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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 449
Showing: Items 151 - 200
Your Search: (SUBJECT=Biological productivity)
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Forest Lake, Washington County, Minnesota.
Freshwater wetlands for wastewater management environmental impact statement : phase I report.
Glen Lake, Hillsborough County, New Hampshire.
Global Terrestrial Carbon Cycle.
Goodyear Lake, Otsego County, New York.
Grand Lake, Green Lake County, Wisconsin.
Green Lake, Kandiyohi County, Minnesota.
Green Mountain Reservoir - Lower Blue River Study, Colorado, September, 1976.
Growth of an Adherent Mixed Microbial Culture in a Substrate Limited Single State Chemostat.
Harriman Reservoir Windham County Vermont.
Harris Pond, Worchester County, Massachusetts, and Providence County, Rhode Island.
Historical review of water quality and climatic data from Chesapeake Bay with emphasis on effect of enrichment
Holston River study /
Housatonic Impoundments, (Lakes Lillinonah, Zoar, and Housatonic), Fairfield, Litchfield, and New Haven Counties, Connecticut.
Huntington Lake, Sullivan County, New York.
IBIS, Intensive Biometric Intertidal Survey : an aerial and groundtruth investigation of salt marsh ecology, Wallops Island, Virginia
Ice edge resource module (IERM) : a tool for prediction and presentation of biological resources in marginal ice zones /
Impact of Solar Ultraviolet-B Radiation (290-320 nm) upon Marine Microalgae.
Impact of UV-B Radiation Upon Estuarine Microcosms.
Impacts of sediment and nutrients on biota in surface waters of the United States /
Implication of Yeasts and Yeast-Like Fungi in Marine Processes.
in situ Evaluation of Nutrient Effects in Lakes.
Influences of Microbial Populations on Aquatic Nutrient Cycles and Some Engineering Aspects.
Integrated experimental ecology; methods and results of ecosystem research in the German Solling project.
Intensive watershed study the Patuxent River basin /
Interim Report, Upper Klamath Lake Studies, Oregon.
Interlaboratory Precision Test. An Eight Laboratory Evaluation of the Provisional Algal Assay Procedure Bottle Test.
Investigation of Lake Water Quality in Eastern South Dakota with Remote Sensing Techniques.
Investigation of Primary Productivity Using the 14-C Method and an Analysis of Nutrients in Elephant Butte Reservoir.
Investigation of the Cause and Effect of Eutrophication in Long Lake, Washington.
Investigation of the Water Quality and Productivity of Polson Bay, Flathead Lake, Montana.
John H. Kerr Reservoir, Halifax, and Mecklenburg Counties, Virginia, and Granville, Vance, and Warren Counties, North Carolina.
Johnson Pond, Wicomico County, Maryland.
Jordan River Study Utah. June-August, 1972.
Kaneohe Bay Sewage Diversion Experiment: Perspectives on Ecosystem Responses to Nutritional Perturbation.
Kelly's Falls Pond, Hillsborough County, New Hampshire.
Lac La Belle, Waukesha County, Wisconsin.
Lake Ahquabi, Warren County, Iowa.
Lake Andrusia, Beltrami County, Minnesota.
Lake Bemidji, Beltrami County, Minnesota.
Lake Butte des Morts, Winnebago County, Wisconsin.
Lake Carolos, Douglas County, Minnesota.
Lake Darling, Douglas County, Minnesota.
Lake drawdown as a method of improving water quality /
Lake Eau Claire, Eau Claire County, Wisconsin.
Lake Erie water quality 1970-1982 : a management assessment /
Lake Eutrophication - Water Pollution Causes, Effects and Control.
Lake Huron Crustacean and Rotifer Zooplankton, 1980: Factors Affecting Community Structure with an Evaluation of Water Quality Status.
Lake Kegonsa, Dane County, Wisconsin.
Lake Koshkonong, Jefferson County, Wisconsin.
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