FISHERY BULLETIN: VOL 82, NO. 2 



life histories and which prey on similar resources 

 as a biological unit for management purposes. 



ACKNOWLEDGMENTS 



We are indebted to the many individuals who 

 assisted with the collection of the stomach sam- 

 ples and in particular to Mary Yoklavich and Ray 

 Taylor of Oregon State University, Bill Barss and 

 Steve Johnson of the Oregon Department of Fish 

 and Wildlife (ODFW), and numerous scientists 

 at the Northwest and Alaska Fisheries Center 

 (NWAFC) Seattle Laboratory. We thank Bob 

 Demory of ODFW and Tom Dark of NWAFC for 

 allowing us to participate on their research 

 cruises and George Boehlert, Carl Bond, and an 

 anonymous reviewer for their helpful criticisms 

 on the manuscript. This study was funded by 

 Contract No. 81-ABC-00192 from the NWAFC, 

 National Marine Fisheries Service. 



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