Conceptual diagram of trap dynamics as observed with a crab trap video (CTV) camera system. Percentage values are means of data from Table 1. Of the blue crabs (Callinectes sapidus) that approached the pots, 80% avoided them and 20% entered them. Of the 20% that entered the pots, 85% escaped and 15% were caught. Of the 85% that escaped, 98% of the escapes occurred for blue crabs that entered the kitchen section only and 2% of the escapes were for blue crabs that entered the parlor. Overall, pots retained only 3% of all crabs that approached and entered the pots; the dashed curve line shows the final catch for those crabs that approached the pots.