| Title | Abundance, Movements and Feeding Habits of the Harbor Seal, Phoca vitulina, at Netarts Bay, Oregon |
| Publication Type | Thesis |
| Year of Publication | 1980 |
| Authors | Brown, Robin Franklin |
| Academic Department | School of Oceanography |
| Degree | M.S. |
| Pagination | 69 p. |
| Date Published | 1980 |
| University | Oregon State University |
| City | Corvallis, OR |
| Type of Work | Masters Thesis |
| Call Number | OSU Libraries: Internet Resources LD4330 1981 .B7, Guin Brown 1981, Digital Open Access |
| Keywords | chum salmon = Oncorhynchus keta, feeding behavior, Harbor seal = Phoca vitulina, marine mammals, Netarts Bay, Pacific sand lance = Ammodytes hexapterus, spatial distribution, temporal distribution, theses, Tillamook Bay |
| Notes | Analyzed 149 scat samples between August, 1977 and May, 1979. Found harbor seals ate at least 24 species of fish. Pacific sand lance was the most common species consumed. Estimated harbor seals may have consumed 9.1% of the 1978 chum salmon return in Netarts Bay. Seasonal abundance was tracked by recording animals at haul-out sites. Netarts Bay seals have "low winter abundance, followed by increases through the spring (pupping) and summer (molting) to a peak in the late fall-early winter..." (from the Abstract) The peak coincided with the return of chum salmon to the bay. 11 seals tagged with radio-transmitters to show movements. Movement between Tillamook and Netarts Bays was common. One animal made at least 2 round trips between the bays. Major professor was Bruce Mate. |
| URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/kh04ds353 |
| Label | 670 |
