Weinberg et al.: Capture probabhty of a survey trawl for Paralithodes camtschaticus 



745 



selectivity curves for males and females with model 1, 

 we found the summed AIC for separate curves to be 

 lower than the AIC for sexes combined. Consequently, 

 separate selectivity curves were estimated for males 

 and females (Table 2). 



The fitted model predicted male capture probabil- 

 ity to be 41.9% at 23 mm (size of the smallest male 

 observed); 72.2% at 95 mm (size at which full vulner- 

 ability to the survey trawl is assigned in the current 

 management model); 80.2% at 120 mm (size assigned 



