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THE EFFECTS OF ARTIFICIAL CIRCULATION ON A SMALL NORTHEASTERN IMPOUNDMENT 1
Author(s) -
Barbiero Richard P.,
Ashby Steven L.,
Kennedy Robert H.
Publication year - 1996
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1996.tb04055.x
Subject(s) - epilimnion , tailwater , environmental science , eutrophication , water quality , hydrology (agriculture) , stratification (seeds) , phosphorus , hypolimnion , surface runoff , storm , oceanography , geology , ecology , nutrient , chemistry , seed dormancy , botany , germination , geotechnical engineering , organic chemistry , dormancy , biology
Artificial circulation was applied at East Sidney Lake, a small, eutrophic impoundment in New York, to improve the water quality of the reservoir and tailwater. Treatment was successful at both reducing the stability of the reservoir and maintaining higher mean oxygen concentrations in the bottom waters. Discharge waters had lower metals and phosphorus concentrations during treatment years. However, vertical temperature differences, although minimal, were still sufficient to permit chemical stratification and some phosphorus release from the sediments. Frequent mixing events during periods of low stability, and runoff from storm events, also appeared to increase transport of phosphorus into the epilimnion. Overall, treatment did not result in decreases in algal populations or improvements in water clarity.