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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 713
Showing: Items 201 - 250
Your Search: (SUBJECT=Aquatic ecosystems)
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Contributions of Shore Erosion and Resuspension to Nearshore Turbidity in the Choptank River, Maryland.
Correspondence between Ecoregions and Spatial Patterns in Stream Ecosystems in Oregon.
Critical Assessment of Effects of Acidification on Fisheries in North America.
Current Status and Historical Trends of the Estuarine Living Resources within the Corpus Christi Bay National Estuary Program Study Area. Volume 3. Project Summary.
Danage Cases and Environmental Releases from Mines and Mineral Processing Sites.
Defining Biological Status by Comparing with Reference Conditions (Chapter 4).
Delaware River Basin Commission: Quality Assurance Project Plan 2001 Update.
Delineating Bordering Vegetated Wetlands Under the Massachusetts Wetlands Protection Act. A Handbook.
Delivering timely water quality information to your community : the Jefferson Parish-Louisiana Project.
Deposition of air pollutants to the Great Waters : first report to Congress.
Despite Progress, EPA Needs to Improve Oversight of Wastewater Upgrades in the Cheasapeake Bay Watershed. Evaluation Report.
Determination and Occurrence of AHH-Active Polychlorinated Biphenyls, 2,3,7,8-Tetrachloro-p-Dioxin and 2,3,7,8-Tetrachlorodibenzofuran in Lake Michigan Sediment and Biota. The Question of Their Relative Toxicological Significance.
Determination of rates and extent of dechlorination in PCB-contaminated sediments during monitored natural recovery /
Determination of the Insect Growth Regulator Methoprene in Natural Waters by Capillary Gas-Liquid Chromatography.
Developing the Tools to Meet the Nation's Monitoring Needs: The Evolution of EMAP. Third Environmental Monitoring and Assessment Program (EMAP) Research Symposium, April 8-11, 1997.
Development and application of assessment protocols for determining the ecological condition of wetlands in the Juniata river watershed : environmental monitoring and assessment program /
Development and Evaluation of Test Methods for Benthic Invertebrates and Sediments: Effects of Flow Rate and Feeding on Water Quality and Exposure Conditions.
Development and Example Application of a Pilot Model for the Biogeochemical Cycling of Mercury in Watersheds: SERAFM-NPS.
Development of a Conceptual Design for a Bay Quality Index for Tampa Bay, Florida.
Development of a fish index of biotic integrity to assess the condition of West Virginia streams : technical support document /
Development of IBI Metrics for Lakes in Southern New England.
Development of index of biotic integrity expectations for the ecoregions of Indiana : II. Huron-Erie Lake Plain /
Development of index of biotic integrity expectations for the ecoregions of Indiana, I. Central corn belt plain /
Development of Predictive Structure-Biodegradation Relationship Models with the Use of Respirometrically Generated Biokinetic Data.
Diatoms: Powerful Indicators of Environmental Change.
Dioxin and furan concentrations in Puget Sound crabs
Dioxin-like Toxic Potency in Forster's Tern Eggs from Green Bay, Lake Michigan, North America.
Dissolved Free Amino Acids, Combined Amino Acids, and DNA as Sources of Carbon and Nitrogen to Marine Bacteria.
Distribution of submerged aquatic vegetation in the Chesapeake Bay and tributaries and Chincoteague Bay : 1989 /
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay, 1986.
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay, 1989. Draft Report.
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay, 1992.
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay, 1993.
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay, 1994.
Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay-1987.
Does mitigation work : EPA's wetlands research program is checking /
Drilling Fluids and the Arctic Tundra of Alaska: Assessing Contamination of Wetlands Habitat and the Toxicity to Aquatic Invertebrates and Fish (Journal Version).
Dynamic behavior of vinyl chloride in aquatic ecosystems /
Early life-stage toxicity of copper to endangered and surrogate fish species /
Ecological Characterization and Landscape Assessment of the Humboldt River Basin.
Ecological condition of the Upper Chehalis Basin streams
Ecological condition of wadeable streams of the interior Columbia basin : an EPA environmental monitoring and assessment program report /
Ecological functions of off-channel habitat, Willamette River, Oregon : final research plan /
Ecological Research Strategey.
Ecological Revitalization: Turning Contaminated Properties Into Community Assets.
Ecological Risk Assessment: Protecting Northwest Anadromous Salmonid Stocks.
Ecological Structure among Migrant and Resident Seabirds of the Scotia-Weddell Confluence Region.
Economic Impacts of Aquatic Invasive Species: A Review of the Literature.
Economic Valuation of Aquatic Ecosystems.
Ecoregional Biological Criteria.
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