Search Results for the EPA National Library Catalog

Items Found: 943
Showing: Items 251 - 300
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Select Item Title Year Published
Diel Vertical Migration of Zooplankton in Lakes and Oceans causal explanations and adaptive significances / [electronic resource] : 2010
Diseases of marine organisms : International Helgoland Symposium, 1983 / 1984
Disinfection efficiency and residual toxicity of several wastewater disinfectants / 1976
Disinfection efficiency and residual toxicity of several wastewater disinfectants. Volume II. Wyoming, Michigan / 1977
Distribution and ecology of the marine invertebrates of Point Barrow, Alaska / 1955
Distribution and ecology of the marine invertebrates of Point Barrow, Alaska / 1955
Diverse: A Fortran IV Program to Calculate Diversity Indices of Stream Bottom Organisms. 1971
Draft supplement to final environmental impact statement final designation Georgetown ocean dredged material disposal site / 1984
Dredge Disposal Study San Francisco Bay and Estuary. Appendix H. Pollutant Uptake Study. 1975
Drilling Fluids and the Arctic Tundra of Alaska: Assessing Contamination of Wetlands Habitat and the Toxicity to Aquatic Invertebrates and Fish (Journal Version). 1988
Dwarf wedge mussel (Alasmidonta heterodon) recovery plan 1993
Dynamic 96-hour Acute Toxicity of Acrylamide Monomer to Midge Larvae (paratanytarsus Parthenogenetica) Final Report. 2000
East Gallatin River, Montana: Macroinvertebrate Distribution and Water Analysis 1973-1974. 1976
Echinodermata [electronic resource] / 2005
Ecological Alterations of Iowa Prairie-Agricultural Streams. 1984
Ecological and Genetic Implications of Aquaculture Activities [electronic resource] / 2007
Ecological Characterization of Coastal Maine (North and East of Cape Elizabeth). Volume 2. 1980
Ecological Characterization of Coastal Maine (North and East of Cape Elizabeth). Volume 3. 1980
Ecological condition of the Columbia river estuary: an environmental monitoring and assessment program (EMAP) report. modeling fish distributions in the Pacific Northwest coast range ecoregion using EMAP Data. / 2007
Ecological condition of the estuaries of Oregon and Washington. 2006
Ecological Effects of Experimental Acidification on a Stream Ecosystem. 1984
Ecological Effects of Soil Lead Contamination. 1992
Ecological Impacts of Non-Native Invertebrates and Fungi on Terrestrial Ecosystems [electronic resource] / 2009
Ecological Monitoring of Stream Systems. 1973
Ecological recovery after reclamation of toxic spoils left by coal surface mining : phase 1 : a baseline assessment of environmental conditions prior to application of intensive remedial treatments / 1979
Ecological Risk Assessment for General Electric (GE)/Housatonic River Site Rest of River. Volumes 1 and 2, Sections 1-12. 2004
Ecological Study of the Missouri River Prior to Channelization. 1974
Ecology and classification of North American freshwater invertebrates 2001
Ecology and classification of north american freshwater invertebrates 2009
Ecology and classification of North American freshwater invertebrates / 1991
Ecology of marine invertebrate larvae 1995
Ecology of the zoobenthos of southeastern Lake Michigan near the D.C. Cook Nuclear Power Plant 1984
Economic Impacts of Aquatic Invasive Species: A Review of the Literature. 2005
Ecosystem Responses to Alternative Pesticides in the Terrestrial Environment: A System Approach. 1983
Ecotoxicology of metals in invertebrates / 1993
Effect of Elevated Water Temperature on Macro-Invertebrate Communities in Outdoor Experimental Channels. 1982
Effect of hydrogen sulfide on fish and invertebrates. 1976
Effect of hydrogen sulfide on fish and invertebrates. Part I, Acute and chronic toxicity studies / 1976
Effect of hydrogen sulfide on fish and invertebrates. Part II, Hydrogen sulfide determination and relationship between pH and sulfide toxicity / 1976
Effect of Irrigation Return Water on the Benthic Macroinvertebrates of the Lost River Oregon-California. 1969
Effect of P-Cresol on Leaf Decomposition and Invertebrate Colonization in Experimental Outdoor Streams. 1983
Effect of Several Stress Factors on the Susceptibility of the Predatory Mite, 'Metaseiulus occidentalis' (Acari: Phytoseiidae), to the Weak Bacterial Pathogen 'Serratia marcescens.' 1988
Effect of thermal inputs on the populations of fish and macroinvertebrates in the Wabash River 1973
Effect of Thermal Inputs on the Populations of Fish and Macroinvertebrates in the Wabash River. 1973
Effects and interactions of polychlorinated biphenyl (PCB) with estuarine microorganisms and shellfish / 1977
Effects of a bleached kraft mill effluent on periphyton and macroinvertebrates in streamside mesocosm studies 2001
Effects of a Continuous Low-Level No. 2 Fuel Dispersion on Laboratory-Held Intertidal Colonies. 1977
Effects of Acute Radiation on Reproductive Success of the Polychaete Worm 'Neanthes arenaceodentata'. 1988
Effects of Agriculture on Stream Fauna in Central Indiana. 1983
Effects of alterations to low gradient reaches of Utah streams 1980
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