BRODEUR and PEARCY: FOOD HABITS AND DIETARY OVERLAP OF SOME SEBASTES 



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_ 80 



_120 



_160 



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FIGURE 11. — Smoother bottom profile made during a tow showing the "haystacks" of rockfish in close association with the bottom and 



possibly preying upon the food organisms (arrow) directly above them. 



of organisms which feed in varying degrees on 

 euphausiids. Other pelagic predators in this study- 

 area known to feed intensively on euphausiids 

 include Pacific hake (Alton and Nelson 1970), 

 myctophids (Tyler and Pearcy 1975), juvenile 

 salmon (Peterson et al. 1982), and squid (Karpov 

 and Cailliet 1978). Standing stocks and production 

 rates of euphausiids in northern latitudes may be 



of such magnitude that many predators often 

 subsist on them in coexistence rather than com- 

 pete for other more limited resources. More re- 

 search is needed on the biology and distribution of 

 these abundant prey species and their importance 

 to fishery resources. In complex, multispecies 

 fisheries such as those utilizing rockfishes, it may 

 be possible to treat several species with similar 



291 



