508 



Fishery Bulletin 103(3) 



63% had less than 20% cod. These trawl vessels were 

 targeting fish species other than Pacific cod, such as rock 

 sole, and caught some cod (as bycatch) in the process. 

 The distribution of hauls that had greater than 20% 



cod (by 10% bins) was relatively flat, varying only from 

 4% to 7% between bins and having no clear threshold 

 or breakpoint. Use of a low threshold proportion of cod 

 (such as 20%) would likely include some hauls in which 



Table 3 



Catch and effort statistics for Pacific cod fisheries in the southeastern Bering sea by strata (Fig. 1) in January-April 2001. 

 Statistics include total catch estimates (in metric tons (t); all gear and fisheries), observed catch by all fisheries (by gear type), 

 and observed catch and effort by fisheries targeting Pacific cod (by gear type). Three levels of Pacific cod catches from trawl gear 

 are listed and are based on the minimum proportion of cod in each haul. 



Strata 



East of 

 sampling area 



High sampling 

 effort 



Low sampling 

 effort 



South of 

 sampling area Total 



Catch 



Total catch 



Observed catch — all fisheries 



Trawl 



Pot 



Longline 



Total 

 Observed catch — Pacific cod fisheries 



Trawl (20% cod in each haul) 



Trawl (40% cod in each haul) 



Trawl (60% cod in each haul) 



Pot 



Longline 



Effort 



Trawl (hours; 20% cod in each haul) 

 Trawl (hours; 40% cod in each haul) 

 Traw] (hours; 60% cod in each haul) 

 Pot (number of pots) 

 Longline (no. of hooks) 



7691 



17,875 



1,200 



3724 



30,491 



