Abstract
Density and size structure changes of natural daphniids populations were studied in enclosures with a different level of fish predation. Daphnia pulicaria was totaly removed in high predation variants, and the differences of the mean body length both in adults and juveniles are apparent between low predation enclosure and enclosure without fish. Daphnia galeata was replaced by D. magna and D. pulicaria in the enclosure without fish. The decline of densities and the substantial (30–50%) and fast (during 12 days) shift of mean body length both in adults and juveniles of D. galeata was induced by the fish (carp fry) introduction to the high predation enclosures.
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© 1991 Springer Science+Business Media Dordrecht
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Černý, M., Bytel, J. (1991). Density and size distribution of Daphnia populations at different fish predation levels. In: Kořínek, V., Frey, D.G. (eds) Biology of Cladocera. Developments in Hydrobiology, vol 71. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0918-7_19
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DOI: https://doi.org/10.1007/978-94-017-0918-7_19
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