Search Results for the EPA National Library Catalog

Items Found: 1987
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Select Item Title Year Published
Ecosystem Perspective on Potential Impacts of Drilling Fluid Discharges on Seagrasses. 1987
Ecosystem process modeling of submerged aquatic vegetation in the lower Chesapeake Bay / 1994
Ecosystem Protection: Terms, Principles, and EPA Authorities 1996
Ecosystem Responses to Alternative Pesticides in the Terrestrial Environment: A System Approach. 1983
Ecosystem responses to increases in solar ultraviolet-B radiation / 1989
Ecosystem Restoration to Restore Water Quality; An Unrealized Opportunity for Practitioners and Researchers. 2003
Ecosystem services : benefits supplied to human societies by natural ecosystems / 1997
Ecosystem Services Research Program (ESRP) Albemarle-Pamlico Watershed and Estuary Study (APWES) Research Plan. 2010
Ecosystem stress from chronic exposure to low levels of nitrate / 2005
Ecosystems analysis of the Big Cypress Swamp and estuaries / 1973
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
Ecotox thresholds. 1996
Ecotoxicological test systems : proceedings of a series of workshops / 1981
Ecotoxicology: Problems and Approaches (Book Review). 1990
Effect of P-Cresol on Leaf Decomposition and Invertebrate Colonization in Experimental Outdoor Streams. 1983
Effect of riparian areas on the ecological condition of small, perennial streams in agricultural landscapes of the Willamette Valley {Microfiche} 1997
Effects and interactions of polychlorinated biphenyl (PCB) with estuarine microorganisms and shellfish / 1977
Effects of 2,4-Dichlorophenol, a Metabolite of a Genetically Engineered Bacterium, and 2,4-Dichlorophenoxyacetate on Some Microorganism-Mediated Ecological Processes in Soil. 1991
Effects of a Continuous Low-Level No. 2 Fuel Dispersion on Laboratory-Held Intertidal Colonies. 1977
Effects of Acid Perturbation on a Controlled Ecosystem. 1981
Effects of Acidic Deposition on Streams in the Appalachian Mountain and Piedmont Region of the Mid-Atlantic United States. 1993
Effects of Acidic Precipitation on the North American Continent. 1985
Effects of Aniline and Three Derivatives on Laboratory Microecosystems. 1987
Effects of Atrazine on Aquatic Ecosystems: A Physical and Mathematical Modeling Assessment. 1985
Effects of Atrazine on Microcosms Developed from Four Natural Plankton Communities. 1989
Effects of Atrazine on Periphyton Communities in Controlled Laboratory Ecosystems. 1985
Effects of beta Radiation from Simulated Fallout on the Reproductive Potential of a Dominant Plant Species in a Natural Community. 1971
Effects of Changes in Freshwater Inflow on Biological Resources of Tampa Bay Tributaries. 2004
Effects of Chlorendic Acid, A Priority Toxic Substances, on Laboratory Aquatic Ecosystems. 1983
Effects of chlorinated seawater on decapod crustaceans and Mulinia larvae / 1979
Effects of chlorinated seawater on decapod crustaceans and Mulinia larvae / 1979
Effects of Chlorpyrios on Macroinvertebrates in Littoral Enclosures. 1987
Effects of CO2 on Competition between Rice and Barnyardgrass. 1994
Effects of Complex Effluents from the River Raisin on Zooplankton Grazing in Lake Erie. 1988
Effects of Contaminants from Chromated Copper Arsenate-Treated Lumber on Benthos. 1994
Effects of El Nino and La Nina on Seabird Assemblages in the Equatorial Pacific. 1992
Effects of Fluorene on Microcosms Developed from Four Natural Communities (Journal Version). 1988
Effects of Ionizing Radiation on Plant Species, Populations and Ecosystems. Progress Report, September 1, 1970-August 31, 1971. 0
Effects of Mines and Valley Fills on Aquatic Ecosystems of the Central Apppalachian Coalfields. 2001
Effects of Mosquito Control Ditching on Estuarine Ecosystems. 1973
Effects of pond characteristics on biotic exposures / 1991
Effects of Repeated Ammonium Sulfate Applications on Soil Leachate Chemistry on the Fernow Experimental Forest in West Virginia, USA. 1992
Effects of Solar Radiation on Organic Matter Cycling: Formation of Carbon Monoxide and Carbonyl Sulfide (Chapter 11). 1994
Effects of Stratospheric Ozone Depletion on Marine Organisms. 1989
Effects of Three Emulsifying Agents Against Crude Oil on the Primary Productivity of an Experimental Community of Benthic Diatoms (Effets de Trois Agents Emulsionnants Anti-Petrole Sur la Productivite Primaire Dune Communaute Experimentale de Diatomees Benthiques). 1974
Effects of Toxic Chemicals on Nutrient Cycling Processes in Soil. 1995
Effects of Toxic Substances on Zooplankton Populations: A Great Lakes Perspective. 1988
Effects of Ultraviolet-B Radiation on Primary Production along Latitudinal Transects in the South Pacific Ocean. 1993
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