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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 307
Showing: Items 201 - 250
Your Search: (SUBJECT=Abundance)
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Nearshore fish and macroinvertebrate assemblages along the Strait of Juan de Fuca including food habits of the common nearshore fish : final report of three years' sampling, 1976-1979 /
Nearshore Fish and Macroinvertebrate Assemblages Along the Strait of Juan de Fuca Including Food Habits of the Common Nearshore Fish.
Niche Relationships and Population Ecology of Rainbow (Etheostoma caeruleum) and Fantail (E. flabellare) Darters in a Temporally Variable Environment.
Northern Puget Sound marine mammals /
Ohio Stream Regionalization Project: A Compendium of Results.
Patch Size of Forest Openings and Arthropod Populations.
Phytoplankton and zooplankton composition, abundance and distribution and trophic interactions : offshore region of Lakes [i.e. Lake] Erie, Lake Huron and Lake Michigan : 1985 /
Phytoplankton and Zooplankton in Lakes Erie, Huron and Michigan: 1984. Volume 1. Interpretive Report.
Phytoplankton Assemblages of the Nearshore Zone of Southern Lake Michigan.
Phytoplankton composition and abundance in Lake Ontario during IFYGL /
Phytoplankton Composition and Distribution in Saginaw Bay.
Phytoplankton Composition, Abundance and Distribution in Lake Huron.
Phytoplankton Species and Populations in the Pamlico River Estuary of North Carolina.
Phytoplankton water quality relationships in U.S. lakes
Phytoplankton water quality relationships in U.S. lakes /
Phytoplankton water quality relationships in U.S. lakes /
Pike Perch Breeding in the Ponds and Small Reservoirs of Moldavia (O Razvedenii Sudaka v Prudakh i Malykh Vodokhranilishchakh Moldavii).
Polychaetes of the New York Bight: A Key and a Discussion of the Ecology of the Dominant Species.
Population Dynamics and Interagency Management of the Bloater ('Coregonus Hoyi') in Lake Michigan, 1967-1982.
Predicting and Evaluating the Effects of Acidic Precipitation on Water Chemistry and Endemic Fish Populations in the Northeastern United States.
Predicting effects of an electric generating station on wetland passerine birds : Wisconsin power plant impact study /
Probable causes of trends in selected living resources in the Galveston Bay system
Production of arthropod pests and vectors in coal strip mine ponds /
Production, mortality, and power plant entrainment of larval yellow perch in western Lake Erie /
Progress Report under the 1987 Chesapeake Bay Agreement (2nd).
Protection and Restoration of Marine Life in the Inland Waters of Washington State.
Quality Assurance Field Operations Report for the Pilot Study Evaluating the Habitat Value of Wetland Treatment Systems.
Quantitative Differences between Benthic Algal Communities Along a Depth Gradient in Lake Michigan.
Record of Daily Growth in Otoliths of Atlantic Silversides, 'Menidia menidia', from Field and Laboratory.
Recovery of Strait of Juan de Fuca Intertidal Habitat following experimental contamination with oil : second annual report, fall 1979-winter 1980 /
Recovery of the Macrobenthos at a Dredge Site in Yaquina Bay, Oregon.
Regional and Local Vegetation Patterns: The Responses of Vegetation to Subcontinental Air Masses.
Regional Application of an Index of Biotic Integrity Based on Stream Fish Communities.
Reoviruses in water pollution testing : final report /
Report on the invertebrate megafauna sampled by trawling in the Atlantic 3800 meter low-level radioactive waste disposal site /
Reproduction and distribution of fishes in a cooling lake : Wisconsin power plant impact study /
Research and Quality Assurance Methods Used in the EMAP Prairie Wetlands Pilot Study.
Reservoir ecosystems and western coal development in the upper Missouri River /
Resource Seasonality and Fish Diets in an Illinois Stream.
Response of Native Montana Grasses to Soil Water Stress.
Response of Peritrichous Ciliates in Fouling Communities to Seawater-Accommodated Hydrocarbons.
Responses of zooplankton and 'Chaoborus' to temephos in a natural pond and in the laboratory /
Restoration of Oyster (Crassostrea virginica) Habitat for Multiple Estuarine Species Benefits. A Final Report to the Piscatauqa Region Estuaries Partnership.
Sampling Larval Fish in the Littoral Zone of Western Lake Erie.
Seasonal Abundance and Spatial Distribution of Lake Michigan Macrobenthos, 1964-67.
Seasonal Abundance Patterns of Diatoms on 'Cladophora' in Lake Huron.
Seasonal Cycles of Abundance in Zooplankton Populations of Yaquina Bay, Oregon.
Seasonal Distribution and Abundance of Marine Bird Populations in the Strait of Juan de Fuca and Northern Puget Sound in 1978.
Seasonal fluctuations of major diatom species at five stations across Lake Michigan : May 1970-October 1972 /
Seasonal Variations of Tintinnids (Ciliophora: Oligotrichida) in Narragansett Bay, Rhode Island, U.S.A.
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