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From the data of copepod surveys made in 1962 - 1963, 1974 - 1975 and 1979 - 1991 at stations I and II in Lake Donghu, Wuhan, the atuthors analyse the changes in species composition, standing crop of copepods. The number of copepod species decreased from 14 species in 1960's to 7 in 1990's, but the species composition became similar between the two stations. The standing crop of copepods was largely...
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