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Effect of Filter‐feeding Zooplankton on Phytoplankton in Fish Ponds
Author(s) -
Vyhnálek Vojtêch
Publication year - 1983
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19830680312
Subject(s) - zooplankton , phytoplankton , plankton , aphanizomenon , biology , nutrient , fish <actinopterygii> , zoology , fishery , environmental science , ecology , cyanobacteria , bacteria , anabaena , genetics
The effect of filter‐feeding zooplankton on phytoplankton was investigated in two fish ponds near Blatná (southwestern Bohemia, Czechoslovakia) using enclosures of 50 liters volume. Filter‐feeding activity had a positive effect on the growth of individual net phytoplankton (> 40 μm) species except for Aphanizomenon flos‐aquae and Melosira granulata. Except for Schroederia setigera nanoplankton species (< 40 μm) were suppressed by the filter‐feeding zooplankton. In bags without zooplankton the addition of nutrients induced growth of nanophytoplankton species, but no significant differences were noted in bags with zooplankton.