Black Sea Bass

Juvenile Black Sea Bass Black Sea Bass are protogynous hermaphrodites, being born as females but switching to males as they mature. Adults, which inhabit areas with structure like wrecks or pilings, are infrequently encountered by the survey. Juveniles are collected more regularly, although seldom in large numbers. Black Sea Bass are diurnal feeders, with juveniles feeding on small crustaceans and adults feeding on bivalves, fish and crabs.

Black Sea Bass Twenty-seven Black Sea Bass were captured at a station in November 2011. They ranged in size from 142-241 millimeters (5.6-9.5 inches).

This species first recruits to the survey gear in August.
The Young-of Year cutoff values are:
- August: 0-70 mm.
- September: 0-85 mm.
- October: 0-100 mm.
- November: 0-105 mm.
- December: 0-110 mm.
- January: 0-110 mm.
- February: 0-110 mm.
- March: 0-110 mm.
- April: 0-110 mm.
- May: 0-110 mm.
- June: 0-150 mm.
- July: 0-175 mm.
YOY Index months are in bold.
The index is for Young-of-Year fish, but using survey months in the year following the year of spawning.
Stations in all the Chesapeake Bay strata and the lower James River strata are used for the index.

Data collected after the transition to a new vessel and net (June 2015) have been adjusted by a species-specific calibration factor. Note we were unable to calculate an index for 2020 because of a pause in sampling due to COVID-19.

Black Sea Bass Excel file

For more information on how this species is managed please visit the ASMFC website.