Search Results for the EPA National Library Catalog

Items Found: 949

Showing: Items 901 - 949



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Toxicity and Bioaccumulation of Hexachlorocyclopentadiene, Hexachloronorbornadiene and Heptachloronorbornene in Larval and Early Juvenile Fathead Minnows, 'Pimephales promelas'. 1979
Toxicity and Fate of Total Residual Chlorine in Outdoor Experimental Streams (Book Chapter). 1990
Toxicity in the aquatic environment; proceedings, 1961
Toxicity of chromium and fluoranthene from aqueous and sediment sources to selected freshwater fish / 1990
Toxicity of Parachlorobenzotrifluoride (pcbtf) to Fathead Minnow (pimephales Promelas) Embroys and Larvae. 2000
Toxicity of polychlorinated biphenyls (PCB's) to fish and other aquatic life 1977
Toxicity testing with fish, zooplankton and mussels : a comparison of sensitivities / 1989
Toxicological studies with herbicides, selected EPA priority pollutants and related chemicals in aquatic organisms / 1984
Tri-Isopropyl Silyl Acrylate (TIPSA): A 96-Hour Toxicity Test with the Freshwater Alga (Selenastrum capricornutum). 2002
Trout Distribution and Habitat in Relation to Geology and Geomorphology in the North Fork Humboldt River Drainage, Northeastern Nevada. 1994
Understanding the science behind riparian forest buffers : effects on plant and animal communities / 2000
Underwater and floating-leaved plants of the United States and Canada / 1967
Underwater operations in southeastern Lake Michigan near the Donald C. Cook Nuclear Plant during 1974 John A. Dorr III, Timothy J. Miller 1975
Upper Mississippi River System habitat needs assessment : summary report 2000 / 2000
User's manual for the National Water-Quality Assessment Program Invertebrate Data Analysis System (IDAS) software : version 3 / 2003
Using aquatic macroinvertebrates to assess stream condition in the Clackamas River Basin, Oregon 2001
Using fish tissue data to monitor remedy effectiveness {electronic resource} / 2008
Using mesocosms to assess the aquatic ecological risk of pesticides : theory and practice : a symposium / 1989
Utah Lake littoral community analyses: October 1978 / 1981
Utilization of phosphorus by phytoplankton in phosphorus-rich environments, 1974
Value and limitations of various approaches to the monitoring of water quality for freshwater fish 1978
Value of selected mussel beds in the upper Mississippi River for Lampsilis higginsi 1997
Variability of 'Stephanodiscus hantzschii Grun' (Ueber die Variabilitaet von 'Stephanodiscus hantzschii Grun'). 1974
Variability of crustacean zooplankton data generated by the Great Lakes National Program Office's annual water quality survey / 2003
Ventilatory Patterns of Bluegill ('Lepomis macrochirus') Exposed to Organic Chemicals with Different Mechanisms of Toxic Action (Revised). 1990
Verhandlungen der Internationalen Vereinigung fèur Theoretische und Angewandte Limnologie. 1922
Viral hemorrhagic septicemia and freshwater fisheries : the state of the science / 2008
Water and nutrient budgets for Cayuga Lake, New York / 1974
Water quality and biological investigations, South Umpqua River, Oregon 1979
Water quality criteria for European freshwater fish : report on cadmium and freshwater fish / 1977
Water quality criteria for European freshwater fish. : report on copper and freshwater fish / 1976
Water Quality Investigations Lake Michigan Basin. 1968
Water quality, organic chemistry of sediment, and biological conditions of streams near an abandoned wood-preserving plant site at Jackson, Tennessee 1993
Water war in the Klamath Basin : macho law, combat biology, and dirty politics / 2008
Water-quality assessment of the Albemarle-Pamlico Drainage Basin, North Carolina and Virginia organochlorine compounds in Asiatic clam (Corbicula fluminea) soft tissues and whole redbrest sunfish (Lepomis auritus) 1992-93 / 1995
Weed harvest and lake nutrient dynamics / 1973
West Virginia baseline 1981
Western basin nearshore 1978-1979 : benthic macroinvertebrates / 1981
Wetland Vegetation of the Prairie Pothole Region: Research Methods and Annotated Bibliography (North Dakota Research Report #85) 1981
Wetlands protection. 1988
What fish live in the streams of Metropolitan Atlanta? 1995
Wildstream : a natural history of the free-flowing river / 2000
Wisconsin fishes, 2000 : status and distribution / 2000
Work plan of activities, second year 1986
Zhongguo dan shui yu lei yuan se tu ji = The Freshwater fishes of China in coloured illustrations / 1982
Zoogeography of fresh waters 1990
Zooplankton community analysis : studies on a tropical system / 1979
Zooplankton of the Great Lakes : a guide to the identification and ecology of the common crustacean species / 1984
Zooplankton production in Lake Ontario as influenced by environmental perturbations / 1975
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