Article: Notes on food attraction and the demographics of blue crab (Callinectes sapidus) trapping in Tres Palacios Bay, Texas.

Abstract.-The null hypothesis that blue crabs which enter typical commercial-style baited traps are random draws from populations with equal sex ratios and physical characteristics was evaluated. Trap demographic data (sex, size and number of crabs) were collected during ten single-day trials comprising six traps each (n = 60) over a 3-week period in April 2006. These data indicate that blue crabs tend to be caught in same-sex assemblages more frequently than expected by chance, and that males caught in crab traps have different width-weight ratio trajectories than do females. Interestingly, blue crabs in Tres Palacios Bay are more readily attracted to remains of fish that ...

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