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Kapcsolat
Impact of juvenile cyprinid fish predation on the food availability and zooplankton community |
Tartalom: | http://www.schweizerbart.de//publications/detail/isbn/978... |
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Archívum: | MTA Könyvtár |
Gyűjtemény: |
Status = Published
Type = Conference or Workshop Item |
Cím: |
Impact of juvenile cyprinid fish predation on the food availability and zooplankton community
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Létrehozó: |
Tátrai, István
Padisák, Judit
Aschot, Simonian
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Kiadó: |
Schweizerbart'sche Verlagsbuchhandlung
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Dátum: |
1991
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Téma: |
QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
QH301 Biology / biológia
QH540 Ecology / ökológia
QK Botany / növénytan
QL Zoology / állattan
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Tartalmi leírás: |
In freshwater pelagic systems predators limit prey populations. Several studies suggest that at the top of the food web piscivores can have a strong, negative impact on planktivores (Stewart et al. 1981, Van Densen 1985). At the next level in the food web planktivores have a major impact on the size structure and species composition of zooplankton communities (Hrbacek 1962, Hall et al. 1976, Vijverberg & Richter 1982).
The effects of food web manipulations on phytoplankton dynamics are not always evident (Dorazio et al. 1987). Starvation and/or predation may eliminate any possibility of grazer control of algal populations (McQueen & Post 1988). Since copepods dominate the zooplankton in Lake Balaton during summer (Zánkai & Ponyi 1986) and exhibit much lower grazing rates then Daphnia-dominated assemblages in other lakes, we decided to determine experimentally if the zooplankton in eutrophic Lake Balaton were capable of controlling phytoplankton biomass in the offshore region of the lake. |
Típus: |
Conference or Workshop Item
NonPeerReviewed
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Formátum: |
application/pdf
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Azonosító: |
Tátrai, István and Padisák, Judit and Aschot, Simonian (1991) Impact of juvenile cyprinid fish predation on the food availability and zooplankton community. In: Congress in Munich 1989, 1989, München, Germany.
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Kapcsolat: |