Black Sea Bass

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     Black Sea Bass are protogynous hermaphrodites, being born as females but reversing to males as they get larger. Adults, which prefer to inhabit areas with structure such as 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 preferring bivalves, fish, and crabs.  
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     Although the survey typically does not encounter many adult Black Sea Bass, twenty-seven individuals were captured at this station in November 2011. These fish ranged in size from 142-241 mm (5.6-9.5 in.).  
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Standard File

  • 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 and are denoted in gray. 

Black Sea Bass Excel file