Search Results for the EPA National Library Catalog

Items Found: 968
Showing: Items 351 - 400
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Select Item Title Year Published
Diverse: A Fortran IV Program to Calculate Diversity Indices of Stream Bottom Organisms. 1971
Draft 2009 update aquatic life ambient water quality criteria for ammonia - freshwater [electronic resource]. 2009
Drinking water regulation and health / 2003
Durham Urban Runoff Program 1983. 1983
Dynamics of the Nitrogen Cycle in Lakes. 1970
Early life history and feeding of young mountain whitefish / 1974
Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminents in Lake Erie, Phase I and Phase II. 1971
Ecological aspects of used-water treatment 1975
Ecological Effects of Experimental Acidification on a Stream Ecosystem. 1984
Ecological Monitoring of Stream Systems. 1973
Ecological Studies of the Surface Waters of the Whitewater Creek Watershed, Walworth, Rock and Jefferson Counties, Wisconsin. 1973
Ecological Study of the Missouri River Prior to Channelization. 1974
Ecology of Floodplain Pools in the Kaskaskia River Basin of Illinois. 1973
Ecology of inland waters and estuaries / 1976
Ecology of inland waters and estuaries. 1961
Ecology of Patterned Boreal Peatlands of Northern Minnesota: A Community Profile. 1987
Ecology of Schistosome Dermatitis in Western and Northern Nevada Waters. 1969
Ecotox Database (AQUIRE, PHYTOTOX, and TERRETOX) (Non-VMS Data) (on Magnetic Tape). 1996
Ecotox Database (AQUIRE, PHYTOTOX, and TERRETOX) (Non-VMS Data) (on Magnetic Tape). (Reannoucement with New Abstract). 1996
Ecotox Database (AQUIRE, PHYTOTOX, and TERRETOX) (VMS Data and Programs) (on Magnegtic Tape). 1996
Effect of Diet on Copper Toxicity to 'Neanthes arenaceodentata' (Annelida: Polychaeta). 1985
Effect of Environmental Variables on Enteric Virus Survival in Surface Freshwaters. 1987
Effect of Exposure Time and Copper Concentration on Reproduction of the Fathead Minnow ('Pimephales promeles'). 1977
Effect of Formation Dip on the Movement of Fresh Water Stored in Saline Aquifers. 1972
Effect of hydrogen sulfide on fish and invertebrates. Part I, Acute and chronic toxicity studies / 1976
Effect of Long-term Reduction and Diel Fluctuations in Dissolved Oxygen on Spawning of Black Crappie, 'Pomoxis nigromaculatus'. 1978
Effect of Water Quality and Environmental Factors on Freshwater Fish. 1970
Effects and fate of sewage chlorination products in phytoplankton / 1975
Effects of Acidic Deposition on Streams in the Appalachian Mountain and Piedmont Region of the Mid-Atlantic United States. 1993
Effects of Changes in Freshwater Inflow on Biological Resources of Tampa Bay Tributaries. 2004
Effects of Chemical Variations in Aquatic Environments. Volume II. Toxic Effects of Aqueous Aluminum to Rainbow Trout 1973
Effects of Chemical Variations in Aquatic Environments. Volume III. Lead Toxicity to Rainbow Trout and Testing Application Factor Concept 1973
Effects of copper and zinc on smoltification of coho salmon / 1977
Effects of Copper Sulfate on Certain Algae and Zooplankters in Winnisquam Lake, New Hampshire. 1970
Effects of exposure to heavy metals on selected freshwater fish : toxicity of copper, cadmium, chromium and lead to eggs and fry of seven fish species / 1976
Effects of Food Density and Temperature on Feeding and Growth of Young Inland Silversides ('Menidia beryllina'). 1993
Effects of Food Density on Growth and on Patterns of Prey Depletion by Larval Silverside Fish, 'Menidia beryllina' (Cope): A Laboratory Investigation with Image Analysis. 1993
Effects of Heated Discharges from Gulf Power on the Temperature Regime and Biota of the Lower Escambia River. 1973
Effects of Hemorrhagic Stress on Several Blood Parameters in Adult Rainbow Trout ('Salmo gairdneri'). 1978
Effects of Kraft Mill Effluent on the Sexuality of Fishes: An Environmental Early Warning. 1992
Effects of Nitrate and Phosphate Limitation on Cyclostat Growth of Two Freshwater Diatoms (Journal Version). 1982
Effects of Pentachlorophenol on Invertebrates and Fish in Outdoor Experimental Channels. 1985
Effects of pesticides in water; A report to the states. 1973
Effects of Phenol Molecular Structure on Bacterial Transformation Rate Constants in Pond and River Samples. 1983
Effects of Pollution on Biota of the Pigeon River, North Carolina and Tennessee. 1966
Effects of Pollution on Freshwater Fish. 1982
Effects of Pollution on Freshwater Fish. 1977
Effects of Pollution on Freshwater Fish. 1980
Effects of Pollution on Freshwater Fish. 1979
Effects of Pollution on Freshwater Fish. 1976
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