The abundance of spawning-age female blue crabs in the Chesapeake Bay increased to 101 million in 2015, compared to 68.5 million in 2014. This number is above the 70 million overfishing threshold but below the 215 million target abundance.
Why are blue crabs important to the Chesapeake Bay? Bruce Vogt from the National Oceanic and Atmospheric Administration (NOAA) explains the iconic crustacean’s economic, ecologic and gastronomic value. Learn more about blue crabs in the Chesapeake Bay Program’s online Field Guide.
April 2013: The Chesapeake Bay winter dredge survey is an annual count of the Bay’s blue crab population, and a critical component of blue crab management. The information gathered on abundance, young-of-the-year and spawning stock—those crabs that will mature enough to reproduce during the upcoming year—allows fisheries managers to set commercial and recreational harvest limits for the season ahead.
Closed captions: http://www.youtube.com/watch?v=28mvEE7ydXA
Perhaps no species is more closely associated with the Chesapeake Bay than the blue crab. Blue crabs support commercial and recreational fisheries across the region, but poor water quality, habitat loss, harvest pressure and natural predation affect their continued health. Blue crab population levels inform how harvest regulations should or shouldn’t change if we are to maintain a sustainable blue crab stock.
The Chesapeake Bay Program has a target abundance of 215 million spawning-age female blue crabs, adopted in 2011.
Maryland, Virginia and the Potomac River Fisheries Commission manage blue crabs in the Chesapeake Bay. This indicator tracks spawning-age female blue crab abundance in relation to targets and thresholds recommended by the 2011 Blue Crab Benchmark Stock Assessment and adopted by management jurisdictions in December of 2011. Previously, this indicator tracked total adult abundance and harvest (males and females) in relation to interim targets and thresholds for that population.
According to the 2015 Chesapeake Bay Blue Crab Advisory Report, the Bay’s blue crab population is not overfished and overfishing is not occurring. This report highlights the current status of the blue crab population and recommends continued work to sustain robust crab populations over the long term.
The report was developed by the Chesapeake Bay Stock Assessment Committee (CBSAC), which includes scientists and representatives from the federal government, state governments and academic institutions. It is based on data collected in the Baywide Blue Crab Winter Dredge Survey (a cooperative effort between Maryland and Virginia) and on annual estimates of blue crab harvest. The report recommends:
National Oceanic and Atmospheric Administration (NOAA)
NOAA Chesapeake Bay Office