Now there’s about 30 acres left,” describes Stephen Kendrot, who works on the Nutria Eradication Project for the U.S. Department of Agriculture’s Animal and Plant Health Inspection Services (APHIS).
Aerial photographs of Blackwater depict a similar scenario. The refuge has lost 50 percent of its wetlands since nutria were introduced in the 1940s. The photos below depict Blackwater in 1939 (left) and 1989 (right.)
Certainly, this loss is a tragedy for Eastern Shore landowners. And while residents may be disappointed that they can’t look out at a beautiful marsh view or help their children find frogs in their backyard wetland, loss of marshland also results in irreversible ecological consequences.
Marsh plants are incredibly beneficial to the environment because they:
In the early 1990s, U.S. Fish and Wildlife staff fenced off random quarter-acre plots in Blackwater’s marsh, excluding nutria but allowing other animals to enter. After several growing seasons, the marsh plants inside the enclosure began to grow, while the vegetation outside the fencing declined. This finding proved that nutria was the direct cause of marsh loss.
Like most rodents, nutria are prolific breeders. This means that those areas with just one or two nutria won’t stay that way for long. Female nutria are fertile as young as six months old, and they can become pregnant again just 24 hours after giving birth. (Essentially, a lifetime of being pregnant.)
“Sometimes we miss a couple animals and they might find each other and start a new population,” explains Kendrot.
As the nutria problem grew serious, federal and state agencies, universities and private organizations partnered to form the Nutria Eradication Project. The project team is made up of academically trained biologists and Eastern Shore natives who have been trapping nutria since they were kids.
Although nutria have been eradicated from Blackwater since the project took off in 2002, there are still substantial populations in other, less densely populated areas. These are the spots the Nutria Eradication Project is now targeting.
Today, Kendrot and I tag along with the field team to survey for nutria on the Wicomico River, an area where residents have reported nutria.
Mario Eusi, who has been trapping nutria for years, drives our boat down the Wicomico River and turns into a narrow inlet. This area is privately owned, but the landowners have granted the team permission to access their property. This type of support is critical to the project’s success.
“About half the nutria we find are on private property,” Kendrot explains. “And almost all the property on the Wicomico is privately owned.”
Consequently, the team dedicates lots of time to public outreach. Kendrot and other team members make phone calls and sit down at kitchen tables across Wicomico and Dorchester counties to explain the harmful effects of nutria. The team must assure landowners that if they grant access to their land, they are preventing their property from disappearing. From this perspective, the federally funded Nutria Eradication Project is actually a public service to waterfront landowners – the team does their best to prevent residents’ marshland from sinking into the Chesapeake Bay.
Today we are tracking nutria, which means looking for signs such as scat, paw prints, chewed plants, flattened grass beds – anything to prove “a nutria was here.” A good tracker must have both a keen knowledge of what nutria signs look like and the sharp senses to catch them, regardless of weather conditions or the speed of the boat cruising down the river. The team also tracks nutria through other methods, including dogs, radio collars and hidden video cameras.
Finding the “nute” is the bigger half of the battle. “Trapping is the easy part,” the field team assures me. Team members must first find signs of nutria before they can decide where to set traps in the spring. I admit: I’m relieved I won’t have to see any nutria in traps today.
The tide is rising, so we have to be quick; soon, the water will wash away paw prints and make it difficult to identify nesting areas. Eusi points out the difference between nutria and muskrat scat. His eye for detail and ingrained awareness of the great outdoors makes him an excellent tracker.
Suddenly, we find a nesting site: an area of flattened grasses that looks like someone has been sitting in the marsh. The signs multiply, and soon the team is out of the boat, bushwhacking through twelve-foot high cattails. I try to catch up, but my foot gets stuck in the mud, and soon I am up to my hips in wetland!
As we continue through the marsh, we find one of the most conclusive signs of an active nutria population: a 10-foot-wide “eat-out,” or an open area where nutria have eaten all of the grasses and their roots. These bare, muddy areas, stripped of all vegetation, eventually erode away into open water.
When we spot a larger “eat-out” not a few steps away, it occurs to me that the two areas will likely merge into one giant mud flat. The cattails I just bushwhacked and the mud I sank into will soon disappear forever into the Wicomico River.
Since we have successfully tracked nutria on the Wicomico today, the team can now think about how to trap the animals.
When a nutria is trapped, it drowns quickly. Team members record the age and sex of each nutria to determine if it is newly born or if it was missed during the previous round of trapping. One way to estimate a nutria’s age is to weigh its eyeballs, because the lenses grow at a fixed rate throughout its life.
Dead nutria have another benefit: carcasses left in the wild provide food for bald eagles, turtles and other wildlife.
While the term “eradication” may conjure up images of ruthless killers, the field team does not seek to conquer these rodents. Rather, the goal is to preserve the wetlands that support the Chesapeake Bay ecosystem and define the culture and economy of Maryland’s Eastern Shore.
The team’s work also benefits the region’s economy as a whole. It’s estimated that nutria cost Maryland $4 million in lost revenue in 2004 alone. The Bay’s crab and oyster fisheries are just two of countless industries that depend on coastal wetlands. The natural filtering capabilities of marsh plants cost millions of dollars to imitate with wastewater treatment plants. Nutria eradication doesn’t just save our wetlands; it also saves our money.
Nutria are often confused with beavers and muskrats, two native and ecologically important mammals. The Fish and Wildlife Service offers a nutria identification page on its website to help you distinguish the difference between these three similar-looking species.
If you think you may have nutria on your property, you should contact the Nutria Eradication Team.
In Louisiana, the nutria infestation problem is even worse. The current generation is carrying on the traditions of fur-bearing trappers thanks to the state’s Nutria Control Program, which pays trappers per nutria they collect. The state even promotes nutria trapping by providing recipes for dishes such as smoked nutria and nutria chili!
Real fur may no longer be a faux pas for the environmentally conscious fashionista. Coats and hats made from nutria fur are considered by many to be “green and guilt-free.” George Costanza thought so, anyway: in an episode of Seinfeld, he replaces Elaine’s lost sable hat with another made from the fur of this invasive rodent.
Maryland will provide more than $19 million in grants to reduce nutrient pollution to the Chesapeake Bay and its rivers by upgrading technology at four wastewater treatment plants in the state. Upgrading wastewater treatment facilities to remove more nitrogen and phosphorus from treated sewage is a critical part of meeting Bay cleanup goals.
The four facilities that will be upgraded are:
Biological nutrient removal (BNR) uses microorganisms to remove nitrogen and phosphorus from wastewater during treatment. Wastewater treated at facilities using BNR contains less than 8 milligrams per liter (mg/l) of nitrogen. Enhanced nutrient removal (ENR) improves upon the nutrient reductions achieved through BNR. Wastewater treated at facilities using ENR contains 3 mg/l of nitrogen and 0.3 mg/l of phosphorus.
Funding for the upgrades comes from Maryland’s Bay Restoration Fund – also known as the “Flush Fee.” To learn more about wastewater treatment plant upgrades in Maryland, visit the Maryland Department of the Environment’s website.
Biologists with the Maryland Department of Natural Resources (DNR) recorded the fourth highest success rate for striped bass spawning in the Chesapeake Bay in 58 years, according to the 2011 Young of the Year Striped Bass Survey.
The survey figure of 34.6 is well above the long-term average of 11.9 and 2010’s 5.9. Striped bass spawning success varies from year to year due to factors such as water temperature, winter snowfall, spring river flow rates and weather conditions. The strong 2011 figure shows that when conditions are right, striped bass are capable of producing a large population of young.
During the 2011 survey, DNR biologists counted 47 different species among the more than 59,000 fish collected at 22 sites in the upper Bay and on the Choptank, Potomac and Nanticoke rivers. The survey also documented an increase in the abundance of juvenile blueback herring, a species that had decreased dramatically, and white perch, another important food and sport species.
Visit Maryland DNR’s website for more information about the striped bass spawning survey.
This is the fourth year the University of Maryland Center for Environmental Science’s oyster hatchery has produced more than 500 million disease-free baby oysters, called spat. The Oyster Recovery Partnership works with the university, as well as the Maryland Department of Natural Resources, the National Oceanic and Atmospheric Administration and other partners to collect and plant oysters in the Bay and its rivers.
The Oyster Recovery Partnership also processed more than 70,000 bushels of oyster shell in 2011. About 10,000 bushels were collected through the Shell Recycling Alliance, a program that takes used oyster shells from more than 100 restaurants, caterers and seafood distributors in the region. Baby oysters must attach themselves to other oysters to grow and survive, so it’s critical to collect as many used oyster shells as possible to reuse in oyster reef restoration efforts. The Shell Recycling Alliance now provides 15 percent of the oyster shells Maryland needs for its restoration efforts.
Visit the Oyster Recovery Partnership’s website to learn more about the group’s oyster restoration efforts.
The U.S. Environmental Protection Agency has approved new standards to control polluted stormwater runoff from roads, buildings and other developed areas in Washington, D.C.
The District’s renewed municipal separate storm sewer system (MS4) permit requires that redevelopment projects in the city install runoff-reducing practices to slow the flow of polluted stormwater to the Anacostia and Potomac rivers and the Chesapeake Bay.
