Search Results for the EPA National Library Catalog

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Climate change effects on stream and river biological indicators : a preliminary analysis. 2008
Climate change effects on stream and river biological indicators : a preliminary analysis. 2008
Clinch and Powell valley watershed ecological risk assessment. 2002
Coal-waste artificial reef program / 1985
Coastal sprawl : the effects of urban design on aquatic ecosystems in the United States / 2002
Collingwood Harbour Remedial Action Plan stage 2 report : a strategy for restoring the Collingwood Harbour ecosystem and delisting Collingwood Harbour as an area of concern / 1992
Collingwood Harbour Remedial Action Plan stage 2 report : a strategy for restoring the Collingwood Harbour ecosystem and delisting Collingwood Harbour as an area of concern / 1992
Color characterization before and after lime treatment / 1974
Colorado-Big Thompson/Windy Gap Projects,Colorado, Final Environmental Statement 1981
Combined Effects of Chlorine and Ammonia on Litter Breakdown in Outdoor Experimental Streams. 1989
Coming Together for Clean Water. EPA's Strategy to Protect America's Waters. 2011
Commentary on bioaccumulation modeling issues. 1995
Common and scientific names of aquatic invertebrates from the United States and Canada Cnidaria and Ctenophora / 2002
Common aquatic plants : identification, control / 1964
Common aquatic weeds 1969
Commonwealth of Pennsylvania Invasive Species Council Aquatic Invasive Species Management Plan. 2006
Communicating ecosystem services : tools for scientists to engage the public. 2001
Community structure, nutrient dynamics, and the degradation of diethyl phthalate in aquatic laboratory microcosms 1982
Community-level aquatic system studies : interpretation criteria / 2002
Comparative analyses of fish populations in naturally acidic and circumneutral lakes in northern Wisconsin / 1984
Comparative Analysis of Ecological Risks from Pesticides and Their Uses: Background, Methodology and Case Study. 1998
Comparative Effects of Water-Column Nitrate Enrichment on Eelgrass, Shoal Grass, and Widgeon Grass. 1993
Comparative Study of Standing Crops and of Phosphorus and Nitrogen Contents of Four Macrophyte Stream Communities. 1971
Comparative Study of the Benthic Microbial Biota in Some Coastal Areas of Puerto Rico. 1972
Comparative Toxicity of Polyelectrolytes to Selected Aquatic Animals. 1976
Comparative toxicity of sewage-effluent disinfection to freshwater aquatic life / 1975
Comparative toxicity of sewage-effluent disinfection to freshwater aquatic life / 1975
Comparative Toxicity of Ten Organic Chemicals to Ten Common Aquatic Species. 1985
Comparing the Accuracy of Equation Formats for Modeling Microbial Population Decay Rates. 1992
Comparison of Created and Natural Freshwater Emergent Wetlands in Connecticut (USA). 1992
Comparison of Effluent Toxicity Results Using 'Ceriodaphnia dubia' Cultured on Several Diets. 1993
Comparison of Five Watersheds of New Mexico as Interpreted from the Distribution of the Species of the Aquatic Beetle Family Dytiscidae. 1971
Comparison of Invertebrate Drift in Three Michigan Streams. 1969
Comparison of Laboratory Toxicity Test Results with Responses of Estuarine Animals Exposed to Fenthion in the Field. 1987
Comparison of Microbial Bioassays for the Detection of Aquatic Toxicants. 1983
Comparison of Mid-Bay and lateral station water quality data in the Chesapeake Bay Mainstem : Chespaeake Bay Program. 1993
Comparison of Mixed Flask Culture and Standardized Laboratory Model Ecosystems for Toxicity Testing. 1986
Comparison of Mixed Flask Culture and Standardized Laboratory Model Ecosystems for Toxicity Tests. 1985
Comparison of System Design and Reproducibility to Estimate Bioconcentration of Di-n-Hexylphthalate By 'Daphnia magna'. 1985
Comparison of the Effects of Drilling Fluid on Macrobenthic Invertebrates Associated with the Seagrass, 'Thalassia testudinum', in the Laboratory and Field. 1992
Compendium of aquatic toxicity studies in Canada : presented at the Aquatic Toxicity Coordination Workshop, Freshwater Institute, Winnipeg, August, 1974. 1974
Compilation of aquatic living resources data for the fluvial beaches of the Patuxent drainage system 1993
Compilation of Common Algal Control and Management Techniques. 1980
Compiled data on the vascular aquatic plant program : 1975-1977. 1977
Compliance guide for the concentrated aquatic animal production point source category 2006
Component description of sediment-water microcosms / 1974
Composite list of weeds : [composite list of herbaceous weeds, aquatic weeds, and woody plants arranged alphabetically by scientific name : report] / 1971
Composition and distribution of the macroinvertebrates of the Ohio River : pollution, current velocity, and seasonal effects / 1983
Comprehensive Analysis of the Sediments Retained Behind Hydroelectric Dams of the Lower Susquehanna River. 2006
Comprehensive conservation and management plan / 1994
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