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Seasonal Distribution of Thermotolerant Free‐Living Amoebae. II. Lake Issaqueena 1
Author(s) -
KYLE DENNIS E.,
NOBLET GAYLE PITTMAN
Publication year - 1987
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1987.tb03122.x
Subject(s) - profundal zone , littoral zone , water column , naegleria , sediment , naegleria fowleri , ecology , structural basin , trophic state index , water reservoir , environmental science , hydrology (agriculture) , biology , acanthamoeba , geology , eutrophication , geomorphology , nutrient , geotechnical engineering , petroleum engineering , microbiology and biotechnology , meningoencephalitis , immunology
A quantitative study of the seasonal distribution of thermotolerant (37°C and 45°C), small free‐living amoebae (FLA) was conducted in Lake Issaqueena, a warm, monomictic lake with steep, sloping banks and a maximum basin depth of 10 m in the Piedmont region of South Carolina. Naegleria and Vahlkampfia were the most frequently encountered FLA in littoral sediment and surface water samples whereas Acanthamoeba was most commonly isolated from profundal sediment, especially during late summer. In the water column, FLA populations were highest in a persistent detrital layer; however, few amoebae were isolated from a massive (∼1.5 m thick) layer of Oscillatoria . The only N. fowleri isolated in this study was from the detrital layer. Discussion of the influence of differences in watershed and basin morphology on variations in the size and generic composition of FLA populations for the aquatic ecosystems of Lake Issaqueena and Willard's Pond is included.