The required practices include:
Roads, rooftops, parking lots and other hard surfaces channel stormwater directly into local rivers and streams, carrying pollution and eroding streambanks. The renewed permit will help the District in meeting its Bay pollution reduction goals and Watershed Implementation Plan (WIP).
Visit the EPA’s website to learn more about the new stormwater permit and standards.
The Maryland Department of Agriculture has received $650,760 from the USDA Natural Resources Conservation Service to implement progressive management practices for drainage systems on the Eastern Shore.
The funding, awarded through a Conservation Innovation Grant, will help the state meet its Watershed Implementation Plan (WIP) goals. The state will use the funding to use the most advanced technology available to protect the Bay and help reduce pollution while meeting modern drainage needs.
“There are 820 miles of public ditches on the Eastern Shore that were originally designed to manage agricultural drainage,” said Agriculture Secretary Buddy Hance. “Today, those ditches also support storm water drainage from urban town centers, state highways, and commercial and residential development. As a result, many of these ditches are very seriously stressed.”
Most of the Eastern Shore’s ditches were constructed in the 1960s and 1970s in Caroline, Worcester, Wicomico and Somerset counties. Collectively, they drain 220,000 acres of land.
Over the past ten years, MDA has worked with the University of Maryland to develop technologies and management recommendations that reduce pollution and improve drainage ditch function. Using the NRCS grant, Maryland will identify and target the most stressed ditch systems. It will them implement management practices to reduce runoff and improve water quality, including water control structures, phosphorous absorbing materials, weed wiper technology, and algal turf scrubber technology.
Visit the Maryland Department of Agriculture’s website to learn more about the funding and the project.
The National Fish and Wildlife Foundation will receive nearly $850,000 through a grant from the USDA Natural Resources Conservation Service (NRCS) to help Chesapeake Bay watershed farmers convert manure to energy.
The grant will be used to help farmers in Delaware, Maryland, Pennsylvania, Virginia and West Virginia convert excess manure to energy to generate income. The project will also improve the Bay’s health by reducing land application of manure. Efforts will be concentrated in four of the region’s “phosphorus hot spots” – areas with high concentrations of phosphorus in the soil.
The funding was provided through the 2011 Conservation Innovation Grants, a program that invests millions in innovative conservation technologies that address natural resources issues.
"The grants will help to spur creativity and problem solving to benefit conservation-minded farmers and ranchers," said U.S. Agriculture Secretary Tom Vilsack.
Visit www.nrcs.usda.gov for more information about the recipients of the 2011 Conservation Innovation Grants.
The Maryland Department of Natural Resources (DNR) and the Chesapeake Bay Foundation have placed 306 reef balls planted with millions of baby oysters in the Choptank River near Cooks Point.
Reef balls are three-dimensional structures that provide habitat for oysters and other aquatic organisms, including worms, mussels, striped bass and black sea bass. Reef ball plantings help restore oyster populations and promote thriving aquatic reef communities. Many reef-dependent species have not been seen in the Choptank River for many years.
Visit Maryland DNR’s website to learn more about the agency’s artificial reef initiative.
Biologists with the Virginia Department of Conservation and Recreation (DCR) are mapping phragmites along the York River as part of a strategy to control the invasive marsh plant.
The agency will use the phragmites location data to develop a web-based mapping tool. Landowners along the Mattaponi, Pamunkey and York rivers can use the map to see if phragmites is growing on their property. The map should be available on DCR’s invasive species page by winter.
“DCR is developing an improved web-based phragmites mapping application that will allow landowners to assess phragmites invasions on their own land in order to make plans for its control,” said DCR Project Manager Rick Myers.
Phragmites is a tall, perennial grass that grows in marshes. The non-native form of phragmites dominates other plants, forming monocultures that do not provide good habitat for wildlife. Although Virginia has treated thousands of acres with approved herbicides, phragmites is spreading fast because too few landowners are controlling it.
For more information, visit DCR's website.
The Chesapeake Executive Council announced progress toward Chesapeake Bay cleanup milestones, discussed plans for meeting requirements of the Bay “pollution diet,” and encouraged individual Bay stewardship at its annual meeting on July 11 in Richmond, Virginia.
Executive Council members in attendance included U.S. Environmental Protection Agency Administrator and Executive Council Chair Lisa Jackson; Virginia Gov. Bob McDonnell; Maryland Gov. Martin O’Malley; Pennsylvania Gov. Tom Corbett; District of Columbia Mayor Vincent Gray; Chesapeake Bay Commission Chair Sen. Michael Brubaker; U.S. Department of Agriculture Deputy Secretary Kathleen Merrigan; and representatives from Delaware, New York and West Virginia.
Chesapeake Bay Program partners are currently working toward short-term pollution reduction goals called milestones. All seven Bay jurisdictions are currently on-track or ahead of schedule in meeting these milestones. The deadline for the current set of two-year milestones is December 31, 2011.
Executive Council members also talked about their watershed implementation plans (WIPs), local restoration plans that show how each jurisdiction will meet pollution reductions required by the Chesapeake Bay TMDL. The jurisdictions are now in the second phase of developing their draft plans, which are due at the end of 2011.
Additionally, the Bay Program’s three advisory committees – Citizens, Local Government, and Scientific and Technical – presented to the Executive Council about Bay restoration activities from their unique areas of expertise.
The 2011 Executive Council meeting was held at the Maymont Foundation, located on the James River in Richmond. Executive Council members spent part of the afternoon touring exhibits on topics such as native plants, Bay-friendly lawn care, and soil health and testing. The location was chosen to highlight the meeting’s “Get Grounded in Tour Watershed” theme, which stresses the importance of connecting people with their local waterways. Through its Nature Center and educational programs, Maymont offers local residents a place to learn about and connect with Virginia’s environment.
"The focus of our discussions today was on empowering every citizen in the Bay watershed to be part of restoring these important waters,” said Jackson. “The actions of federal, state and local governments are just the beginning of revitalizing the Bay. We are also counting on the partnership of millions of people who live in this region to join in protecting the waters that support their health, their environment and their economy."
The Executive Council sets the policy agenda for the Chesapeake Bay Program. Visit our Chesapeake Executive Council page for more information.
Eleven federal agencies, including the Environmental Protection Agency, the Department of the Interior and the Department of Agriculture, have joined together in a new initiative to revitalize the Anacostia and Patapsco rivers.
The Urban Waters Federal Partnership will focus on the two Chesapeake Bay region rivers, as well as five other waterways throughout the United States, as pilot locations for the new initiative. The partnership’s goal is to help underserved communities access and benefit from their local waterways.
Urban waterways like the Anacostia and Patapsco rivers provide local residents with drinking water and opportunities for fishing, boating and swimming. Cleaning up and restoring these rivers is essential to protecting human health, improving quality of life, and connecting people to their local natural areas.
For more information, visit www.urbanwaters.gov.
The Virginia Department of Environmental Quality (DEQ) is seeking federal designation of several Northern Neck creeks and rivers as “no-discharge zones,” which would prohibit overboard dumping of treated or untreated sewage to reduce bacteria contamination in local waterways.
No-discharge zones promote the use of pump-out facilities and dump stations to safely dispose of sewage from boats. The certification of marine sanitation devices, which treat and/or hold sewage on vessels, is targeted to meet fishing and swimming standards in local rivers.
Shellfish harvest restrictions due to fecal bacterial contamination are common throughout Virginia’s tidal Chesapeake Bay tributaries. This contamination has been linked to a variety of sources, including failing septic systems and sewage discharge from boats.
DEQ is proposing no-discharge zones for select water bodies in Richmond, Lancaster, Northumberland and Westmoreland counties. The four-county proposal will be sent to the U.S. Environmental Protection Agency for review by July.
Virginia already has no-discharge zones in the Lynnhaven River in Virginia Beach, and in Broad Creek, Jackson Creek and Fishing Bay in Middlesex County. In the Lynnhaven River, one marina reported that pump-outs nearly doubled when the tributary was designated as a no-discharge zone. Fewer boat sewage discharges combined with other pollution-reduction measures led to the re-opening of 1,462 acres of condemned shellfish growing areas to commercial harvest.
DEQ and the Northern Neck Planning District Commission will host a public meeting on June 14 to summarize the no-discharge zone application. The meeting will be held at 6 p.m. in the A.T. Johnson Alumni Museum in Montross. DEQ will accept public comments on the application June 15 through July 15, 2011.
Visit DEQ’s website to learn more about Virginia’s “no-discharge zone” program.
EPA Senior Adviser for the Chesapeake Bay and Anacostia River Jeff Corbin discusses the challenge and importance of Chesapeake Bay restoration in our latest feature.
I have recently been given the opportunity by U.S. EPA Administrator Lisa Jackson to serve as her senior advisor for the Chesapeake Bay and Anacostia River. I am both honored and humbled to serve in this role (as well as over-whelmed and sleep-deprived).
On my second day in my new position, I found myself in a late evening meeting with the EPA deputy administrator discussing urgent Chesapeake Bay issues. On his conference table was a report he recently received and on the cover was an aerial view of the Hoover Dam. If you’ve never seen what the Hoover Dam looks like from above, I can assure you that it is awe-inspiring. To think that we humans could build such a massive structure, divert enormous natural forces, and do it in the midst of the Great Depression, got me thinking - if we can build a Hoover Dam, surely we can restore the Chesapeake Bay and rivers that feed it.
