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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1857

Bruno Berzins and Birger Pejler; Rotifer occurrence in relation to pH. Hydrobiologia 147:107-116, 1987

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Information on the distribution of more than 225 species of planktonic, periphytic, and benthic rotifers from diverse waters in south and central Sweden was analyzed for pH preference. No particularly strong correlation was found between pH and any other environmental factor, with regards to rotifer distribution. However, species indicating oligotrophy generally have their pH optima at or below 7.0, while those indicating eutrophy occur at or above this level. Rotifers found in acidic water are often non-planktonic or semiplanktonic.