Title | Food Habits and Dietary Adaptation of the English Sole (Parophrys vetulus) in a Recently Disturbed Habitat |
Publication Type | Thesis |
Year of Publication | 1986 |
Authors | Marks, Dennis Keith |
Secondary Title | Dept. of Biology |
Volume | M.S. |
Pagination | 77 p. |
University | University of Oregon |
City | Eugene, Or. |
Call Number | OSU Libraries: Digital Open Access |
Keywords | diet, English sole = Parophrys vetulus, feeding behavior, jetties, physical modifications, salinity, sedimentation, Training jetty, Umpqua River estuary, water temperature |
Notes | This Master’s thesis examines the changes in diet of English sole in an area affected by the construction of a jetty. In 1980, the training jetty in the Umpqua River entrance was extended to control cross-currents. Before construction, the area was dynamic and strongly affected by riverine flows. After the jetty was built, the area had much less wave action, had more sedimentation, and salinity was much higher. As the environment changed, did the diet of English soles change? The author examined sole stomach contents over the period of 1980-1982 to find out. “Excepting amphipods and nematodes, which were largely absent probably because of their small size, all invertebrate taxa were represented in the sole stomachs in roughly the same proportions as observed in the changing sediment samples, demonstrating a low degree of food selectivity and a corresponding high capacity for dietary adaptation.” (from the Abstract) |
URL | https://scholarsbank.uoregon.edu/xmlui/handle/1794/9446 |