Search Results for the EPA National Library Catalog

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Showing: Items 851 - 900
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Studies on the aquatic ecology of the upper Ohio River system 1965
Studies on the productivity and plankton of Lake Superior, 1961
Studies to determine methods for culturing three freshwater zooplankton species / 1975
Study of Mercurials in the Elephant Butte Reservoir Ecosystem. 1973
Study of Pathogenic Free-Living Amebas in Fresh-Water Lakes in Virginia. 1980
Study of the Physical, Chemical and Biological Nature of Water Quality Under Utah Conditions. 1971
Sublethal effects of treated liquid effluent from a petroleum refinery on freshwater organisms / 1978
Substitute chemical program, the first year of progress : proceedings of a symposium / 1975
Summary of Ohio River fishery surveys, 1968-76 / 1978
Summary of recent technical information concerning thermal discharges into Lake Michigan / 1972
Survey of larval fish in the Michigan waters of Lake Erie, 1975 and 1976 / 1979
Survey of the Nation's Lakes, Field Operations Manual, February 2007. 2007
Survey of the Nation's Lakes, Field Operations Manual, March 2007. 2007
Survival of daphnia, crayfish, and stoneflies in air-supersaturated water / 1976
Survival of Salmon Smolts in Sea Water after Exposure to Air-Supersaturated Water. 1978
Survival, Blood Osmolality, and Gill Morphology of Juvenile Yellow Perch, Rock Bass, Black Crappie, and Largemouth Bass Exposed to Acidified Soft Water. 1989
Suspended and dissolved solids effects on freshwater biota : a review / 1977
Swanson Reservoir, Hitchcock County, Nebraska. 1976
Taxonomy and ecology of Stenonema mayflies (Heptageniidae:Ephemeroptera) / 1974
Technology assessment of wetlands for municipal wastewater treatment / 1984
Temperature and aquatic life : laboratory investigations - number 6. 1967
Temperature criteria for freshwater fish : protocol and procedures / 1977
Temperature Requirements of Some Percids and Adaptations to the Seasonal Temperature Cycle. 1977
Test and evaluation of potassium sensors in fresh- and saltwater / 1979
Textbook of limnology 1979
The acute toxicity of zinc to rainbow and brook trout : comparisons in hard and soft water / 1978
The biology of polluted waters / 1960
The biology of polluted waters / 1971
The ecology of running waters 1970
The effect of inorganic sediment on stream biota / 1970
The Effect of nitrilotriacetic acid (NTA) on the structure and functioning of aquatic communities in streams / 1980
The Effects of discharges from limestone quarries on water quality and aquatic biota : a report to the Congress of the United States / 1982
The Environmental Research Laboratory--Duluth bibliography of research products in the fields of freshwater ecology and toxicology, 1967-1990. 1990
The fecal bacteria / 2011
The freshwater fishes of Alaska / 1980
The life of rivers and streams / 1967
The ripple effect : the fate of freshwater in the twenty-first century / 2011
The trophic status and phosphorus loadings of Lake Champlain / 1977
The Validity of effluent and ambient toxicity tests for predicting biological impact, Back River, Baltimore Harbor, Maryland / 1986
The western end of Lake Erie and its ecology. 1954
The world's water 2000-2001 : the biennial report on freshwater resources / 2000
The world's water, 2002-2003 : the biennial report on freshwater resources / 2002
The world's water, 2008-2009 : the biennial report on freshwater resources / 2009
The world's water, volume 7 : the biennial report on freshwater resources / 2012
The world's water. the biennial report on freshwater resources / Volume 8 : 2014
The Zoogeography of North American freshwater fishes / 1986
Thermal Effects on Bluegill Hematology. 1983
Thermal Pollution: Status of the Art. 1969
Thermal Requirements of the Early Life History Stages of Walleye, 'Stizostedion vitreum vitreum', and Sauger, 'Stizostedion canadense'. 1975
Third annotated bibliography on biological effects of metals in aquatic environments (no. 1293-2246) / 1978
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