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Hydrobiological Journal
SJR: 0.217 SNIP: 0.575 CiteScore™: 0.24

ISSN Druckformat: 0018-8166
ISSN Online: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v54.i3.60
pages 60-74

Influence of Heated Waters Discharge on Zooplankton of Various Cooling Ponds of Nuclear Power Stations

D. V. Kulakov
Institute of Geoecology Russian Academy of Sciences Saint-Petersburg, Russian Federation
M. Ye. Makushenko
Institute of Geoecology Russian Academy of Sciences Saint-Petersburg, Russia
Ye. A. Vereshchagina
Saint-Petersburg State University Saint-Petersburg, Russian Federation


In two various cooling ponds of nuclear power stations located within various catchment areas differing in their hydrographic characteristics and zooplankton composition, plankton invertebrates differed in their response to technogenic influence. In Koporskaya Bay of the Gulf of Finland, the discharge of heated waters of the Leningrad Nuclear Power Station resulted in the decrease in the quantitative indices of zooplankton. In the cooling pond of the Beloyarsk Nuclear Power Station on the Pyshma River, heated waters discharge resulted mainly in the increase in the numbers and biomass of plankton invertebrates. In both studied water bodies, heated waters discharge resulted in the decrease in the total number of zooplankton species. Pelagic species with a wide or worldwide distribution prevailed in terms of their numbers and biomass.