I do not make that conclusive statement lightly. Full restoration of all of the Bay region’s waters will not be easy, cheap, or without stumbles and obstacles. So then why do I say we can do it? Because not a single person I have encountered in my 14 years of restoration work has said we shouldn’t restore the health of the Bay and its rivers. And I mean not a single person. Not an elected official, not a wastewater treatment facility operator, not a homebuilder, not a farmer – no one. And that gives me great hope.
This is not to say that various interests don’t have concerns about the timeframe for restoration, or funding concerns, or how the pollution reduction responsibilities were divvied up. But they all acknowledge that we need to figure out a way to get the job done. And we will. Through the states’ newly developed watershed implementation plans and the federal government’s recent Chesapeake Bay Executive Order Action Plan, we have the vision and the strategies to see this restoration effort through.
Interestingly, many of the people who sent me congratulatory notes after hearing about my new position also expressed their condolences. I realize that they did so jokingly, but it really made me wonder why so many people would make that comment.
Is it because the Bay partnership’s restoration efforts are under scrutiny? If so, why would we discourage scrutiny? We are committed to restoring a national treasure and investing significant federal, state and local revenues to do so – we should be scrutinized. But after the scrutiny, let’s come together and get on with our restoration work.
Is it because of the sizable projected costs? We’ve always known those costs existed – they’ve been spelled out in detail in the various “tributary strategies” developed a decade ago by the Bay jurisdictions, in reports prepared by the Chesapeake Bay Commission and the Chesapeake Bay Watershed Blue Ribbon Finance Panel in 2004. If we are now questioning whether the costs are sustainable, then were we ever really “committed” to meeting our previous “commitments?”
Or is it because of the sometimes seemingly insurmountable political divide that exists in Washington? If that is the case, I remind everyone of the following quote: “Preservation of our environment is not a liberal or conservative challenge, it's common sense.” Who said that? President Reagan, in his 1984 State of the Union Address. He then announced a sizable budget increase for the U.S. EPA – specifically for the purpose of restoring the Chesapeake Bay.
I ask that we stop thinking of the expenses of a clean Bay as “costs” and start treating them for what they really are: investments. Investments in clean water that will generate considerable economic gain for the region.
I ask that we redouble our efforts and commitment to do what it will take to fully restore the health of our rivers. Clean the rivers and the Bay will take care of itself. I am referring to the collective “we” – EPA and other federal agencies, Bay region states, districts and local governments, numerous stakeholder interests, and millions of Bay watershed residents.
In 1961, President Kennedy didn't say to the American people, "Let's try really hard to put a man on the moon"; rather, he committed the nation to do so by the end of the decade. If you go back and read the various Bay Agreements that have been adopted since 1983, the word “commitment” is used extensively.
So if we are serious when we say that the Chesapeake Bay is a “national treasure,” and we wish to honor our past commitments, then let’s gather the strength, will and resources to achieve the Bay equivalent of landing a man on the moon – or maybe something easier, like building a Hoover Dam.
We can do this – and the world is watching us.
Underwater bay grasses covered 79,675 acres of the Chesapeake Bay and its tidal rivers in 2010, according to data from scientists with the Chesapeake Bay Program. This is a 7 percent decrease from 2009, when bay grasses covered 85,914 acres of the Bay’s shallows.
Despite the drop, the 2010 bay grass acreage estimate ranks as the third-highest Bay-wide acreage since 1984, when the annual survey began.
"Even with the decreases in the 2010 bay grass coverage, the patterns are similar to previous years,” said Lee Karrh, living resources assessment chief with the Maryland Department of Natural Resources and chair of the Bay Program's SAV Workgroup. “Many of the fresh and low salinity areas have very high abundances, including 16 that have reached their restoration targets. However, the saltier parts of the Bay continue to struggle, with most areas well below the restoration goals, with only the mouth of the James River exceeding the goal.”
Bay grass abundance is currently at 43 percent of the Bay Program’s 185,000-acre goal. This goal is based on approximate historic bay grass abundance from the 1930s to present.
“We were pleased that grasses remain healthy and abundant in two areas where nutrient pollution was reduced: the upper Potomac River and Susquehanna Flats,” said Bob Orth, scientist with the Virginia Institute of Marine Science and leader of the baywide annual survey. “However, the overall condition for bay grasses remains one of concern with many areas still having few, if any, grass beds.”
In the upper Bay (from the Susquehanna Flats to the Chesapeake Bay Bridge), bay grasses covered about 21,353 acres. This is a 10 percent decrease from 2009. Large increases were observed in the Chesapeake and Delaware Canal and part of the Sassafras River. However, these were offset by large decreases in local rivers, including the Bush, Bohemia and Magothy. The massive grass bed in the Susquehanna Flats continues to dominate this area.
In the middle Bay (from the Chesapeake Bay Bridge to the Potomac River and Pocomoke Sound), bay grass acreage decreased 11 percent to 35,446 acres. Most segments in this part of the Bay lost grasses. The largest percentage decreases occurred in the middle and lower central Bay, as well as the Choptank, Honga, Patuxent and Potomac rivers. Increases were seen in Tangier and Pocomoke sounds and the Manokin and Big Annemessex rivers, where eelgrass continued to come back following a 2005 die-off.
In the lower Bay (south of the Potomac River), scientists mapped 22,876 acres, a 1 percent increase from 2009. This is the fourth year that bay grasses in this part of the Bay have increased since 2005, when hot summer temperatures caused a dramatic large-scale eelgrass die-off. Most of the gains were in the upper Rappahannock, lower Piankatank, and the upper section and mouth of the James River. These gains offset losses in other areas.
“In 2010, our big concern arose in the lower Bay where eelgrass appeared to suffer another setback from the incredibly hot summertime temperatures,” said Orth. “Since we had mapped those beds prior to the heat wave, losses there are not reflected in our final figures. We believe the really hot summer temperatures in the early part of the growing season may have just cooked the grasses before we were able to map them, e.g. parts of the Honga River. The changes also occurred in areas dominated by just one species, widgeongrass, which has been shown to be a boom or bust species. 2010 may have been the hottest on record but it was those summer time temperatures in June that may have tipped the scale for SAV in some areas.”
Bay grasses – also known as submerged aquatic vegetation or SAV – are a critical part of the Bay ecosystem. They provide underwater life with food and habitat, absorb nutrients, trap sediments, reduce erosion, and add oxygen to the water.
Bay grasses are also an excellent measure of the Bay’s overall condition. The health of bay grasses is closely linked with Bay health. Annual bay grass acreage estimates are an indication of the Bay’s response to pollution control efforts.
Annual bay grass acreage is estimated through an aerial survey, which is conducted from late spring to early autumn. For more information about the aerial survey, and to view an interactive map of bay grass acreage throughout the Bay and its tidal rivers, visit VIMS’ website.
The Chesapeake Bay’s blue crab population is at its second-highest level since 1997, according to results from the 2011 Blue Crab Winter Dredge Survey. At 460 million crabs, the blue crab population is nearly double the record low of 249 million in 2007.
Additionally, the survey shows that there are 254 million adult crabs in the Bay, a figure that is above the 200 million population target for the third year in a row. This marks the first time since the early 1990s that there have been three consecutive years where the adult population was above the target.
These figures indicate that emergency crab management measures put into place in 2008 are helping the Bay’s blue crabs recover, according to the Maryland Department of Natural Resources (DNR) and the Virginia Marine Resources Commission (VMRC).
“We continue to realize the benefits of the very tough decisions we made three years ago – decisions that are bringing us closer to our ultimate goal: a self-sustaining fishery that will support our industry and recreational fisheries over the long term,” said Maryland Gov. Martin O’Malley.
“The stock’s improved status from just a few short years ago is neither a random event nor a reflection of improved environmental conditions,” said Dr. Rom Lipcius, who directs the Virginia component of the dredge survey for the Virginia Institute of Marine Science (VIMS).
The unusually high crab abundance allowed watermen to harvest more than 89 million pounds of crabs, the largest amount since 1993. In addition, recreational crabbing license sales increased by 8 percent in 2010. However, the combined commercial and recreational blue crab harvest did not exceed the target of 46 percent. This shows that a healthy crab industry can coexist with stronger regulations, according to VMRC.
Despite these positive figures, overall crab abundance declined due to this past winter’s deep freeze that killed as many as 31 percent of Maryland’s adult crabs, compared to about 11 percent in 2010. Crab reproduction – which is heavily influenced by environmental conditions – was also lower in 2011.
“It was a harsh winter and crab mortality was higher than normal. In fact, it was the worst we’ve seen since 1996,” said VMRC Commissioner Steven G. Bowman. “Thankfully, we acted when we did in 2008 to begin rebuilding the crab population, or the crab census results we see today would be grim indeed.”
“The evidence indicates we’ve succeeded in rebuilding the stock to a degree that it can withstand a perfect storm of rapid temperature drop as crabs move into their overwintering grounds in the lower end of the Chesapeake Bay, followed by a prolonged bout of cold weather,” said VMRC Fisheries Chief Jack Travelstead.
Abundance estimates for young of the year, mature female and adult male crabs are developed separately. Together, these groups of crabs will support the 2011 fishery and produce the next generation of crabs.
