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Search Results for the EPA National Library Catalog
Items Found: 334
Showing: Items 51 - 100
Your Search: (SUBJECT=Primary biological productivity)
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Title
Year Published
51
Climate Warming and the Carbon Cycle in the Permafrost Zone of the Former Soviet Union.
1993
52
Clyde Pond Orleans County Vermont.
1974
53
Cokato Lake, Wright County, Minnesota.
1974
54
Color-Infrared Aerial Photographic Interpretation and Net Primary Productivity of a Regularly Flooded North Carolina Salt Marsh.
1968
55
Como Lake, Walworth County, Wisconsin.
1975
56
Comparison of Two Methods to Assess the Carbon Budget of Forest Biomes in the Former Soviet Union.
1993
57
Compendium of lake and reservior data collected by the National Eutrophication Survey in the western United States
1978
58
Comprehensive management of phosphorus water pollution,
1974
59
Deep Creek Lake, Garrett County, Maryland.
1975
60
Deer Creek Reservoir, Fayette and Pickaway Counties, Ohio.
1975
61
Degradation of Riparian Leaves and the Recycling of Nutrients in a Stream Ecosystem.
1972
62
Delavan Lake, Walworth County, Wisconsin.
1974
63
Determination of a Nitrogen-Phosphorus Budget for Bayou Texar, Pensacola, Florida.
1972
64
Determination, Assessment, and Design of 'In-Stream Value' Studies for the Northern Great Plains Region.
1974
65
Dillon Reservoir - Blue River Study. Colorado, June, July, August - 1973.
1974
66
Dillon Reservoir, Muskingum County, Ohio.
1975
67
Distribution and Biotic Effects of Nutrients in Flathead Lake, Montana.
1975
68
Dynamics of Phytoplankton Blooms in Puget Sound, a Fjord in the Northwestern United States.
1974
69
Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminants in Lake Erie. Phase III. Parts 5, 6, and 7.
1973
70
Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminents in Lake Erie, Phase I and Phase II.
1971
71
Ecological Study of the Missouri River Prior to Channelization.
1974
72
Ecosystem Perspective on Potential Impacts of Drilling Fluid Discharges on Seagrasses.
1987
73
Ecosystems analysis of the Big Cypress Swamp and estuaries /
1973
74
Effect of Spectral Composition on Photosynthesis in Turbid Reservoirs. Photosynthetic Production in a Turbid Reservoir II. Details of an Incubation Model and Comments on the Effect of Light Quality on Photosynthesis.
1972
75
Effects of Canopy Modification and Accumulated Sediment on Stream Communities.
1981
76
Effects of Copper Sulfate on Certain Algae and Zooplankters in Winnisquam Lake, New Hampshire.
1970
77
Effects of Enrichment on Lake Superior Periphyton.
1973
78
Effects of Extreme Floods and Placer Mining on the Basic Productivity of Sub Arctic Streams.
1971
79
Effects of nutrient enrichment, light intensity, and temperature on growth of phytoplankton from Lake Huron /
1979
80
Effects of Physical Gradients on the Production Dynamics of Sediment-Associated Algae.
1983
81
Effects of Thermal Loading and Water Quality on Estuarine Primary Production.
1971
82
Effects of Thermal Loading and Water Quality on Estuarine Primary Production.
1970
83
Effects of Thermal Pollution on Productivity and Stability of Estuarine Communities.
1971
84
Effects of Three Emulsifying Agents Against Crude Oil on the Primary Productivity of an Experimental Community of Benthic Diatoms (Effets de Trois Agents Emulsionnants Anti-Petrole Sur la Productivite Primaire Dune Communaute Experimentale de Diatomees Benthiques).
1974
85
Effects of Ultraviolet-B Radiation on Primary Production along Latitudinal Transects in the South Pacific Ocean.
1993
86
Elbow Lake, St. Louis County, Minnesota.
1974
87
Embarrass Lake, St. Louis County, Minnesota.
1974
88
Estes Lake, York County, Maine.
1974
89
Estuarine Ecosystems and High Temperatures.
1972
90
Estuarine pollution control and assessment : proceedings of a conference.
1977
91
Estuarine Pollution, A Bibliography.
1973
92
Estuary Studies (161.3). Training Manual.
1972
93
Eutrophication of Lake Tahoe emphasizing water quality /
1974
94
Eutrophication of surface waters : Lake Tahoe's Indian Creek Reservoir /
1975
95
Eutrophication of Water Resources of New York State. Observations on Nutrient Limitation on Summer Phytoplankton in Cayuga Lake, 1967 and 1968.
1970
96
Evaluation of the algal assay procedure /
1976
97
Experimental Studies on Phytoplankton Succession in Cayuga Lake.
1973
98
Fate of Nitrogen in Aquatic Ecosystems.
1972
99
Field and Laboratory Investigations to Evaluate the Influence of Nitrilotriacetic Acid (NTA) on Eutrophication.
1970
100
Fontana Lake, Swain and Graham Counties, North Carolina.
1975
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