𝔖 Bobbio Scriptorium
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Effect of Filter-feeding Zooplankton on Phytoplankton in Fish Ponds

✍ Scribed by Vojtêch Vyhnálek

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
770 KB
Volume
68
Category
Article
ISSN
1434-2944

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✦ Synopsis

The effect of filter-feeding zooplankton on phytoplankton was investigated in two fish ponds near BlatnB (southwestern Bohemia, Czechoslovakia) using enclosures of 50 liters volume. Filterfeeding activity had a positive effect on the growth of individual net phytoplankton ( > 40 pm) species except for Aphanizomenon flos-aquae and Melosira granulata. Except for Schroederia setigera nanoplankton species (<40 pm) were suppressed by the filter-feeding zooplankton. I n bags without zooplankton the addition of nutrients induced growth-of nanophytoplankton species, but no significant differences were noted in bags with zooplankton.

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