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Search Results for the EPA National Library Catalog
Items Found: 713
Showing: Items 601 - 650
Your Search: (SUBJECT=Aquatic Ecosystems)
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Title
Year Published
601
Stable Carbon Isotope Analysis of Nucleic Acids to Trace Sources of Dissolved Substrates Used by Estuarine Bacteria.
1990
602
Standard operating procedures for conducting acute and chronic aquatic toxicity tests with Eurytemora affinis, a Calanoid copepod /
1998
603
State of the New England environment 1970-2000 /
2000
604
Statistical Analysis of the Extensive Component of the Maryland Department of the Environment Stream Acidification Monitoring Program.
1996
605
Statistical Approach to Predicting Chronic Toxicity of Chemicals to Fishes from Acute Toxicity Test Data (for Microcomputers).
1992
606
Status of development of water quality criteria and advisories /
1989
607
Status of efforts to control aquatic debris /
1994
608
Stream Indicator and Design Workshop /
1993
609
Stream Indicator and Design Workshop /
1993
610
Stressor Identification (SI) at Contaminated Sites: Upper Arkansas River, Colorado.
2011
611
Stressor identification guidance document.
2000
612
Structural properties for determining mechanisms of toxic action /
1989
613
Studies on the Effect of Forest Insect Control with Ethylene Dibromide on Water Quality.
1963
614
Submerged Aquatic Vegetation Distribution in Tributaries of Tampa Bay.
1995
615
Substitute chemical program, the first year of progress : proceedings of a symposium /
1975
616
Summary of biological assessment programs and biocriteria development for states, tribes, territories, and interstate commissions : streams and wadeable rivers /
2002
617
Summary of fish habitat/water quality since the Silver fire of 1987 /
1996
618
Surface Waters Component of the Environmental Monitoring and Assessment Program (EMAP): An Overview.
1992
619
Survey of Interstate Pollution of the Bear River and Tributaries, Idaho-Utah, 1972.
1963
620
Survival of Brook Trout Embryos in Three Episodically Acidified Streams.
1993
621
Survival of the Fattest: Implications for Acute Effects of Lipophilic Chemicals on Aquatic Populations.
1990
622
Survival, Blood Osmolality, and Gill Morphology of Juvenile Yellow Perch, Rock Bass, Black Crappie, and Largemouth Bass Exposed to Acidified Soft Water.
1989
623
Suspension Feeders: A Workshop to Assess What We Know, Don't Know, and Need to Know to Determine Their Effects on Water Quality. Held in Hanover, Maryland on March 18-19, 2002.
2002
624
Symposium on Ballast Water Management and Aquatic Nuisance Species: Setting a Research Agenda for the Great Lakes. Held in Duluth, Minnesota on April 29, 1999.
1999
625
Synopsis of Discussion Session on Physicochemical Factors Affecting Toxicity. (Chapter 3).
1994
626
Synthetic Substrata for Propagation and Testing of Soil and Sediment Organisms.
1992
627
Technical guidance manual for performing wasteload allocations : Book VI : design conditions : Chapter 1 : Stream design flow for steady-state modeling /
1986
628
Technical support document for identification of Chesapeake Bay designated uses and attainability /
2003
629
Technical Support Document for the Albemarle-Pamlico Estuarine Study Comprehensive Conservation and Management Plan.
1993
630
Technical Support Document for U.S. EPA's Proposed Rule for Numeric Nutrient Criteria for Florida's Inland Surface Waters.
2009
631
Technical support manual : waterbody surveys and assessments for conducting use attainability analyses.
1983
632
Technical Support Manual: Waterbody Surveys and Assessments for Conducting Use Attainability Analyses. Volume 2: Estuarine Systems.
1992
633
Technical synthesis : scientific issues relating to temperature criteria for salmon, trout and char native to the Pacific northwest : a summary report submitted to the Policy Workgroup of the EPA Region 10 Water Temperature Criteria Guidance Project /
2001
634
Temperature simulation of the Snake river above lower Granite Dam using transect measurements and the CE-QUAL-W2 model
2002
635
Temporal Changes in the Benthos along a Pollution Gradient: Discriminating the Effects of Natural Phenomena from Sewage-Industrial Wastewater Effects.
1991
636
Testing and application of biomonitoring methods for assessing environmental effects of noxious algal blooms /
1990
637
The Des Plaines River Wetlands Project : wetlands for river water quality improvement.
1993
638
The Foundation for global action on persistent organic pollutants : a United States perspective /
2002
639
The Green Bay mass balance project : an advanced analytical model for environmental management.
1990
640
The Long Island Sound study : summary of the comprehensive conservation and management plan.
1994
641
The Mt. View projects : a community success story.
1993
642
The National Estuary Program : a ten-year perspective : demonstrating practical tools for watershed management through the National Estuary Program.
1998
643
The National Estuary Program after four years : a report to Congress.
1992
644
The National Estuary Program guidance : comprehensive conservation & management plans : content and approval requirements /
1992
645
The restoration of the Anacostia River : the report to Congress /
1992
646
The state of the bay : a characterization of the Galveston Bay ecosystem /
1994
647
The state of the New England environment, 1970-2000 : a report of our environmental quality for the 25th anniversary of Earth Day /
2000
648
The State of the New England environment, 1997 /
1997
649
The urban perspectives of acid rain : workshop summary /
1993
650
Total Maximum Daily Loads of Nitrogen and Phosphorus for Back River in Baltimore City and Baltimore County, Maryland. Final Report.
2005
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