Premium
THE COPEPODA AND CLADOCERA OF A MISSOURI RIVER RESERVOIR: A COMPARISON OF SAMPLING IN THE RESERVOIR AND THE DISCHARGE
Author(s) -
Cowell Bruce C.
Publication year - 1967
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1967.12.1.0125
Subject(s) - cladocera , sampling (signal processing) , hydrology (agriculture) , environmental science , zooplankton , ecology , geology , biology , engineering , geotechnical engineering , filter (signal processing) , electrical engineering
An automatic plankton sampler was installed in the powerhouse of Gavins Point Dam to monitor plankton in discharges from Lewis and Clark Lake. These data and samples from the reservoir taken with tow nets indicated that the automatic sampler can be used exclusively to monitor changes in species compositions and densities of Copepoda and Cladocera. The annual discharge of Copepoda and Cladocera from Lewis and Clark Lake was estimated to be 12,619 metric tons, wet weight. Discharges of zooplankton from Lake Francis Case (Ft. Randall Reservoir), 80 km upstream, appear to have considerably more influence upon standing crops in Lewis and Clark Lake than the water exchange rates or the inflow from tributary creeks.