Search Results for the EPA National Library Catalog

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Showing: Items 301 - 350
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Distribution of phytoplankton in New Mexico lakes / 1979
Distribution of phytoplankton in Oregon lakes / 1979
Distribution of phytoplankton in South Carolina lakes / 1977
Distribution of phytoplankton in Wyoming lakes / 1979
DO Model Uncertainty with Correlated Inputs. 1990
Dominant attached filamentous algae of Lake Huron : field ecology and biomonitoring potential 1980 / 1985
Draft Environmental Impact Statement City of Los Angeles Wastewater Facilities Plan. Chapters III, IV, V, and VI. 1977
Draft Environmental Impact Statement City of Los Angeles Wastewater Facilities Plan. Chapters VII, VIII, IX, X, XI, and XII. 1977
Draft Environmental Impact Statement City of Los Angeles Wastewater Facilities Plan. Summary of Issues. 1977
Draft Environmental Studies on 1,5-Cyclooctadiene. 2007
Draft report on green tide monitoring survey for 1986 1987
Dynamics of Phytoplankton Blooms in Puget Sound, a Fjord in the Northwestern United States. 1974
Dynamics of Pollutant Photoreactions in the Hydrosphere. 1984
Dynamics of the Nitrogen Cycle in Lakes. 1970
Ecohab : the ecology and oceanography of harmful algal blooms : a national research agenda / 1995
Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminants in Lake Erie. Phase III. Parts 5, 6, and 7. 1973
Ecological Characterization of Coastal Maine (North and East of Cape Elizabeth). Volume 2. 1980
Ecological Factors Influencing Production of Algae in Northern Prairie Lakes. 1972
Ecological Implications of Dimethyl Mercury in an Aquatic Food Chain. 1973
Ecological risk assessment for the Middle Snake River, Idaho. 2002
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 1. Program Description and Field Monitoring of Growth Dynamics (Journal Version). 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 2. Phosphorus Uptake Kinetics (Journal Version). 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 3. The Dependence of Growth Rates on Internal Phosphorous Pool Size (Journal Version). 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 4. Photosynthesis and Respiration as Functions of Light and Temperature. 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 5. Model Development and Calibration. 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 6. Seasonal and Spatial Variation in Growth Kinetics. 1982
Ecological Studies and Mathematical Modeling of 'Cladophora' in Lake Huron: 7. Model Verification and System Response. 1982
Ecological Study of the Missouri River Prior to Channelization. 1974
Ecology of 'Cladophora fracta' and 'Cladophora glomerata'. 1968
Ecology of Diatoms in Hardwater Habitats. 1971
Ecosystem Changes in Lakes Erie and Ontario. 1981
Ecosystem stress from chronic exposure to low levels of nitrate / 2005
Ecosystematic Study of the South River, Virginia. 1972
Effect of Algae on BOD Measurements. 1961
Effect of carbon on algal growth--its relationship to eutrophication; a review paper, 1971
Effect of Dredging on the Nutrient Levels and Biological Populations of a Lake. 1972
Effect of phosphorus removal processes on algal growth / 1973
Effect of Phosphorus Removal Processes on Algal Growth. 1973
Effect of Secondary Effluents on Eutrophication in Las Vegas Bay, Lake Mead, Nevada. 1986
Effect of Silicate Grain Shape, Structure, and Location on the Biomass and Community Structure of Colonizing Marine Microbiota. 1981
Effect of Silt and Silt Removal in a Prairie Lake. 1973
Effect of Stress and Non-Stress Conditions Upon the Interaction of Plectonema Boryanum and the LPP-Phycoviruses. 1973
Effect of temperature on algal removal by alum coagulation 1974
Effects and Uptake of Chlorinated Naphthalenes in Marine Unicellular Algae. 1977
Effects from an Aquatic Toxicity Study in Green Algae with Mixture of Substituted Isothiazolone and Solvent. 2009
Effects of a Hexachlorobiphenyl and Pentachlorophenol on Growth and Photosynthesis of Phytoplankton. 1982
Effects of Acid Perturbation on a Controlled Ecosystem. 1981
Effects of Acidic Deposition on North American Lakes: Palaeolimnological Evidence from Diatoms and Chrysophytes. 1990
Effects of Aniline and Three Derivatives on Laboratory Microecosystems. 1987
Effects of Atrazine on Periphyton Communities in Controlled Laboratory Ecosystems. 1985
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