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Bay Blog: Atlantic sturgeon

Jan
31
2012

Atlantic sturgeon in Chesapeake Bay officially declared endangered

The federal government has officially declared the Chesapeake Bay’s Atlantic sturgeon – a bony, ancient-looking fish that has been around since dinosaurs roamed the earth – an endangered species.

Atlantic sturgeon

(Image courtesy Virginia Institute of Marine Science)

NOAA Fisheries Service officially listed the Bay’s Atlantic sturgeon population under the federal Endangered Species Act. The endangered listing will prompt action to help reduce bycatch of sturgeon and other species by commercial fisheries. It is already illegal to fish for, catch or keep Atlantic sturgeon.

Atlantic sturgeon is a slow-growing fish that relies on the Chesapeake Bay and other estuaries to spawn. Historic fishing records indicate that sturgeon used to be abundant. However, increased demand for sturgeon caviar in the late 19th century combined with damming and pollution led to a population collapse.

For more information about the endangered species listing, visit NOAA Fisheries Service’s website.



Sep
22
2011

Scientists suspect multiple yearly spawning runs for Atlantic sturgeon in James River

Scientists are examining the possibility that Atlantic sturgeon – a prehistoric fish whose population is so low that it may be listed as an endangered species – may spawn more than once per year in the James River.

Atlantic strugeon (image courtesy Virginia Institute of Marine Science)

In early September, biologists with Virginia Commonwealth University captured a female sturgeon leaking eggs near the confluence of the Appomattox and James rivers. This area may be a place where migrating fish adjust to less salty water before moving upstream to spawn.

If the Atlantic sturgeon is placed on the federal Endangered Species List, the multiple spawning run discovery could increase the amount of time that spawning-age fish are protected each year.

Read this article from the Bay Journal to learn more about Atlantic sturgeon on the James River.

Image courtesy Virginia Institute of Marine Science



Oct
27
2010

Chesapeake Bay Atlantic Sturgeon Proposed for Endangered Species List

The Atlantic sturgeon – a rare, ancient-looking fish that supported an important 19th century fishery in the Chesapeake Bay region – has been proposed by NOAA Fisheries Service to be protected under the federal Endangered Species Act.

Atlantic sturgeon have existed since the Cretaceous period, when dinosaurs roamed the earth. They are large fish with brownish bodies covered in bony plates. They visit the Chesapeake Bay in spring to spawn in fresh water. Sturgeon likely used to spawn in all of the Bay’s tributaries, but today only the James and York rivers in Virginia have small spawning populations.

Records indicate that Atlantic sturgeon were once abundant. The fish supported an important 19th century fishery when their eggs became popular as caviar. The commercial fishery peaked in 1870 but collapsed by 1901, when landings were just 10 percent of the peak.

All Atlantic coast states completely banned Atlantic sturgeon fishing in 1998, but sturgeon are still extremely rare. According to a federal review in 2007, Atlantic sturgeon are usually harmed by unintentional catch, vessel strikes and dredging, as well as by polluted water and damming of rivers.

The purpose of listing species as “endangered” is to offer special protections designed to prevent the species from becoming extinct.

Another Chesapeake Bay sturgeon, the shortnose sturgeon, is already on the endangered species list.

The Gulf of Maine, New York Bight, Carolina and South Atlantic populations of Atlantic sturgeon are also included in this proposal.

Citizens can comment on NOAA’s proposed listing by Jan. 4, 2011.



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