Abundance, dynamics and mortality of the Delaware Bay stock of blue crabs, Callinectes sapidus.

From: Journal of Shellfish Research | Date: January 1, 2005| Author: | Copyright information

ABSTRACT The Delaware Bay stock of blue crabs supports a bistate fishery in New Jersey and Delaware, with annual landings climbing through the 1980s and 1990s to almost 11 x [10.sup.6] pounds (4,390 metric tons) in 1995 and then declining to a recent average of 7 x [10.sup.6] pounds (2,796 metric tons) over the last 5 y. In Delaware, this fishery ranks as number one in value. Landings declines in 1996 spurred efforts to conduct a stock assessment, which is now updated annually. This assessment was based on: (1) a biomass-based minimum recruitment threshold from a Ricker ...

<60 mm CW) to predict what they considered to be age-1 crabs (60-119mm CW) and age 2 crabs (>

<120 mm and adults as crabs with carapace width>

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