Search Results for the EPA National Library Catalog

Items Found: 899
Showing: Items 501 - 550
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Select Item Title Year Published
Introduction to freshwater vegetation 1984
Inventory of fish species within Dyke Marsh, Potomac River, (2001-2004) : final report / 2004
Inventory of selected freshwater-ecology studies from the New England Coastal Basins (Maine, New Hampshire, Massachusetts, Rhode Island), 1937-97 1999
Invertebrates in freshwater wetlands of North America : ecology and management / 1999
Investigation and monetary values of fish and freshwater mollusk kills / 2018
Investigation and monetary values of fish and freshwater mussel kills 2003
Investigations of freshwater surface microlayers 1974
Investigations of the role of physical-transport processe in determing ichthyoplankton distribution in the Potomac River 1975
Isolation of Dissolved Organic Matter from the Suwannee River Using Reverse Osmosis. 1994
Jordan River study, Utah, June-August 1972. 1973
Journal of freshwater ecology. 1981
Journal of the North American Benthological Society. 1986
Key to identifying freshwater invertebrates : through observable features. 2003
Keys to water quality indicative organisms (southeastern United States) / 1968
Keys to water quality indicative organisms of the southeastern United States / 1975
Laboratory procedure for estimating residue dynamics of xenobiotic contaminants in a freshwater food chain 1980
Laboratory studies of periphyton production and community metabolism in lotic environments / 1964
Lake Huron bibliography, with limited summaries / 1981
Lake Huron crustacean and rotifer zooplankton, 1980 : factors affecting community structure with an evaluation of water quality status / 1983
Lake Michigan studies special report. 0
Lake Superior periphyton in relation to water quality / 1972
Lake Union sediment investigation : Seattle, Washington, March 20-21, 1984 / 1985
Leachate testing and evaluation for freshwater sediments / 1994
Letter from Basf Corp to UEPA Re: Report on the Study of Palatinol A (Dep) (Zst Test Substance No. 92/187) in the Ames Test w/Attachments & Cover Letter Dated 05/06/1994 (Sanitized). 1994
Letter from BASF Corp to USEPA Regarding Submission of Health and Safety Data Subject to 8D Reporting with Attachments, Dated 05/05/1994 (Sanitized). 1994
Letter from Chemical Manufacturers Association to USEPA Regarding Information on the Enclosed Final Reports on 2-mercaptobenzothiazole with Attachments. 2000
Life of the pond 1967
Limnological methods / 1948
Limnological surveillance of the nearshore zone of Lake Erie in central and eastern Ohio : a proposal of research / 1978
Limnology now a paradigm of planetary problems / 1994
Lipids in freshwater ecosystems / 1999
Listing of aquatic biological stream investigations : June, 1968 to January, 1974 / 1974
Living waters : guiding the protection of freshwater biodiversity in Massachusetts / 2003
Long Term Toxicity Test (3 Months) of DC 345 Fluid with Cover Letter Dated 04/20/1994 (In French). 1994
Long Term Toxicity Tests (3 Months) of DC 345 Fluid with Cover Letter Dated 04/20/1994 (In French). 1994
Long-term benthic monitoring studies in the freshwater portion of the Potomac River : final report / 1992
Long-Term Ecological Measurements : report of a conference, Woods Hole, Massachusetts, March 16-18, 1977 / 1983
Lower Potomac River Basin : environmental assessment of stream conditions / 1998
Macroinvertebrate survey of the Allegheny River, New York, 1975 1980
Macroinvertebrate survey of the Delaware River in New York State 1982
Macroinvertebrate survey of the upper Hudson River, New York, 1972 : prepared for and in cooperation with Bureau of Monitoring & Surveillance, Division of Pure Waters, New York State Department of Environmental Conservation / 1974
Macrophyte surveys of littoral habitats in Great Lakes' areas of concern : the Bay of Quinte, Hamilton harbour, and Severn Sound, 1988 to 1991 / 1993
Man-made lakes : proceedings / 1966
Managing lakes and reservoirs / 2001
Managing river flows for biodiversity : balancing human demands and ecosystem needs / 2000
Marine and freshwater research. 1995
Mechanisms of Episodic Acidification in Low-Order Streams in Maine, USA. 1992
Mercury Concentrations in Fish in Lake Oahe, South Dakota, April 16 to September 27, 1972. 1973
Methods and measurements of periphyton communities : a review / 1979
Methods for assessment of fish production in fresh waters 1978
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