The annual Blue Crab Winter Dredge Survey is the primary assessment of the Bay’s blue crab population. Since 1990, Maryland DNR and VIMS have sampled for blue crabs at 1,500 sites throughout the Chesapeake from December to March. By sampling during winter – when blue crabs “hibernate” by burying themselves in the mud – scientists can develop the most accurate estimate of the Bay’s blu crab population.
For more information about the blue crab survey results, view this presentation from Maryland DNR.
New tests by the Maryland Department of the Environment (MDE) show lower levels of contaminants in the Chesapeake Bay’s striped bass (rockfish), prompting the agency to increase its recommendation for the amount of the popular fish residents can safely eat.
Revised fish consumption advisories increase the recommended meal limits for striped bass caught in the Bay for nearly every population group.
The recommended meal limits for the general population for smaller striped bass increased by 50 percent, from two meals to three meals per month
The advisories no longer include the recommendation that had existed for women and children for certain striped bass
The new recommendations stem from recent test results that show a significant decline in PCB levels in striped bass from Maryland waters. Median PCB levels fell by more than half in fish analyzed between 2001-2005 versus in 2009-2010.
Data also suggest that contaminant levels are even lower in striped bass fillets prepared without fatty portions of the fish.
“Contamination has decreased in the striped bass we tested,” said MDE Acting Secretary Robert M. Summers. “Although we do not have the data to identify a specific explanation for the decline, PCBs have been banned in the United States since 1979, and we’re encouraged by this positive indication of the improving quality of our waters.”
MDE has also released new consumption advisories for bluefish caught in the Bay. Based on new data, MDE recommends a limit of two meals per month for bluefish less than 15 inches long. Residents should avoid eating bluefish larger than 15 inches.
Fish consumption advisories provide recommended limits on how often certain fish can be eaten and still enjoy health benefits while minimizing risks. For Maryland waters, fish consumption advisories are available on MDE’s website and posted at many public fishing areas.
For more information about the revised striped bass consumption advisory, including detailed consumption advisory charts, visit MDE’s website.
Early March's heavy rains and snow melt caused a flood of nutrients and sediment to flow into the Chesapeake Bay from the Susquehanna River, according to scientists with the Maryland Department of Natural Resources.
This heavy runoff, which resulted in record poor water clarity in many areas, could harm bay grasses and cause more algae blooms to form in the Bay this spring and summer, especially if the wet weather continues.
Two days after a very heavy rainstorm that doused the region with 2+ inches of rain, the U.S. Geological Survey recorded a peak flow of 485,000 cubic feet/second (cfs) from the Susquehanna River at Conowingo Dam. This was well above the March average of 75,000 cfs and the highest average daily flow rate observed at the dam since September 2004, when floodwaters from Tropical Storm Ivan passed through.
Large amounts of fresh water flowing from the Bay’s rivers can erode stream banks and bring polluted runoff from the land into the Bay. Late winter and early spring are critical times for many of the Bay’s aquatic species. Bay grasses are just beginning to grow and many fish are starting to spawn.
Maryland DNR will continue to monitor water conditions to assess any short- or long-term storm effects of the wet weather.
For more information, visit Maryland DNR's website.
Scientists observed more than 640,000 ducks, geese and swans along Maryland’s Chesapeake Bay shoreline this winter as part of the U.S. Fish & Wildlife Service and Maryland Department of Natural Resources’ annual Midwinter Waterfowl Survey. This is a decline from 2010, when approximately 787,000 waterfowl were counted.
The decline is largely due to fewer Canada geese and snow geese being counted for the survey. Large numbers of geese likely went undetected because they were on farms and other inland habitats. Overall, the wintering Canada geese remained high.
More ducks were counted in 2011 (199,300) than in 2010 (173,700) due to snow and cold weather north of Maryland, according to DNR. In particular, there were more mallards and canvasbacks, as well as an exceptional number of gadwalls on the Susquehanna Flats.
The Midwinter Waterfowl Survey has been conducted annually throughout the United States since the early 1950s. Maryland survey results are ultimately pooled with results from other states to measure wintering waterfowl distribution and populations throughout the Atlantic Flyway, according to DNR Waterfowl Project Leader Larry Hindman.
“The survey is conducted in a coordinated manner across the Atlantic Flyway states to provide an annual index of the population size for important waterfowl species like black ducks, Atlantic brant and tundra swans,” Hindman said.
Visit Maryland DNR’s website to view the full survey results.
EPA Administrator Lisa Jackson has appointed Jeff Corbin as her senior adviser on Chesapeake Bay restoration.
In his new position, Corbin will help coordinate all aspects of the EPA’s strategic Chesapeake Bay initiatives. He will also serve as the lead liaison among the EPA, other federal and state government agencies, and various stakeholders throughout the Chesapeake Bay watershed.
Corbin is currently a senior adviser to EPA Region 3 Administrator Shawn Garvin, with whom he works closely on Chesapeake Bay issues.
Prior to joining the EPA in 2010, Corbin served as assistant secretary of natural resources in Virginia. During that time he worked closely with the Chesapeake Bay Program when then-Gov. Tim Kaine was chair of the Chesapeake Executive Council.
Corbin also spent nearly 10 years with the Chesapeake Bay Foundation, ultimately serving as its Virginia deputy director and senior scientist.
Administrator Jackson’s former senior adviser on the Chesapeake Bay, Chuck Fox, left the position at the end of last year.
The number of baby oysters in the Maryland portion of the Chesapeake Bay is at its highest level since 1997, and more young oysters appears to be surviving the effects of diseases, according to a recently completed survey by the Department of Natural Resources (DNR).
Since 1939, Maryland has monitored the status of the oyster population through annual field surveys. The surveys track three critical components of the oyster population: reproduction levels, disease infection levels and annual mortality rates.
The two-month 2010 fall population assessment covered 260 oyster bars and 399 samples throughout the Bay and its rivers. Scientists found 80 baby oysters (called spat) per bushel; about five times the 25-year average of 16.
The increased spat set is an immediate asset to Maryland’s expanded sanctuary program,” said DNR Fisheries Director Tom O.Connell. These protected oysters will grow and reproduce, contributing more oysters to the Bay's sanctuary and surrounding aquaculture and public fishery areas, and providing important ecological benefits such as water filtration and reef habitat.
Oyster spat were also widely distributed throughout the Bay and its rivers. While the largest amounts were in the lower Bay’s saltier waters, where reproduction is typically more successful, a moderate spatfall also occurred in fresher waters that generally have little to no spat sets. Some of these areas included the upper Bay as far north as Pooles Island and the upper reaches of the Chester, Choptank and Patuxent rivers.
Additionally, the frequency and intensity of the oyster diseases MSX and Dermo remains low. Dermo remains below the long-term average for the eighth consecutive year, and MSX has fallen after a spike in 2009. Oyster survivorship, measured by the percentage of living oysters per sample, was 88 percent, the highest level since 1985 and more than double the 2002 level.
"These moderate levels of natural oyster mortalities during recent years may reflect increases in disease resistances among oysters and their progeny that survived the severe disease pressures of the 1999-2002 drought,"said Chris Dungan, manager of oyster disease research at the NOAA Oxford Lab.
Since 2000, DNR, the NOAA Chesapeake Bay Office and the University of Maryland have produced more than 2.5 billion oyster spat in hatcheries and planted then in Maryland waters. The partnership has also reclaimed thousands of acres of buried shells from derelict oyster reefs.
Visit Maryland DNR's website to view the full results of the oyster survey.
Today we’re introducing a new blog feature called “Ask a Scientist.” Each month, we'll take a question submitted through our website or Twitter (@chesbayprogram) and have a scientist from the Bay Program partnership answer it here on our blog.
Today's question is about restoring bay grasses in the Chesapeake Bay. One of our readers wanted to know if he could help restore bay grasses in his local creek by planting bay grass seeds. We turned to Mark Lewandowski, natural resources biologist with the Maryland Department of Natural Resources and member of the Bay Program's Submerged Aquatic Vegetation (SAV) Workgroup, for some expert advice.
Many people who live in the Chesapeake Bay watershed do everything they can to help the environment. They recycle, compost, use rain barrels, or plant native plants and shrubs. But people always want to know what else they can do.
Culturing oysters, growing wetland plants and planting underwater bay grasses all seem like good, easy ways to help. So what’s so hard about planting bay grasses? Isn’t it as simple as getting some seeds, planting them in an aquarium and watching them grow?
Many people have successfully grown grasses in their aquarium. But very few people have had success planting them in the Bay because the grasses do not survive over the long term. Selecting an appropriate site to plant bay grasses requires a lot of research and information.
Water quality is the biggest factor in bay grass survival. All bay grasses need enough light to photosynthesize, so clear water is critical. Each type of bay grass has very specific physiological needs that are different for each species.
The next requirement is proper substrate.; The bottom sediment can't be too sandy or the plant won't root. It can't be too silty or the transplant will just get buried. And it can't have too much clay. In addition, plants need the correct balance of nutrients to grow. Scientists have access to the most comprehensive data available, as well as specialized analytical tools that can pinpoint the sites where grasses might flourish.
In addition to finding the right conditions, you also need a large number of plants for the grasses to take hold. Planting a few square meters of bay grasses off the end of your pier is almost never successful. Bay grasses on the outside of a bed protect the core of the bed. So the grasses that are on the fringe will die back, protecting the center of the bed from waves and animal grazing.
