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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 155
Showing: Items 1 - 50
Your Search: (SUBJECT=Trophic level)
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Actinomycete distribution in northern Green Bay and the Great Lakes : taste and odor relationships in eutrophication of nearshore waters and embayments /
Alum Control of Internal Phosphorus Loading in a Shallow Lake.
An approach to a relative trophic index system for classifying lakes and reservoirs : a preliminary anaysis of National Eutrophication Survey Data collected during the 1972 sampling period.
Applications of IBI Concepts and Metrics to Waters Outside the United States and Canada.
Barkley Lake, Stewart and Montgomery Counties, Tennessee; Trigg and Lyon Counties, Kentucky.
Biomagnification of Bioassay Derived 2,3,7,8-Tetrachlorodibenzo-p-Dioxin Equivalents.
Brush Lake, McLean County, North Dakota.
Cesium: Potassium Index of Food Web Structure and Biomagnification of Trace Elements in a Polluted Harbor of Southern California.
Chesapeake Bay : introduction to an ecosystem.
Clean Lakes Program guidance manual.
Comparison of some new and old indices and measurements of trophic state /
Comparisons of models predicting ambient lake phosphorus concentrations /
Compendium of Lake and Reservoir Data Collected by the National Eutrophication Survey in the Central United States.
Conceptual Ecological Model for Chesapeake Bay.
Conceptual Ecosystem Model of the Corpus Christi Bay National Estuary Program Study Area.
Coupling Water Quality and Upper Trophic Level Models for Chesapeake Bay: A Planning Workshop. Held in Annapolis, Maryland on January 8-9, 2004.
Dale Hollow Reservoir, Clinton and Cumberland Counties, Kentucky and Clay, Overton, and Pickett Counties, Tennessee.
Deerfield Lake, Pennington County, South Dakota.
Development of IBI Metrics for Lakes in Southern New England.
Distribution and importance of phytoplankton in the Atchafalaya Basin /
Distribution of phytoplankton in Arizona lakes /
Distribution of phytoplankton in Arkansas lakes /
Distribution of phytoplankton in Arkansas Lakes /
Distribution of phytoplankton in California lakes /
Distribution of phytoplankton in Colorado lakes /
Distribution of phytoplankton in Delaware lakes /
Distribution of phytoplankton in Florida lakes /
Distribution of phytoplankton in Georgia lakes /
Distribution of phytoplankton in Idaho lakes /
Distribution of phytoplankton in Illinois lakes /
Distribution of phytoplankton in Indiana lakes /
Distribution of phytoplankton in Kentucky lakes /
Distribution of phytoplankton in Maryland lakes /
Distribution of phytoplankton in Mississippi lakes /
Distribution of phytoplankton in Missouri lakes /
Distribution of phytoplankton in Montana lakes /
Distribution of phytoplankton in Nevada lakes /
Distribution of phytoplankton in New Jersey lakes /
Distribution of phytoplankton in New Mexico lakes /
Distribution of phytoplankton in Ohio lakes /
Distribution of phytoplankton in Oregon lakes /
Distribution of phytoplankton in South Carolina lakes /
Distribution of phytoplankton in Tennessee lakes /
Distribution of phytoplankton in Texas lakes /
Distribution of phytoplankton in Utah lakes /
Distribution of phytoplankton in Virginia lakes /
Distribution of phytoplankton in West Virginia lakes /
Distribution of phytoplankton in Wyoming lakes /
Ecoregions of the Upper Midwest States /
Effects of Canopy Modification and Accumulated Sediment on Stream Communities.
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