Search Results for the EPA National Library Catalog

Items Found: 307

Showing: Items 251 - 300

Your Search: (SUBJECT=Abundance)


PREV 1 2 3 4 5 6 7 NEXT
Select Item Title Year Published
Section 74 seafood processing study : executive summary : a report to the congress of the United States / 1980
Section 74 seafood processing study : executive summary. Appendix, volume II : a report to the congress of the United States / 1980
Sediment Quality of the NY/NJ Harbor System: A 5-Year Revisit: 1993/4-1998. Final Report. An Investigation under the Regional Environmental Monitoring and Assessment Program (REMAP). 2003
Sediment Toxicity, Contamination and Amphipod Abundance at a DDT- and Dieldrin-Contaminated Site in San Francisco Bay. 1994
Sediment Toxicity, Contamination, and Macrobenthic Communities Near a Large Sewage Outfall. 1985
Site-specific water quality studies of the Straight River, Minnesota : complex effluent toxicity, zinc toxicity, and biological survey relationships / 1985
Small Mammal Utilization of Vernal Pools, San Diego County, California. 1985
Smallmouth bass and largemouth bass in the Tongue River Reservoir, Montana, 1975-76 / 1980
Spatial and seasonal structure of rotifer communities in Lake Huron / 1979
Spatio-Temporal Fluctuations in the Distribution and Abundance of Demersal Fish and Epibenthic Crustaceans in Yaquina Bay, Oregon. 1990
Species Composition and Diversity of Polychaetes in the New York Bight. 1973
Species Diversity of Benthic Macroinvertebrates in Three Michigan Streams. 1969
Standard Program for Impact Assessment. Phase 1. Ichthyoplankton Sampling. 1983
State of the Chesapeake Bay: Second Annual Monitoring Report, 1984-1985. 1987
State of the Chesapeake Bay: Second Annual Monitoring Report, Compendium. 1987
Statistical Analysis of the Spatial and Temporal Variability of the Ratio Chlorophyll A to Phytoplankton Cell Volume in Saginaw Bay, Lake Huron. 1978
Status, Trends, and Conservation of Eelgrass in Atlantic Canada and the Northeastern United States. Report of a Workshop Held February 24-25, 2009 at Regency Hotel, Portland, Maine. 2009
Stochasticity in Stream Fish Communities: An Alternative Interpretation. 1984
Stream Fish Communities Revisited: A Case of Mistaken Identity. 1986
Structure of Corticolous Lichen Communities Before and After Exposure to Emissions from a 'Clean' Coal-Fired Generating Station. 1980
Structure of Soft-Bottom Benthic Communities in the Vicinity of the Texas Flower Garden Banks, Gulf of Mexico. 1985
Studies of effects of thermal pollution in Biscayne Bay, Florida / 1974
Submerged aquatic vegetation : distribution and abundance in the lower Chesapeake Bay and the interactive effects of light, epiphytes, and grazers / 1983
Sulfur Oxides Pollution Control. Federal Research and Development Planning and Programming, 1968 - 1972. 1968
Summary of Ohio River fishery surveys, 1968-76 / 1978
Survey of larval fish in the Michigan waters of Lake Erie, 1975 and 1976 / 1979
Survey of marine communities in Panama and experiments with oil / 1976
Survey of Submersed Aquatic Vegetation of the Currituck Sound and the Western Albemarle-Pamlico Estuarine System. 1990
Survey of the benthic invertebrates collected from the United States 2800 meter radioactive waste disposal site in the Atlantic Ocean (final report) {MICROFICHE} 1983
Survey of the marine benthic infauna collected from the United States radioactive waste disposal sites off the Farallon Islands, California / 1983
Sustaining Soil Quality by Protecting the Soil Resource. 1992
System-Wide Submerged Aquatic Vegetation Model for the Chesapeake Bay. 2001
Systematic, Quantitative, and Ecological Comparison of 'Melosira islandica' O. Muell with M. granulata' (EHR.) Ralfs from the Laurentian Great Lakes. 1981
The Chesapeake Bay Program : project summaries / 1979
The common phytoplankton genera from eastern and southeastern lakes / 1979
The effect of saline seep on the biota of five reservoirs in Montana / 1977
The limnetic zooplankton of lakes in Katmai National Monument, Alaska / 1984
The limnology and biota of mine spoils ponds in northwest Colorado / 1979
The Strait of Juan de Fuca intertidal and subtidal benthos : second annual report, Spring 1977 - Winter 1978 / 1979
The validity of effluent and ambient toxicity tests for predicting biological impact, Naugatuck River, Waterbury, Connecticut / 1986
Thermal Discharge and its Effect on Macroinvertebrates and Periphyton in the Wabash and White Rivers, Indiana 1973
Toxicity of Dibutyl Phthalate-Contaminated Sediment to Laboratory- and Field-Colonized Estuarine Benthic Communities. 1986
Tributyltin and Invertebrates of a Seagrass Ecosystem: Exposure and Response of Different Species. 1990
Tritium and Radiocarbon in Hawaiian Natural Waters: Part I. 1972
Trophic equilibrium of Lake Washington / 1977
Upper Yellowstone River, Montana: Macroinvertebrate Distribution and Water Analysis 1973-1974. 1981
Use of small otter trawls in coastal biological surveys / 1978
Utilization Patterns of Intertidal Habitats by Birds in Yaquina Estuary, Oregon. 2011
UV exposure of coral assemblages in the Florida Keys/ 2003
Vegetation and Pollen Relationships in Eastern Canada. 1992
PREV 1 2 3 4 5 6 7 NEXT

Save, Print or Email Selected Records