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Annual dynamics and production of rotifers in an eutrophication gradient in the Baltic Sea

✍ Scribed by Sif Johansson

Publisher
Springer
Year
1983
Tongue
English
Weight
329 KB
Volume
104
Category
Article
ISSN
1573-5141

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✦ Synopsis

Spatial and temporal fluctuations in rotifer abundance have been monitored along atrophic 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 . Hydrobiologia 104, 335-340 (1983) .

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