Restoration would be easier if we could just buy seeds from a garden center. However, our experience is that only bay grass seeds collected from grass beds in the Bay have the best chance of survival. Even this is not an ideal or easy approach, though. Collecting seeds from the Bay depletes the seed stock that naturally replenishes bay grass beds. It also requires a permit from resource management agencies and may require specialized equipment to harvest. Additionally, it’s necessary to have specific knowledge of seed development to ensure that the seeds collected are mature and will germinate.
So keep doing the things you are doing to help the Bay already, but it may be best to leave bay grass restoration to the experts.
Visit Maryland DNR's website to learn more about the agency's bay grass restoration efforts.
The U.S. Environmental Protection Agency (EPA) along with the state of Maryland and the District of Columbia have announced a new Total Maximum Daily Load (TMDL) or “pollution diet” for trash in the impaired Anacostia River as directed by the federal Clean Water Act. The TMDL will require the capture or removal of more than 600 tons of trash from the Anacostia watershed each year, making the Anacostia the first interstate river in the country with a Clean Water Act limit on trash.
Officials believe limiting the amount of trash in the Anacostia watershed will be a step in the right direction toward a “fishable and swimmable” Anacostia River by the year 2032. Every year, hundreds of tons of trash and debris make their way to the Anacostia River either through illegal dumping or stormwater runoff carrying it into the river. This trash then flows downstream to the Potomac River and eventually the Chesapeake Bay.
"This precedent-setting 'trash TMDL' is a multi-regional commitment to finally attack the trash traveling through our storm drain systems," said Maryland Department of the Environment Secretary Shari T. Wilson. "Trash has for too long been a problem in our waterways and communities – reducing trash and stormwater runoff is key to restoring the Anacostia River, the Potomac River and the Bay."
The Anacostia River was placed on both Maryland and the District’s impaired waters lists in 2006 due to this excessive amount of trash pollution.
The new pollution diet will also contribute to the five-year-old Trash-Free Potomac Watershed initiative, which the Alice Ferguson Foundation celebrated by holding its fifth annual Potomac Watershed Trash Summit this week. The summit included a ceremonial signing of the Potomac Watershed Trash Treaty as well as roundtables and exhibits on enforcement, composting, public education and regulation.
The initiative is working to have a trash-free Potomac by the year 2013, with a campaign using public education and market-based approaches, including the District’s 5-cent tax on plastic bags.
Trash in our rivers is not only unappealing from an aesthetic standpoint, making our natural areas more difficult to enjoy, but it can also cause serious damage to wildlife and habitats. The health of our local waterways, including the reduction of trash flowing to them, is vital to the health and restoration of the Chesapeake Bay. The Bay cannot be fully restored if its tributaries are unhealthy and plagued by pollution.
A TMDL, as required by the Clean Water Act, establishes the amount of a given pollutant that a water body can take without compromising water quality standards. The state and District’s new stormwater regulations will work in coordination with the TMDL to reduce the amount of trash entering the Anacostia River.
The U.S. Environmental Protection Agency has proposed draft sediment limits as part of a “pollution diet” the agency is developing to restore the Chesapeake Bay and its local streams, creeks and rivers.
The watershed-wide draft limit of 6.1-6.7 billion pounds of sediment per year is divided among the six watershed states and the District of Columbia, as well as the major river basins. In 2009, an estimated 8.09 billion pounds of sediment flowed to and clouded the waters of the Bay and its tributaries.
Excess sediment suspended in the water is one of the leading causes of the Chesapeake Bay's poor health. The culprits are the tiny clay- and silt-sized fractions of sediment. Because of their small size, clay and silt particles often float throughout the water, rather than settling to the bottom, and can be carried long distances during rainstorms.
When there is too much sediment in the water, the water becomes cloudy and muddy-looking. Cloudy water does not allow sunlight to filter through to bay grasses growing at the bottom of the Bay's shallows. Just like plants on earth, bay grasses need sunlight to grow; without it, these underwater grasses die, which affects the young fish and blue crabs that depend on bay grasses for shelter.
Bay jurisdictions are expected to use the draft allocations as the basis for completing their Watershed Implementation Plans (WIPs), which detail how they will further divide the limits among different sources of pollution and achieve the required reductions. Jurisdictions must provide the first drafts of their WIPs to the EPA by September 1, and final Phase 1 WIPs are due November 29.
“While we all recognize that every jurisdiction within the watershed will have to make very difficult choices to reduce pollution, we also recognize that we must collectively accelerate our efforts if we are going to restore this national treasure as part of our legacy for future generations,” said EPA Regional Administrator Shawn Garvin.
The EPA expects the Bay jurisdictions to have all practices in place to meet their established pollution limits by 2025, with 60 percent of the effort completed by 2017. Progress will be measured using two-year milestones, or short-term goals. The EPA may apply consequences for inadequate plans or failing to meet the milestones.
The EPA will issue a draft Chesapeake Bay Total Maximum Daily Load (TMDL) – the “pollution diet” – on September 24, with a 45-day public comment period immediately following. The final Bay TMDL will be established by December 31.
The EPA proposed draft allocations for nitrogen and phosphorus in July.
For more information about the Chesapeake Bay TMDL, visit www.epa.gov/chesapeakebaytmdl.
The U.S. Department of Agriculture (USDA) will expand outreach and innovative conservation practices on farmland in three small watersheds in Maryland, Pennsylvania and Virginia to show how focusing funding, sound science and strong partnerships in small geographic areas can help improve the health of local waterways and ultimately the Chesapeake Bay.
The three small watersheds, called “showcase watersheds,” are:
USDA’s goal is to reach out to all of the farmers in each watershed to learn about the types of voluntary conservation practices they are currently using and to let them know about opportunities for financial and technical assistance.
Each watershed has its own restoration goals and will receive additional funding and staff to help increase the use of agricultural conservation practices on local farms. The U.S. Environmental Protection Agency is also contributing funding, and the U.S. Geological Survey will conduct local water monitoring. Local watershed groups and nonprofits are also involved in the efforts.
The showcase watersheds concept is part of the USDA’s plan to implement new conservation practices on four million acres of farmland in the Bay watershed by 2025, a commitment included in the federal government’s recently released Strategy for Restoration and Protection of the Chesapeake Bay Watershed.
“The showcase watersheds strengthen USDA’s commitment to funding priority conservation practices in places that will do the most good for water quality in the Bay and its tributaries,” said USDA Deputy Secretary Kathleen Merrigan at an event to announce the showcase watersheds.
The USDA’s Bay watershed work is funded in large part by the Chesapeake Bay Watershed Initiative, which was established in the 2008 Farm Bill and provides $188 million from 2009-2012.
Visit the USDA’s website for more information about the showcase watersheds and other Chesapeake Bay activities.
Maryland has awarded $6 million in grants from the Chesapeake and Atlantic Coastal Bays Trust Fund to help local communities and landowners reduce pollution to the Chesapeake Bay.
Maryland Gov. Martin O’Malley announced the recipients at the recent Chesapeake Executive Council meeting in Baltimore, noting that the appropriation is the trust fund’s highest to date.
The Chesapeake and Atlantic Coastal Bays Trust Fund was created in 2007 to accelerate Bay restoration by focusing financial resources on the most effective pollution control projects that help achieve the state’s two-year milestones.
“These dollars are targeted in areas and ways that science shows us will have the best results,” said Gov. O’Malley. “This process allows us to select those projects that will deliver the greatest possible benefits to the Chesapeake Bay and its tributaries.”
The recipients announced at the Executive Council meeting include:
The projects will be funded for up to three years.
Trust fund grants were available to local governments and non-government organizations that demonstrated an ability to implement projects necessary to help achieve the two-year milestones for Bay restoration.
The first of the two-year milestones – short-term pollution-reduction goals set in 2009 – are scheduled to be met by December 2011. Under the milestones, the six Bay states and the District of Columbia will put actions into place to reduce a projected 15.8 million pounds of nitrogen and 1.1 million pounds of phosphorus.
The trust fund is generated through motor fuel taxes and car rental taxes in Maryland. When fully funded, it is expected to generate $50 million annually. This year’s budget sets aside a total of $20 million for the trust fund for the new fiscal year beginning in July.
Visit the Maryland Department of Natural Resources’ website for more information about the Chesapeake and Atlantic Coastal Bays Trust Fund.
Underwater bay grasses covered 85,899 acres of the Chesapeake Bay and its tidal rivers in 2009, about 46 percent of the 185,000-acre baywide abundance goal, according to data from scientists with the Chesapeake Bay Program. This was a 12 percent increase from 76,860 acres in 2008 and the highest baywide acreage since 2002.
Bay grasses -- also called submerged aquatic vegetation or SAV -- are critical to the Bay ecosystem because they provide habitat and nursery grounds for fish and blue crabs, serve as food for animals such as turtles and waterfowl, clear the water, absorb excess nutrients and reduce shoreline erosion. Bay grasses are also an excellent measure of the Bay's overall condition because they are not under harvest pressure and their health is closely linked to water quality.
“The overall increase in SAV acreage in 2009 was strongly driven by changes in the middle and lower Bay zones, including Tangier Sound, the lower central and eastern lower Chesapeake Bay, Mobjack Bay, and the Honga, Rappahannock and lower Pocomoke rivers,” said Bob Orth, scientist with the Virginia Institute of Marine Science (VIMS) and leader of the SAV baywide annual survey.
