TitlePrey of pinnipeds at selected sites in Oregon identified by scat (fecal) analysis, 1983-1996
Publication TypeReport
Year of Publication1997
AuthorsRiemer, Susan D., and Robin F. Brown
Corporate AuthorsOregon. Department of Fish and Wildlife. Marine Region, and Oregon. Wildlife Diversity Program,,
Secondary TitleTechnical Report (Oregon. Wildlife Diversity Program)
Volumeno. 97-6-02
Pagination34 p.
InstitutionOregon Dept. of Fish and Wildlife. Marine Region
CityNewport, Or.
Call NumberOSU Libraries: Valley QL737 .P6 R541 1997, Guin QL737 .P6 R541 1997
KeywordsCascade Head, Salmon River, Siletz River, Umpqua River Estuary, Harbor seal = Phoca vitulina, California sea lion = Zalophus californianus, Steller sea lion = Eumetopias jubata, feeding behavior, predation, aquatic mammals, statistical analysis
NotesThis publication covers 14 years of analysis of pinniped feces to determine what the seals and sea lions were eating. 44 species of fish and cephalopod were identified out of over 1,000 samples. “ … [P]innipeds preyed heavily on schooling fishes, such as Pacific whiting and Pacific mackerel for sea lions, and on smelt and herring for harbor seals. Other species such as rockfish, lamprey, salmonids and flatfish were also commonly taken by pinnipeds. The variability in prey selection appears to be related to the availability (seasonality) and abundance of prey species at a given location” (from the Abstract).