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Epilimnetic and hypolimnetic symptoms of eutrophication in Great Mazurian Lakes, Poland
Author(s) -
GLIWICZ Z. MACIEJ,
KOWALCZEWSKI ANDRZEJ
Publication year - 1981
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1981.tb01274.x
Subject(s) - hypolimnion , epilimnion , eutrophication , environmental science , trophic level , thermocline , trophic state index , productivity , ecology , nutrient , biology , macroeconomics , economics
SUMMARY. An increase in the trophic state and productivity of a lake is not necessarily accompanied by a decrease in epilimnetic Secchi disc transparency. In smaller lakes with sharp thermoclines the symptoms of eutrophication may be more evident as a decrease in transparency in the epilimnion but, in larger lakes with poorly defined thermoclines, symptoms of eutrophication may be more evident in the hypolimnion as shown by an increase in the rate of hypolimnetic oxygen consumption.