TY - GEN N1 - Pages 617-644 : illustrations ; 24 cm N1 - Bibliographical references (page 642-644) N1 - Abstract in Polish N2 - In the lakes under study the pressure of planktivorous fish is not a factor causing changes in the quantifiable and structural characteristics of the zooplankton. Neither is the action of invertebrate predators. The results, obtained from the study indicate that the possible causes of changes in the zooplankton numbers, biomass and structure should be found on the one hand in changes in the size structure and biomass of the phytoplankton, and on the other – in the nature of the relationship between the phytoplankton and zooplankton. L1 - http://rcin.org.pl/Content/70171/PDF/WA058_87285_P2840-T33_Eko-Pol-A-Nr-4.pdf M3 - Text J2 - Modifying effect of biotic agents J2 - Pelagic zooplankton variation PY - 1986 IS - 4 EP - 644 KW - lakes KW - zooplankton KW - Rotatoria KW - Crustacea KW - eutrophication KW - zooplankton grazing KW - invertebrate predators KW - fish pressure A1 - Karabin, Andrzej A2 - Polska Akademia Nauk. Instytut Ekologii PB - Polish Scientific Publishers VL - 33 CY - Warszawa SP - 617 T1 - Pelagic zooplankton (Rotatoria + Crustacea) variation in the process of lake eutrophication. 2, Modifying effect of biotic agents UR - http://rcin.org.pl/dlibra/publication/edition/70171 ER -