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Search Results for the EPA National Library Catalog
Items Found: 899
Showing: Items 551 - 600
Your Search: (SUBJECT=FRESHWATER)
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Title
Year Published
551
Methods for characterizing stream habitat as part of the National Water-Quality Assessment Program /
1993
552
Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program /
1993
553
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates.
1994
554
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates.
2000
555
Methods for the estimation of production of aquatic animals /
1971
556
Methylethylketoxime Report with Cover Letter dated 021287.
1987
557
Microbial processes in reservoirs
1985
558
Microorganic matter in water : a symposium presented at the seventy-first annual meeting, American Society for Testing and Materials, San Francisco, Calif., 23-28 June, 1968.
1969
559
Middle Potomac River Basin : environmental assessment of stream conditions /
1998
560
Midwestern wetland flora : field office guide to plant species /
1997
561
Minimum oxygen levels survived by stream invertebrates
1974
562
Mining and the freshwater environment
1988
563
Missouri Naiades : a guide to the mussels of Missouri /
1995
564
Modeling the fate of toxic organic materials in aquatic environments /
1982
565
Modeling the fate of toxic organic materials in aquatic environments /
1982
566
Modeling the fate of toxic organic materials in aquatic environments /
1982
567
Monetary values of freshwater fish and fish-kill counting guidelines /
1982
568
Mosquito Control Pesticides: Adverse Impacts to Freshwater Aquatic and Marine Organisms.
1991
569
Multilevel Pumping Wells as a Means for Remediating a Contaminated Coastal Aquifer.
1992
570
Multiyear synthesis of the fish component from 1993 to 2002 for the Long Term Resource Monitoring Program /
2005
571
Multiyear synthesis of the macroinvertebrate component from 1992 to 2002 for the Long Term Resource Monitoring Program /
2004
572
National list of plant species that occur in wetlands : 1988 national summary /
1988
573
National list of plant species that occur in wetlands : national summary /
1988
574
National list of plant species that occur in wetlands : south plains (region 6) /
1988
575
National list of plant species that occur in wetlands Northeast (Region 1) /
1988
576
National list of plant species that occur in wetlands. Southeast (Region 2) /
1988
577
National Recommended Water Quality Criteria, 2009.
2009
578
Naturally occurring organic compounds and algal growth in a eutrophic lake
1975
579
Near shore plants of Lake Whatcom, Northwest Washington
1972
580
New Hampshire Estuaries Project: Hydrologic Parameters for New Hampshire's Estuaries, 2007.
2007
581
New Hampshire Estuaries Project: Summary of Freshwater Monitoring Programs in New Hampshire's Coastal Watershed. Recommendations for the NHEP Monitoring Program.
2004
582
New Zealand journal of marine and freshwater research.
1967
583
Nine Toxicity Studies on Diisopropylamine with Cover Letter dated 02/22/1988.
1988
584
Ninety-Six Hour Toxicity Test with the Freshwater Alga (Selenastrum capicomutum).
2005
585
Ninety-Six Toxicity Test with the Freshwater Algae (Selenastrum Capricornutum).
2005
586
Nitrogen and phosphorus limitation of phytoplankton in northeastern Minnesota lakes /
1992
587
Nitrogen recycling in the Chowan River /
1977
588
Non-Regulated Study: Acute Toxicity of Dow Corning 2-1870 Microemulsion to the Bluegill Sunfish, Lepomis Macrochirus Rafinesque-Range Finding Study, with Cover Letter dated 08/24/1998.
1998
589
Nonindigenous fishes introduced into inland waters of the United States /
1999
590
Nonindigenous freshwater organisms : vectors, biology, and impacts /
2000
591
Nordic journal of freshwater research.
1988
592
Northeast wetland flora : field office guide to plant species /
0
593
Northern fishes : with special reference to the Upper Mississippi Valley /
1974
594
Northern fishes with special reference to the Upper Mississippi Valley /
1960
595
Notes on Mayfly Nymphs from Northeastern Minnesota Which Key to 'Stenonema vicarium' (Ephemeroptera: Heptageniidae).
1978
596
Nutrient and chlorophyll relations in selected streams of the New England Coastal Basins in Massachusetts and New Hampshire, June-September 2001
2003
597
Nutrient sources for algae and their control /
1971
598
Nutrients and primary production in a warm-water stream /
1969
599
Nutritional (dietary) gill disease, and other less known gill diseases of fresh-water fishes /
1958
600
Oil in freshwater : chemistry, biology, countermeasure technology : proceedings of the Symposium of Oil Pollution in Freshwater, Edmonton, Alberta, Canada
1987
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