Weinberg: Rockfish assemblages off Oregon and Washington 



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Table 3 



Major species groups (1-3) of rockfish (Scorpaenidae) determined by recurrent group analysis by survey and for all 

 surveys combined. Depth (m) and catch per unit of effort (CPUE, kg/ha) statistics refer to samples when all species 

 listed in the group cooccurred. The group mean catch is also presented as the percent of the total average rockfish 

 catch in those hauls. See Table 1 for scientific names. 



Species 



1977 



1980 



His:! 



1986 



19.H9 



1992 



All years 



Shortspine thornyhead 

 Pacific ocean perch 

 Splitnose rockfish 

 Darkblotched rockfish 

 Redbanded rockfish 

 Canary rockfish 

 Yellowtail rockfish 

 Greenstriped rockfish 

 Sharpchin rockfish 

 Rosethorn rockfish 

 Redstripe rockfish 



Depth and catch statistics 



Group 1 



Group 2 



Group 3 



1977 

 Occurrences 

 Mean depth (range) 

 Mean group CPUE (range I 

 Proportion of total CPUE (%) 



1980 

 Occurrences 

 Mean depth (range I 

 Mean group CPUE (range) 

 Proportion of total CPUE (%) 



1983 

 Occurrences 

 Mean depth (range) 

 Mean group CPUE (range) 

 Proportion of total CPUE (%) 



1986 

 Occurrences 

 Mean depth (range) 

 Mean group CPUE (range) 

 Proportion of total CPUE ( r i ) 



1989 

 Occurrences 



Mean depth (range) 

 Mean group CPUE (range) 

 Proportion of total CPUE (%) 



1992 

 Occurrences 

 Mean depth (range) 

 Mean group CPUE (range) 

 Proportion of total CPUE (%) 



All years 

 Occurrences 

 Mean depth (range) 

 Mean group CPUE (range) 

 Proportion of total CPUE (% ) 



