The ecology of Synchaeta kitina Rousselet in Loch Leven,Scotland |
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Authors: | May Linda Bailey-Watts A.E. Kirika A. |
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Affiliation: | (1) Institute of Freshwater Ecology, Edinburgh Laboratory, c/o Institute of Terrestrial Ecology, EH26 0QB Midlothian, Bush Estate, Penicuik, Scotland, UK |
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Abstract: | Synchaeta kitina Rousselet reached population densities of up to 5000 ind.l–1 in Loch Leven, between January 1977 and December 1982. The species was found over the entire range of temperatures recorded (0.4–21.4 °C), but was most abundant at temperatures above 7 °C. Embryo development times, determined under laboratory conditions, ranged from 122 h at 2 °C to 12.5 h at 20 °C. There was a marked inverse relationship between populations of S. kitina and Daphnia hyalina var. lacustris in the loch. It seems unlikely that this was due to interference competition from Daphnia. S. kitina can be cultured on Rhodomonas minuta var. lacustris and there is some evidence that this rotifer also feeds on small flagellates in its natural environment. |
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Keywords: | Rotifera Synchaeta Loch Leven population dynamics interference competition embryo development time |
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