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Зоопланктон литоральной зоны озер структурные динамические и функциональные показатели.

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574.583
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© 2006
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239
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. . 8,
1.
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, 1987.
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2.
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2006.
3.
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., 2006.
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1.
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5.
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, 2006.
6. Burk R.L. et al. Diel horizontal migration of
zooplankton: cost and benefits of inhabiting in the
littoral // Freshwater Biol. 2002. Vol. 47.
7. Gliwicz Z.M. Between Hazards of Starvation and
Risk of Predation: The Ecology of Offshore
Animals // Excellence in Ecology. 2003. Vol. 12.
8. Jacobsen L. et al. Interactions between piscivores,
1, 2006
zooplanktivores and zooplankton in submerged
macrophytes: preliminary observations from
enclosure and pond experiments // Hydrobiol.
1997. Vol. 342/343.
9. Lauridsen T.L., et al. The importance of
macrophyte bed size for cladoceran composition
and horizontal migration in a shallow lake // J.
Plankton. Res. 1996. Vol. 18.
10. Lauridsen T. L., Lodge D. Avoidance by Daphnia
magna fish and macrophytes: chemical cues and
predator-mediated use of macrophyte habitat //
Limnol. Oceanogr. 1996. Vol. 41.
11. Moss B., Kornijow R., Measey G.J.. The effects
of nymphaeid density and predation by perch on
the zooplankton communities in a shallow lake //
Freshwater Biol. 1998. Vol. 39.
12. Timms R.M., Moss B. Prevention of growth of
potentially dense phytoplankton population by
zooplankton grazing in the presence of
zooplanktivorous fish, in a shallow wetland
ecosystem // Limnol. Oceanogr. 1984. Vol. 29.
13. White M. D. Horizontal distribution of pelagic
zooplankton in relation to predation gradients //
Ecography. 1998. Vol. 21, 1.
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abundance in mountain lakes: shore avoidance or
fish predation // J. Plankton. Res. 1999. Vol. 21,
10.
ZOOPLANKTON OF THE LAKES LITTORAL ZONE: STRUCTURAL, DYNAMIC
AND FUNCTIONAL PARAMETERS
© 2006 V.P. Semenchenko
Institute of zoology of National academy of sciences of Byelorussia, Minsk, Byelorussia
Distribution, daily variability and influence of various species of macrophytes on the communities structure
of cladoceran zooplankton in lakes littoral zone are considered. It is established, that the variability of
structural parameters of zooplankton reduces as the depth increases, and large species of cladocer have the
highest daily coefficients of number variation. Daily horizontal migrations of zooplankton are mainly caused
by fish press. However the influence of predatory zooplankton and trophic factor on horizontal migrations is
obscure. Expressiveness of horizontal migrations of zooplankton decreases together with the depth, and the
effect of «coast avoidance» is basically observed at the large species of zooplankton and caused by both fish
press and another factors. Essential distinctions are observed in the ratio of zooplankton functional groups in
different types of littoral zones. The specific role of planktobenthos cladocer species with an active filtration
device decreases in succession series of lakes. It is emphasized, that the weak scrutiny of the lakes littoral
zone gives different explanations of various interrelations in the zooplankton community and processes
dynamics.
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показатели, функциональная, зоопланктон, зоны, структурная, динамическое, озера, литоральной
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