Title | Prey of pinnipeds at selected sites in Oregon identified by scat (fecal) analysis, 1983-1996 |
Publication Type | Report |
Year of Publication | 1997 |
Authors | Riemer, Susan D., and Robin F. Brown |
Corporate Authors | Oregon. Department of Fish and Wildlife. Marine Region, and Oregon. Wildlife Diversity Program,, |
Secondary Title | Technical Report (Oregon. Wildlife Diversity Program) |
Volume | no. 97-6-02 |
Pagination | 34 p. |
Institution | Oregon Dept. of Fish and Wildlife. Marine Region |
City | Newport, Or. |
Call Number | OSU Libraries: Valley QL737 .P6 R541 1997, Guin QL737 .P6 R541 1997 |
Keywords | Cascade 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 |
Notes | This 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). |