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Changes in submersed macrophytes in Chautauqua Lake, 1937–1975
Author(s) -
NICHOLSON STUART A.
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.tb01283.x
Subject(s) - macrophyte , myriophyllum , potamogeton , ecology , potamogeton crispus , eutrophication , species richness , aquatic plant , biology , elodea canadensis , potamogetonaceae , botany , nutrient
SUMMARY. Changes in macrophyte richness, relative abundances, depth distributions and dominant species from 1937 to 1975 were assessed in Chautauqua, a eutrophic lake. Change was greatest in dominant species, with several formerly abundant native Potamogeton species being replaced by the exotics, Potamogeton crispus and Myriophyllum spicatum . Two extensively practiced management techniques, herbicidal poisoning and mechanized cutting, were considered to be primarily responsible for the observed macrophyte changes.