Bay grass acreage increased in all three of the Bay’s geographic zones – upper, middle and lower – for just the second time since 2001.
Upper Bay Zone (from the Chesapeake Bay Bridge north)
In the upper Bay zone, bay grasses covered about 23,598 acres, just shy of the 23,630-acre goal for this area and a 3 percent increase from 2008.
Large percentage increases were observed in the Northeast River, part of the Sassafras River and the upper central Chesapeake Bay, an area just north of the Bay Bridge. However, bay grass acreage in a few local rivers, such as the Bush and Magothy, decreased significantly and offset increases elsewhere.
Overall, the massive grass bed on the Susquehanna Flats continues to dominate this zone.
“The growth and persistence of the SAV bed in the Susquehanna Flats – including the largest bed in the Bay – continues to be a major success story for bay grass recovery today,” said Lee Karrh, living resources assessment chief with the Maryland Department of Natural Resources and chair of the Bay Program's SAV Workgroup. “Many of the Bay’s lower salinity areas are doing well and seem to be driven by reductions in nutrient pollution entering the Bay. Seventeen segments in this zone have met or exceeded their restoration targets.”
Middle Bay Zone (from the Chesapeake Bay Bridge to the Potomac River and Pocomoke Sound)
In the middle Bay zone, bay grass acreage increased 15 percent to 39,604 acres, 34 percent of the 115,229-acre goal.
Eighty-four percent of the acreage increase in the middle Bay zone occurred in five segments: Eastern Bay, the Honga River, Pocomoke and Tangier sounds, and the lower central Chesapeake Bay. These changes reflect a large expansion of widgeon grass – the dominant SAV species in the middle Bay zone – as well as the continued recovery of eelgrass in Tangier Sound.
Elsewhere in the middle Bay zone, large percentage declines in bay grass acreage were observed in the Severn River and Piscataway Creek, a tributary of the Potomac River.
Lower Bay Zone (south of the Potomac River)
In the lower Bay zone, researchers mapped 22,697 acres of bay grasses – a 17 percent increase from 2008 and 49 percent of the 46,030-acre restoration goal. This is the third year that bay grasses in the lower Bay zone have increased since 2005, when hot summer temperatures caused a dramatic large-scale dieback of eelgrass.
Eighty-two percent of the acreage increase in the lower Bay zone occurred in Mobjack Bay, the lower Rappahannock River and the eastern lower Chesapeake Bay.
None of the 28 segments in the lower Bay zone saw large declines in bay grasses in 2009.
“We are cautiously optimistic about eelgrass recovery now that it is into its third year following the 2005 dieback,” said Orth. “But we are concerned about the long-term absence of eelgrass from areas that traditionally supported large dense beds, such as much of the York and Rappahannock rivers, many of the mid-Bay areas just north of Smith Island, and in the deeper areas of Pocomoke Sound. Declining water clarity noted in much of the lower Bay may be a major impediment to eelgrass recovery.”
Annual bay grass acreage estimates are an indication of the Bay's response to pollution control efforts, such as implementation of agricultural best management practices (BMPs) and upgrades to wastewater treatment plants.
Bay watershed residents can do their part to help bay grasses by reducing their use of lawn fertilizers, which contribute excess nutrients to local waterways and the Bay, and participating with their local tributary teams or watershed organizations.
Bay grass acreage is estimated through an aerial survey, which is flown from late spring to early fall. Visit VIMS’s website for additional information about the aerial survey and an interactive map of bay grass acreage throughout the Bay.
The U.S. Environmental Protection Agency (EPA) has issued a draft permit to the District of Columbia requiring the District to continue improving its Municipal Separate Storm Sewer System (MS4) program for controlling stormwater runoff.
“This permit can serve as a model to other municipalities for preventing runoff from washing harmful pollutants into streams and rivers in the Bay watershed,” said Shawn M. Garvin, the EPA’s mid-Atlantic regional administrator.
Medium and large MS4s such as the District’s are required by federal law to have permits covering their discharges. The permit announced today requires the District to take progressive steps that were not required by the old permit issued in 2004, including:
The new permit conditions are necessary because large portions of impervious surfaces such as roads, rooftops and parking lots in the District channel stormwater directly into local streams and rivers. Improperly managed stormwater runoff can damage streams, cause significant erosion and carry excessive pollutants downstream and into the Chesapeake Bay.
The EPA is accepting public comments on the permit through June 4, 2010 and expects to finalize the permit within three months of the close of public review.
January 2010 -- The head of the U.S. Environmental Protection Agency has been named chair of the Chesapeake Executive Council, assuming responsibility for the Chesapeake Bay Program’s policy-setting committee from outgoing Virginia Governor Timothy Kaine.
During a meeting of the Executive Council in Arlington, Va., EPA Administrator Lisa Jackson promised to continue the Bay Program’s positive momentum and lead the regional partnership into a new era of progress and accountability as Executive Council chair.
“It’s an honor to chair the Executive Council at this moment of unprecedented opportunity,” Jackson said. “Chesapeake Bay communities have spent years calling for cleaner water and a healthier environment. We have a renewed opportunity to show them real progress.”
Administrator Jackson noted that 2009 was a historic year for the Chesapeake Bay restoration effort, with the states’ commitment to two-year milestones for implementing pollution controls and President Obama’s Executive Order on the Chesapeake Bay.
2010, however, could be a turning point for the Chesapeake Bay through the completion of the Chesapeake Bay TMDL and a new restoration strategy required by the Executive Order. The six states and District of Columbia will also receive $11.2 million in federal funding – more than double 2009 levels – to increase permitting, enforcement and other regulatory activities.
“Success in restoring the Chesapeake Bay and local waterways hinges on the collective effort of all stakeholders, and this partnership provides a vehicle for federal and state governments to collaborate and ultimately reach our common goals,” said Jackson, who also serves as chair of the Federal Leadership Committee established by the Executive Order.
Governor Kaine held the position of Executive Council chair since November 2008. His gubernatorial term ends this month.
"Last year, we charted a new, more effective course for improving the health of Bay waters by establishing critical two-year milestones that will serve as the foundation for future success," said Kaine. "I am pleased with what we've been able to accomplish by working together, and I have no doubt that Administrator Jackson will build on our progress in 2010."
As Governor of Virginia, Kaine permanently conserved nearly 400,000 acres of land, worked with Maryland to better protect the blue crab population, strengthened stormwater regulations, and launched climate change planning.
As chair of Executive Council, Kaine led the effort to create two-year milestones, which represented a fundamental shift in goal-setting, and worked with the White House on the Executive Order, the most significant federal action on the Chesapeake Bay in 25 years.
(Learn more about Governor Kaine’s environmental accomplishments.)
“The health of our Chesapeake Bay is critical to the environmental and economic future of the states that surround it and the people who enjoy it, and these regional partnerships have been invaluable to these efforts,” said Maryland Governor Martin O’Malley, past chair of the Executive Council. “Adding to these efforts the passion, partnership and authority of EPA Administrator Jackson will guide us through a new era of progress and accountability.”
“The Chesapeake Bay Commission looks forward to continuing the strong partnership we have established with the Bay Program and working closely with Administrator Jackson in finding new and innovative ways to clean our Bay and preserve this national treasure for generations yet to come,” said Chesapeake Bay Commission Chair, Virginia Delegate John A. Cosgrove.
Virginia Governor and outgoing Chesapeake Executive Council Chair Timothy Kaine
Maryland Governor and past Chesapeake Executive Council Chair Martin O'Malley
Chesapeake Bay Commission Chair and Virginia Delegate John Cosgrove
EPA Administrator and incoming Chesapeake Executive Council Chair Lisa Jackson
Media Question and Answer Session (two parts)
The U.S. Environmental Protection Agency is initiating new federal rulemaking to help control polluted runoff from cities, suburbs and farmland to the Chesapeake Bay and its network of streams and rivers.
The EPA is working with the six Bay watershed states and the District of Columbia to strengthen regulations on major sources of water pollution, including stormwater and concentrated animal feeding operations (CAFOs), to achieve the pollutant reductions of the Chesapeake Bay TMDL, a federal pollution budget currently in development.
"We’re developing the most rigorous framework to date for reducing pollution in the Bay and its watershed," said EPA Administrator Lisa Jackson, who announced the new rules. "These rules will provide critical backstop measures to ensure accountability in state efforts that are the frontline for success in this historic cleanup effort."
The EPA’s regulatory initiatives for the Chesapeake Bay watershed include three major components. Each includes mechanisms to encourage and support alternative state regulatory actions.
Stormwater: No later than November 2012, the EPA will consider options for the Chesapeake Bay watershed that go beyond national requirements for controlling stormwater runoff from newly developed and redeveloped sites. These more stringent elements may include:
The U.S. Environmental Protection Agency (EPA) has outlined a series of consequences it could impose on the six Chesapeake Bay states and the District of Columbia if the jurisdictions do not make adequate progress reducing pollution to the Bay and its local waterways.
The consequences, listed in a letter from the EPA to the governors of the six states and the mayor of D.C., is a follow-up to a November letter that set the federal agency’s expectations for the jurisdictions to reduce water pollution as part of the developing Chesapeake Bay TMDL.
