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The effect of suspended sediments on Lake Texoma Daphnia : field distributions and in situ incubations
Author(s) -
SCHULZE PETER C.,
GILLESPIE J. HAYLEY,
WOMBLE J. RUSSELL,
SILEN ALEXANDRA F.
Publication year - 2006
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.1365-2427.2006.01579.x
Subject(s) - daphnia , biology , ecology , cladocera , foraging , zooplankton , abundance (ecology) , branchiopoda , daphnia galeata , zoology
Summary 1. We measured the abundance and eggs per female of four Daphnia species in turbid and relatively clear regions of Lake Texoma (Oklahoma‐Texas, U.S.A.) on 12 dates over the course of 5 years. 2. Two species, Daphnia lumholtzi and Daphnia parvula , occurred and reproduced in turbid locations, but two other species, Daphnia mendotae and Daphnia pulicaria , occurred almost exclusively in relatively clear conditions. 3. To test the hypothesis that interference with foraging excludes clear‐water Daphnia species from turbid locations, we incubated adult D. mendotae at both a clear and a turbid site. In three successive experiments D. mendotae individuals incubated at the turbid site carried as many or more eggs than individuals incubated at the clear site.