Abstract
Clearance rates of three sessile and four free-swimming rotifer species from a small acid bog-pond were measured using in situ techniques. Three radioactively labeled cell types, an alga (Chlamydomonas), a bacterium (Enterobacter = Aerobacter), and a yeast (Rhodotorula) were used as tracers. Clearance rates (using yeast) ranged from <1.0 to >250 µ1 • animal-1 • h-1 depending on species. Ptygura crystallina, Ptygura pilula, Floscularia conifera, and an unidentified bdelloid ingested all three foods with substantial variation in clearance rates among species and cell type. There was an insignificant error (<0.3%) in clearance rate associated with non-ingestive uptake of radioactivity. Among the free-swimming taxa, Lecane sp. had a clearance rate of <0.5 µ1 • animal-1 • h-1 on yeast, while another Lecane sp. and Trichotria tetractis did not ingest that cell type.
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© 1983 Dr W. Junk Publishers, The Hague
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Wallace, R.L., Starkweather, P.L. (1983). Clearance rates of sessile rotifers: In situ determinations. In: Pejler, B., Starkweather, R., Nogrady, T. (eds) Biology of Rotifers. Developments in Hydrobiology, vol 14. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7287-2_51
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DOI: https://doi.org/10.1007/978-94-009-7287-2_51
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