| | Diet composition and trophic levels of marine mammals |
| | 0,18 | | MB |
| | 15 | | stron |
| | 6605 | | ID | University of British Columbia |
| | 1998 | | rok |
| | Standardized diet compositions were derived for 97 species of marine mammals from published |
| | accounts of stomach contents as well as from morphological, behavioural and other information. |
| | Diet was apportioned among eight categories of prey types (benthic invertebrates, large |
| | zooplankton, small squids, large squids, small pelagic fishes, mesopelagic fishes, miscellaneous |
| | fishes and higher invertebrates). Trophic levels were estimated for each species of marine |
| | mammals and compared with published estimates derived using stable isotope ratios. Trophic levels |
| | ranged from 3.2–3.4 in baleen whales and sea otters, to 3.8–4.4 in most pinnipeds and odontocete |
| | whales, to 4.5–4.6 in killer whales. Such information can be used for ecosystem modelling and |
| | related studies. |