Abstract
The in situ clearance rates of several rotifer species from a small, temperate eutrophic lake were measured using three radioactive tracer cell-types, a bacterium (Aerobacter), a yeast (Rhodoto-rula), and alga (Chlamydomonas). Rates were below 10 µl/anim/h but varied significantly among species. Keratella cochlearis, Kellicottia bostoniensis, and Conochilus dossuarius ingested all three tracer cells but rates varied substantially with tracer cell-type. Polyarthra dolichoptera and P. euryptera ingested only the algal cells. Co-occurring forms of K. cochlearis and species of Polyarthra differed markedly in size and in tracer cell utilization, indicating niche diversification in food resources.
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Bogdan, K.G., Gilbert, J.J. & Starkweather, P.L. In situ clearance rates of planktonic rotifers. Hydrobiologia 73, 73–77 (1980). https://doi.org/10.1007/BF00019428
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DOI: https://doi.org/10.1007/BF00019428