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A fish population (carp fry) increases the abundance and the duration of occurrence of plankton rotifers during the four months growing season of the ponds. This is due to the increase in the abundance of detritus and bacterioplankton due to transformation of the pond habitat by fish. Within the Rotifera fauna, the fish population increases the abundance of two small species of Rotifera: Keratella cochkaris (Gosse) and K. quadrata (O. F. Müller). Fish culture in the ponds results in the littoral species of Rotifera disappearing as the result of the elimination of mosaic character of the littoral habitat.
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Projects co-financed by:
Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.