Federal, state and local officials have been working together to develop the Bay TMDL, a pollution budget that will set limits for sources of nitrogen, phosphorus and sediment to the Bay and its tidal creeks, rivers and bays.
While the six Bay states – Delaware, Maryland, New York, Pennsylvania, Virginia and West Virginia – and the District of Columbia have considerable flexibility in how they achieve reductions, the jurisdictions must meet milestones every two years for implementing pollution controls.
If any jurisdiction creates an inadequate cleanup plan or fails to meet its milestones, the EPA may impose a variety of consequences, including:
Within 60 days of receiving a deliverable – such as a plan, milestone or permit – the EPA will provide an assessment. If EPA finds a deliverable inadequate, the state or D.C. will then have 30 days to respond. EPA will deliver its final assessment and indicate any consequence the agency intends to impose within 120 days of the original submission.
By 2011, the EPA expects the states and D.C. to divide their allocated pollution loads to the local level so that counties, municipalities, conservation districts and watershed organizations understand their role in meeting Bay cleanup goals. The states and D.C. also must offset any increased loads from population growth and land use changes anticipated in the coming decades.
The EPA expects that by 2017, pollution controls will be in place that should result in approximately 60 percent of the required reductions. All measures needed to reach the pollution load limits must be in place no later than 2025.
To help the six states and D.C. improve their pollution control programs, the EPA will provide technical assistance and an additional $11.2 million in grants for fiscal year 2010 – more than double 2009 funding levels. The money will help the states improve permitting, enforcement and other key regulatory activities to reduce pollution.
“President Obama, EPA and the states want real, measurable results to restore and protect the Chesapeake Bay. To get there, EPA is strengthening support for our partners, setting clear standards for progress, and ensuring accountability if those standards aren’t met,” said EPA Administrator Lisa P. Jackson.
Read the full letter from the EPA to the states and D.C. for additional details about the federal consequences.
As part of a draft strategy to restore and protect the Chesapeake Bay and its rivers, federal agencies including the Environmental Protection Agency (EPA) and the departments of Agriculture, Commerce, Defense, Homeland Security, Interior and Transportation will accelerate Bay cleanup efforts by meeting two-year milestones that lead to all activities needed to restore the Bay and its rivers being in place no later than 2025.
The draft strategy, part of the Chesapeake Bay Executive Order that President Obama signed in May, contains a comprehensive suite of federal initiatives to address the challenges facing the Chesapeake Bay and its watershed.
“This is the broadest and most publicly accountable cleanup effort ever seen on the Chesapeake Bay and its watershed,” said EPA Administrator Lisa P. Jackson. “It’s time for a new era of decisive federal leadership, and new partnerships with state government, nonprofits, the private sector and residents who have all been working to create a cleaner Bay.”
Collectively, the initiatives support three actions:
To accomplish these actions, federal agencies will work closely with the six Bay watershed states and the District of Columbia.
Another important component of the draft strategy is empowering local restoration efforts. Federal agencies will expand technical assistance and resources, and support development of innovative technologies and economic markets for ecosystem services.
Federal agencies have also developed a suite of accountability and transparency measures led by ChesapeakeStat, a publicly accessible online tool that will identify restoration projects, funding and progress.
The draft strategy also calls for an annual plan for spending; reporting on environmental health and restoration progress; and an independent evaluation of federal efforts.
The public is encouraged to provide feedback on the draft strategy during the public comment period, which runs from now to Jan. 8, 2010. The draft strategy will evolve significantly through public comments, state consultations and agency revisions before the final strategy is published in May 2010.
Download the entire draft strategy or the executive summary at the Chesapeake Bay Executive Order website.
The U.S. Environmental Protection Agency (EPA) has given the six states in the Chesapeake Bay watershed – Delaware, Maryland, New York, Pennsylvania, Virginia and West Virginia – and the District of Columbia its expectations for the jurisdictions to reduce pollution to the Bay and its streams, creeks and rivers to meet federal water quality standards.
The expectations are part of the Chesapeake Bay Total Maximum Daily Load (TMDL), a set of pollution limits that will reduce the amount of nitrogen, phosphorus and sediment that flows to the Bay and its tidal tributaries.
The EPA expects the six Bay states and D.C. to show how they will reduce pollution loads to levels necessary to meet water quality standards. The jurisdictions will create detailed schedules with specific timelines for implementing and achieving pollution reductions.
By 2010, the EPA expects the six Bay states and D.C. to identify gaps in current programs that must be addressed to meet pollution limits. By 2011, the seven jurisdictions must divide allocated pollution reductions to the local level so counties, municipalities, conservation districts and watershed organizations understand their role in meeting pollution reduction goals.
The EPA will measure the jurisdictions’ progress through two-year milestones that lead up to 2025, when all measures needed for a restored Bay must be put into place.
Should a jurisdiction fail to create an adequate plan or meet its performance milestones, the EPA may impose federal consequences. These consequences will be identified later this fall.
Read the full expectations letter from the EPA to the seven Bay jurisdictions, and visit the EPA’s website for more information about the Chesapeake Bay TMDL.
A crew of about a dozen biologists from the Maryland Department of Natural Resources (DNR), Frostburg University and Marshall University spent an October afternoon searching for the Maryland darter, a fish that was last seen in 1988 and is feared to be extinct. Though their search proved unsuccessful, biologists are not giving up hope.
The Maryland darter, a 2- to 3-inch long fish, was last seen by Dr. Richard Raesly of Frostburg University in 1988. The fish has historically been found in just three Maryland streams near the mouth of the Susquehanna River. Using new technology, Dr. Raesly worked with Tom Jones of Marshall University to sample the river bottom at Susquehanna State Park.
The crew of biologists divided into two teams that worked with two large seine nets to try to catch the darter. One person on each team wore a backpack with an electric shocker that could send a current into the water in a 3-foot radius. The electric current does not harm fish; it only stuns them so biologists can easily gather them in the seine net for an accurate sample of the stream.
Pulling up the net, the team members sifted through leaves, sediment and other creatures in search of the Maryland darter. But no luck. Once an area had been sampled, the team moved downstream to continue the search.
Scientists involved with the project all gave the same answer as to why it is important to find the darter, particularly now: biodiversity.
DNR biologist Scott Stranko explained that just as the entire world is becoming more socially homogenized, the environment is undergoing the same kind of transformation, with just a few species that are found everywhere.
“All the streams are looking very much the same and we’re losing that specialness,” Stranko said. “While Maryland has been losing native stream species, we’ve gained widespread non-native species like carp and snakeheads that can be found all over the world. If this trend continues, no streams will be special like the Maryland darter streams once were.”
The livelihood of small species such as the darter also speaks volumes about the health of the tributaries that lead to the Chesapeake Bay. Since the Maryland darter was last seen in 1988, development has boomed in the areas surrounding Susquehanna State Park. In this landscape of overdevelopment, just a small amount of concrete or asphalt near the river’s freshwater streams is all it takes to create enough polluted runoff to harm underwater life. Biologists believe this is the main cause of the disappearance of the darter.
The fear that the Maryland darter is extinct still looms in the biologists’ minds. But they are hopeful that new technology and the largest search effort in decades will help them rediscover this rare fish.
The team will trawl the Susquehanna River once again on November 6-8 to continue the search. For more information about the Maryland darter, visit DNR’s website.
U.S. Environmental Protection Agency (EPA) Administrator Lisa Jackson has named J. Charles Fox as senior advisor on the Chesapeake Bay and Anacostia River.
Fox has an extensive and distinguished career as a champion for the environment:
Fox’s appointment is another signal that the EPA is renewing and deepening its mission to protect America’s environment under President Obama. The decision to name Fox as a senior advisor continues the EPA’s long-standing commitment to restoring the Bay and its rivers, such as the Anacostia.
“I look forward to working closely with Bay Program Director Jeff Lape and the talented and hard-working staff in Annapolis and EPA’s regional office in Philadelphia, who share my deep dedication to the Chesapeake Bay,” said Fox. “I also value the opportunity to work collaboratively with the Bay Program’s many federal and state partners to make great progress in restoring our nation’s largest estuary.”
A recently released report by the U.S. EPA shows that many areas around the Bay’s shoreline are already witnessing the effects of sea level rise and that vulnerable tidal marshes may erode more rapidly over the next century because of climate change.
The report, Coastal Sensitivity to Sea-Level Rise: A Focus on the Mid-Atlantic Region, examines the impacts of sea level rise on the human communities and wildlife habitat of the Mid-Atlantic coast, including Chesapeake Bay. According to the EPA, the Mid-Atlantic region is one area of the U.S. that will likely see the greatest impacts of climate change due to rising waters, coastal storms and a high population concentration along the coastline.
At the 20th century rate of sea level rise (3-4 mm per year), extensive areas of marsh in the Bay (depicted in red in the image to the right) will become marginal, or only able to survive under optimal conditions. Other low-lying areas, depicted in blue, will be fully submerged at the current rate of sea level rise. The report cites evidence that sea level rise is increasing due to climate change, which would accelerate erosion of the Bay’s marshes.
A clear example of the effects of sea level rise can be seen on the Bay’s marsh islands, many of which have already been lost or severely eroded. These islands are vital to bird species like terns, black skimmers and American oystercatchers, which use the islands to nest and breed. On the mainland shoreline of the Bay, nearly all of the beaches are eroding, which has led many waterfront property owners to install hardened shorelines as protection.
