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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 334
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Your Search: (SUBJECT=Primary biological productivity)
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'Cladophora' as Related to Pollution and Eutrophication in Western Lake Erie.
A paleolimnological comparison of Burntside and Shagawa Lakes, Northeastern Minnesota /
Above- and Belowground Emergent Macrophyte Production and Turnover in a Coastal Marsh Ecosystem, Georgia.
Albert Lea Lake, Freeborn County, Minnesota.
Algae-Temperature-Nutrient Relationships and Distribution in Lake Erie - 1968.
Algal Growth and Decomposition: Effects on Water Quality, Phase II. Nutrient Regeneration, Composition, and Decomposition of Algae in Batch Culture.
Algal metabolite influence on bloom sequence in eutrophied freshwater ponds /
Allegheny Reservoir, McKean and Warren Counties, Pennsylvania and Cattaraugus County, New York.
Altoona Lake, Eau Claire County, Wisconsin.
Annual Nutrient Cycles in a Marine Microcosm.
Annual Phytoplankton Metabolism in Narragansett Bay Calculated from Survey Field Measurements and Microcosm Oberservations.
Appendix to Entrainment at a Once-Through Cooling System on Western Lake Erie. Volume II. Appendices.
Arrowhead Mountain Lake Chittenden and Franklin Counties Vermont.
Badger Lake, Polk County, Minnesota.
Barren River Reservoir, Allen and Barren Counties, Kentucky.
Bartlett Lake, Koochiching County, Minnesota.
Bay of Naples and Sebago Lake, Cumberland County, Maine.
Beach City Reservoir, Stark, and Tuscarawas Counties, Ohio.
Bear Lake, Freeborn County, Minnesota.
Berlin Reservoir, Mahoning, Portage, and Stark Counties, Ohio.
Big Creek Reservoir, Polk County, Iowa.
Big Eau Pleine Reservoir, Marathon County, Wisconsin.
Biological Effects of Wastes Discharged to the North Platte River, Torrington, Wyoming-Bridgeport, Nebraska November 14 and 15, 1962.
Biological Investigations of Lake Wingra.
Biological Investigations of Tuttle Creek Reservoir - Kansas.
Biological Models of Freshwater Communities.
Biological Survey of Harlan County Reservoir - Nebraska, August 1969.
Biological Survey of Milford Reservoir, Kansas, August 1969.
Biological Survey of Wilson Reservoir - Saline River, Kansas, August 1970.
Biological, chemical and physical relationships in the Straits of Mackinac /
Biostimulation Characteristics of Wastes and Receiving Waters of the Snake River Basin.
Birch Lake, Cass County, Minnesota.
Black Hawk Lake, Sac County, Iowa.
Blackduck Lake, Beltrami County, Minnesota.
Blackhoof Lake, Crow Wing County, Minnesota.
Browns Ferry biothermal research series /
Browns Ferry Biothermal Research Series. II. Effects of Temperature on Bluegill and Walleye, and Periphyton, Macroinvertebrate, and Zooplankton Communities in Experimental Ecosystems.
Budd Lake, Martin County, Minnesota.
Buffalo Lake, Wright County, Minnesota.
Butternut Lake, Ashland and Price Counties, Wisconsin.
Canandaigua Lake, Ontario and Yates Counties, New York.
Cannonsville Reservoir, Delaware County, New York.
Carry Falls Reservoir, St. Lawrence County, New York.
Cass Lake, Beltrami and Cass Counties, Minnesota.
Cayuga Lake, Cayuga, Seneca, and Tompkins Counties, New York.
Characteristics of nonpoint source urban runoff and its effects on stream ecosystems /
Chautauqua Lake, Chautauqua County, New York.
Chesapeake Bay : introduction to an ecosystem.
Chesapeake Bay program technical studies : a synthesis /
Clearwater Lake, Wright and Stearns Counties, Minnesota.
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