Main Content

The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1954

Heidi Berner-Frankhauser; The influence of sampling strategy on the apparent population dynamics of planktonic rotifers. Hydrobiologia 147:181-188, 1987

Reprint

In File

Notes

Rotifer composition and density, chlorophyll-a content, secchi depth and temperature were investigated with high sampling frequency (every third day in summer, weekly in winter) in the eutrophic lake Bielersee from April 1981 to April 1982. Long intervals between sampling, especially from spring to autumn, lead to contradictory interpretation of abundance dynamics of both total rotifer community and single species. Short intervals between sampling revealed a sequence of mass developments of the different species. As an example, alternating gradation phases are shown for Synchaeta grandis and Synchaeta stylata.