In addition to the effects of sea level rise, the report details the efforts of state and local governments throughout the Mid-Atlantic to protect coastal communities against erosion. Maryland is noted as having the most stringent policies on development along the Chesapeake and coastal areas. The state’s Critical Area laws limit development within 1,000 feet of the shoreline.
“Our state is particularly vulnerable to the impacts of climate change -- including sea level rise,” said Maryland Gov. Martin O’Malley in response to the EPA report. “We are making real progress in both preparing for the impacts of climate change but also in reducing the actions that contribute to it.”
However, the report shows that most shoreline protection structures are designed to protect properties from current sea level, rather than the anticipated increases. “Preparing now can reduce the eventual environmental and economic impacts of sea level rise,” reads a report highlight.
Waterfront property owners interested in learning more on how they can protect their shoreline from erosion and sea level rise can visit Maryland DNR’s website for more information.
The U.S. Department of Agriculture (USDA) has released $23 million for the Chesapeake Bay Watershed Initiative, a program of the 2008 Farm Bill that provides the region’s farmers with assistance to implement vital agricultural conservation practices to help clean up the Bay.
The funding will support nutrient management, cover crops, crop residue management, vegetative buffers and other agricultural conservation practices that help reduce pollution flowing into the streams, creeks and rivers that feed the Bay.
Eligible private farmland owners will receive technical and financial assistance to address wetland, wildlife habitat, soil, water and related concerns. The funding will also provide land owners with assistance to plan, design, implement and evaluate habitat conservation and restoration.
“The Chesapeake Bay Watershed initiative is an important source of technical and financial assistance to agricultural producers who want to go the extra mile to improve and protect the Bay,” said Agriculture Secretary Ed Schafer.
Farmland covers almost one-quarter of the Chesapeake watershed and is the largest single source of nutrient and sediment pollution to the Bay, contributing an estimated 42 percent of nitrogen, 46 percent of phosphorus and 72 percent of sediment annually.
The $23 million is the first part of a total of $188 million that the region will receive through the Chesapeake Bay Watershed Initiative over the next four years. This is one of the largest single federal investments in the Bay clean-up effort and an unprecedented targeting of Farm Bill resources to a specific watershed. Congress has authorized future funding levels of $43 million in 2010, $72 million in 2011 and $50 million in 2012.
USDA’s Natural Resources Conservation Service (NRCS) will administer the Chesapeake Bay Watershed Initiative. Many Chesapeake Bay Program partners, including the six Bay states and the Chesapeake Bay Commission, provided key input and information that supported the initiative’s authorization in the 2008 Farm Bill.
On Maryland’s Eastern Shore, pollution from development and agriculture are much-debated issues affecting the Chesapeake Bay's health. But one of the region's most destructive forces is unseen by many: a large, beaver-like rodent that digs out and feeds on the roots of marsh grasses.
Nutria are an invasive species that live in the Delmarva Peninsula's marshes and wetlands. Since their introduction in the 1940s, nutria have eaten through thousands of acres of marshland on the Eastern Shore. Blackwater National Wildlife Refuge in Dorchester County has been especially hard-hit: nutria have destroyed more than half of the marshes there -- nearly 7,000 acres.
Marshes and wetlands are important because they protect clean water by filtering out pollutants and reducing shoreline erosion. They also provide opportunities for outdoor nature activities such as paddling, hiking, hunting and bird-watching.
Additionally, wetland destruction by nutria costs Maryland’s economy $4 million per year in lost environmental services from the degradation of farmland, property, water quality, commercial fisheries and outdoor activities. Recent reports estimate that figure will increase to $30 million per year by 2050 if nutria are left unchecked.
To combat nutria’s destruction of valuable marshland, a group of federal, state and local organizations has come together to eradicate the invasive rodent from the Eastern Shore.
The Maryland Nutria Project began in the late 1990s as the Maryland Nutria Project Partnership, a group of 22 organizations that joined together to investigate the potential to eliminate nutria from Eastern Shore marshes. In 2000, the U.S. Fish and Wildlife Service received federal funding to develop a strategy to eradicate nutria in Maryland.
Today, the Maryland Nutria Project is one of a small handful of highly successful invasive species programs in the United States. Since its work began in 2002, the Project has removed nutria from almost 150,000 acres of wetlands in Caroline, Dorchester, Somerset, Talbot and Wicomico counties.
The Maryland Nutria Project’s trapping efforts were originally concentrated in a 95,000-acre “nutria eradication zone,” which included Blackwater, the state-owned Fishing Bay Wildlife Management Area, the privately owned Tudor Farms, and other nearby private lands.
“Except for monitoring activities, the Project is finished in the nutria eradication zone,” said Dan Murphy, program supervisor with the U.S. Fish and Wildlife Service Chesapeake Bay Field Office. “We are continuing to expand out of Dorchester County into nutria-infested marshes in Caroline, Somerset, Talbot and Wicomico counties.
Marshes have shown a remarkable ability to recover once nutria are removed from an area. But without a continued effort to eradicate them, nutria will re-infest and once again destroy wetlands. The Project must expand its efforts into the remaining five southern Maryland Eastern Shore counties and the Delaware and Virginia portions of Delmarva -- a total of more than 400,000 acres of wetlands.
“The challenge ahead is for the Project to continue to expand into surrounding marshlands while preventing re-infestation of previously trapped habitats on state, federal and private lands,” Murphy said. “This will require the trapping team to work in much larger areas and expand the trapping zone on a much broader front.”
Based on current staffing, progress and field efforts, the Maryland Nutria Project estimates that it will eradicate nutria from the Eastern Shore by 2013. After that time, Project members will continue to monitor marshes and remove any nutria they find.
The Nutria Management Team, led by the U.S. Fish and Wildlife Service Chesapeake Bay Field Office, oversees the nutria eradication project. Other members of the Maryland Nutria Project include:
Learn more about nutria and the Maryland Nutria Partnership from the U.S. Fish and Wildlife Service and the Maryland Department of Natural Resources.
The U.S. Environmental Protection Agency, Office of Inspector General (IG) released on Sept. 10 an evaluation report stating that development growth in the Bay watershed is outpacing Bay restoration efforts. The report was written in response to Congressional requests to evaluate how well the EPA is assisting its Chesapeake Bay partners in restoring the estuary.
The Bay watershed's population is over 16.5 million and growing by more than 170,000 residents annually. The rapid rate of population growth and related residential and commercial development means that this is the only pollution sector in the Bay watershed that is still growing.
In the Bay Program's 2006 Bay Health and Restoration Assessment, it was estimated that increases in pollution due to development have surpassed the gains achieved to date from improved landscape design and stormwater management practices. This estimation from Bay Program scientists has now been corroborated by the IG report.
To combat the increase in pollution from development in the Bay watershed, Bay Program partners are focusing restoration efforts on reducing nutrient and sediment runoff from new development.
Pennsylvania and Virginia have been revising their stormwater regulations.
Maryland Gov. Martin O'Malley recently signed a new stormwater law, and the Maryland Department of the Environment is now working on regulatory actions it will need to put in place to comply with the new Maryland law.
The IG report listed two main recommendations for reducing nutrient and sediment loads from developing lands.
The Chesapeake Bay Program Office director should prepare a strategy to:
Download the full IG evaluation report from the EPA website.
Agricultural practices account for roughly one-quarter of the land use in the Bay watershed. Of that land, approximately 17 percent is devoted to crop production, which contributes significant amounts of nutrients and sediment to the Bay and its tributaries. But an increasing number of farmers in the Bay watershed are turning to a new, more Bay-friendly method of crop production called “no-till” farming.
Traditionally, cropland is fertilized and plowed in the spring to turn over the soil and prepare a good seedbed for planting. However, strong, frequent spring rains cause stormwater to rush across bare crop fields, which do not yet have plants to stabilize the soil and absorb the fertilizer. Excess nutrients and sediment from fertilizers and freshly plowed fields run off into surrounding waterways, eventually winding up in the Bay.
No-till farming, also known as conservation tillage or zero-tillage, leaves the soil undisturbed from the fall harvest to spring planting. Seeds are planted in very narrow slots that are “drilled” into the ground using disk openers, or coulters.
There are many benefits of no-till farming compared with traditional methods, including:
No-till farming is considered such a critical part of Bay restoration that several no-till programs have recently received Chesapeake Bay Targeted Watershed Grants, funded by the National Fish and Wildlife Foundation and the U.S. Environmental Protection Agency. These grants help organizations implement innovative programs to reduce the amount of nitrogen, phosphorous and sediment that flow into the Bay.
In 2006, the Pennsylvania Department of Environmental Protection - in partnership with Penn State Cooperative Extension, USDA's Natural Resources Conservation Service, the Capital Area RC&D Council, the Chesapeake Bay Foundation and the Pennsylvania Environmental Council - received a grant to oversee the conversion of 12,750 acres of cropland to continuous no-till agriculture. This conversion will reduce the annual nitrogen load to the Susquehanna River by over 99,000 pounds, and the annual phosphorous load by over 17,000 pounds.
Farmers and landowners interested in no-till farming can contact their local USDA Natural Resources Conservation Service (NRCS) office for more information.