| Autor: |
Tátrai, István, Lammens, Eddy H., Breukelaar, André W., Klein Breteler, Jan G. P. |
| Zdroj: |
Archiv für Hydrobiologie; October 1994, Vol. 131 Issue: 3 p309-320, 12p |
| Abstrakt: |
The effects of predation by mature cyprinid fish on the composition, biomass and seasonal dynamics of macroinvertebrate biomass were investigated in fishpond experiments. Different sized adult bream (Abramis brama L.) and carp (Cyprinus carpio L.) were stocked at different densities. Benthivores were forced to feed on benthos by introduction of planktivorous perch (Perca fluviatilis L.) fry. Total dry biomass of benthic macroinvertebrates was not clearly reduced neither by large nor by small bream stockings. Carp significantly reduced the biomass of total benthos. Some members of the benthos might be influenced by fish only indirectly contributing to formation of new microhabitats preferred by these invertebrates. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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