Abstract
Spatial and temporal fluctuations in rotifer abundance have been monitored along a trophic gradient in the northern Baltic. The most common rotifer was Synchaeta spp., which had one abundance peak in June and one in September–October. Only during the latter period was the abundance significantly higher in the eutrophic basin compared to the reference area. The annual production of Synchaeta spp. was about double in the eutrophic basin. A positive correlation between Synchaeta spp. biomass and phytoplankton biomass was obtained during the autumn, but not during the early summer peak, although the phytoplankton community was dominated by the same species. Keratella quadrata, K. cochlearis and K. cruciformis were most abundant in August–September, and all three species had increased abundance in the eutrophic basin.
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Johansson, S. (1983). Annual dynamics and production of rotifers in an eutrophication gradient in the Baltic Sea. 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_43
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DOI: https://doi.org/10.1007/978-94-009-7287-2_43
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