| Summary: | Abstract Dr Alexis J. Conides is an aquaculture researcher at the National Centre for Marine Research, GR-166 04 Hellinikon, Athens and Professor of Aquaculture at the Department of Agriculture, Crop and Animal Production, University of Thessalia, Volos, Greece. This study aims to examine ecological affinities in Lake Koumoundourou in Central Greece. The main finding of the study is that, although the lake is heavily polluted by crude oil, the water circulation, which is assisted by wind, is such that bioaccumulation of pollutants is avoided. The oil film on the surface of the lake is forced to outflow into Elefsis Bay and the concentration of heavy metals in the water column and sediment is lower than from other areas without oil pollution. The zoobenthos is rich in large-sized, pollution-resistant Nereis spp. and 64 phytoplankton species exist in the lake. The lake also supports mullets (Mugil spp.) and eels (Anguilla anguilla). Heavy Metal, Phytoplankton, Water Column, Environmental Management, Nature Conservation
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