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Search Results for the EPA National Library Catalog
Items Found: 387
Showing: Items 301 - 350
Your Search: (SUBJECT=Fresh Water biology)
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Title
Year Published
301
Phenol : ambient water quality criteria.
1978
302
Phthalate esters : ambient water quality criteria.
1978
303
Phytoplankton water quality relationships in U.S. lakes /
1979
304
Pigment Indices and Environmental Oxygen Stress.
1968
305
Plankton Associations and Related Factors in a Hipereutrophic Lake.
1971
306
Plant Available Phosphorus Status of Lakes.
1971
307
Polychlorinated biphenyls : ambient water quality criteria..
1978
308
Polynuclear aromatic hydrocarbons : ambient water quality criteria.
1979
309
Potential for Transduction of Plasmids in a Natural Freshwater Environment: Effect of Plasmid Donor Concentration and a Natural Microbial Community on Transduction in 'Pseudomonas aeruginosa'.
1987
310
Predicting Single-Species Toxicity in Natural Water Systems.
1985
311
Preliminary Ecological Study of Areas to be Impounded in the Salt River Basin of Kentucky.
1971
312
Proceedings of the fifth symposium - Pacific Northwest on siltation - its sources and effects on the aquatic environment /
1959
313
Proceedings of the first and second USA-USSR symposia on the effects of pollutants upon aquatic ecosystems.
1978
314
Proceedings of the third USA-USSR Symposium on the effects of pollutants upon aquatic ecosystems : theoretical aspects of aquatic toxicology, July 2-6, 1979, Borok, Jaroslav Oblast, USSR /
1980
315
Proceedings Workshop on Toxic Metals in Water.
1971
316
Production cycles in aquatic microcosms /
1977
317
Production of Extracellular Nucleic Acids by Genetically Altered Bacteria in Aquatic-Environment Microcosms.
1989
318
Project HYPO. An Intensive Study of the Lake Erie Central Basin Hypolimnion and Related Surface Water Phenomena.
1972
319
Proposed Criteria for Water Quality. Volume I.
1973
320
Proposed Water Quality Guidance for the Great Lakes System.
1993
321
Radiation Protection Guides and Dose Assessment.
1964
322
Report on Bear Lake, Rich County, Utah, and Bear lake County, Idaho : EPA Region X /
1977
323
Report on Boysen Reservoir, Fremont County, Wyoming : EPA Region VIII / [U.S. Environmental Protection Agency, National Eutrophication Survey] /
1977
324
Report on Grand Lake, Chicot County, Arkansas : EPA Region VI /
1977
325
Report on Greer's Ferry Reservoir, Van Buren and Cleburne Counties, Arkansas : EPA Region VI /
1977
326
Report on Hells Canyon Reservoir, Baker and Wallowa Counties, Oregon [and] Adams and Idaho Counties, Idaho : EPA Region X /
1978
327
Report on Johnson Reservoir, Dawson and Gosper Counties, Nebraska : EPA Region VII /
1976
328
Report on Lake Bastrop, Bastrop County, Texas : EPA Region VI /
1977
329
Report on Lake Effie, Polk County, Florida : EPA Region IV /
1977
330
Report on Lake Meredith, Hutchinson, Moore, and Potter Counties, Texas.
1977
331
Report on Lakes Ouachita, Hamilton, and Catherine, Montgomery, Garland, and Hot Springs Counties, Arkansas : EPA Region VI /
1977
332
Report on Nimrod Lake, Perry and Yell Counties, Arkansas : EPA Region VI /
1977
333
Report on Ocean Lake, Fremont County, Wyoming : EPA Region VIII /
1977
334
Report on Payette Lake, Valley County, Idaho : EPA Region X /
1977
335
Report on Sherman Reservoir, Sherman County, Nebraska : EPA Region VII /
1976
336
Report on Viva Naughton Reservoir, Lincoln County, Wyoming : EPA Region VIII / [U.S. Environmental Protection Agency, National Eutrophication Survey] /
1977
337
Review of Methods for the Analysis of Chlorophyll in Periphyton and Plankton of Marine and Freshwater Systems.
1986
338
Revised Estimates of Power Plant Entrainment of Ichthyoplankton in Western Lake Erie in 1975-77.
1987
339
Rock Creek Lake, Jasper County, Iowa.
1976
340
Russian-English glossary of hydrobiology /
1958
341
Science Advisory Board Review of the Water Quality Criteria Document for Dissolved Oxygen.
1986
342
Seasonal effects on temperature preference in yellow perch, Perca flavescens /
1977
343
Second Annotated bibliography on biological effects on [i.e. of] metals in aquatic environments (no. 568-1292) /
1975
344
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms /
1989
345
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms /
1994
346
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms /
1985
347
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms. Supplement /
1989
348
Sorption and Toxicity of Azo and Triphenylmethane Dyes to Aquatic Microbial Populations.
1985
349
Species of Genus Melosira AG. of Amur River Plankton (O Vidakh roda Melosira ag. Planktona reki Amur).
1974
350
Streams, lakes, ponds /
1954
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