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Search Results for the EPA National Library Catalog
Items Found: 419
Showing: Items 251 - 300
Your Search: (SUBJECT=Aquatic ecology)
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Year Published
251
Methods of dissolved oxygen budget analysis for assessing effects of dredged material disposal on biological community metabolism : final report /
1975
252
Middle Snake river biotic resrouces: a summary of literature in the Snake river water quality assessment database /
1992
253
Modeling biochemical processes in aquatic ecosystems /
1976
254
Modeling dynamics of biological and chemical components of aquatic ecosystems /
1975
255
Modeling environmental fate and ecological effects in aquatic ecosystems : AQUATOX (Release 2) /
2004
256
Modeling environmental fate and ecological effects in aquatic ecosystems : AQUATOX (Release 2).
2004
257
Modeling of chlorinated paraffins in three aquatic ecosystems : Draft /
1985
258
Modelling the transport and transformation of terrestrial materials to freshwater and coastal ecosystems : workshop report : recommendations for IGBP inter-programme element collaboration /
1997
259
Molecular ecology of aquatic communities
1999
260
National environmental watch prototype / [electronic resource] :
1994
261
New approaches to monitoring aquatic eco-systems : a symposium /
1987
262
Oil spill chemical dispersants : research, experience, and recommendations : a symposium sponsored by ASTM Committee F-20 on Hazardous Substances and Oil Spill Response, West Palm Beach, Florida, 12-13 Oct. 1982 /
1984
263
Organic materials in aquatic ecosystems
1982
264
Organic micropollutants in the aquatic environment : proceedings of the fifth European symposium held in Rome, Italy, October 20-22, 1987 /
1988
265
Organization and adaptation of aquatic laboratory ecosystems exposed to the pesticide dieldrin /
1982
266
Organization and adaptation of aquatic laboratory ecosystems exposed to the pesticide dieldrin /
1983
267
Our Great Lakes : what is happening to them, what it means and what you can do to help keep them great /
2005
268
Pesticides in aquatic environments /
1977
269
Phenolics in aquatic ecosystems : a selected review of recent literature /
1979
270
Phosphorus biogeochemistry in subtropical ecosystems /
1999
271
Photochemistry of environmental aquatic systems : developed from a symposium sponsored by the Divisions of Geochemistry and Environmental Chemistry at the 189th Meeting of the American Chemical Society, Miami Beach, Florida, April 28-May 3, 1985 /
1987
272
Physical and hydrologic characteristics of aquatic habitat associated with dike systems in the Lower Mississippi River, River Mile 320 to 610, AHP
1985
273
Phytoplankton species composition, size structure, and biomass and their possible effect on copepod food availability in the low salinity zone of the San Francisco Bay/Delta Estuary
1998
274
Plant community structure and physical-chemical regimes at the Vaucluse Shores study site : chapter 2, section A /
1981
275
Plant life in aquatic and amphibious habitats
1987
276
Pollution and the life in water /
1964
277
Pollution in tropical aquatic systems /
1992
278
Polycyclic aromatic hydrocarbons in the aquatic environment : sources, fates, and biological effects.
1979
279
Population biology in small Hawaiian streams
1982
280
Potential for biomagnification of contaminants within marine and freshwater food webs /
1984
281
Preliminary report on selected and developed indices for use in the detection, measurement and assessment of estuarine nutrient enrichment.
1979
282
Principles and methods for determining ecological criteria on hydrobiocenoses proceedings of the European Scientific Colloquium /
1976
283
Proceedings of annual analytical symposium (7th)
1984
284
Proceedings of the 1990 Clark Fork River Symposium, April 20, 1990, University of Montana, Missoula, Montana
1992
285
Proceedings of the 36th annual Aquatic Toxicity Workshop: September 27 to 30, 2009, La Malbaie, Québec = Comptes rendus du 36e atelier annuel sur la toxicité aquatique: du 27 au 30 septembre 2009, La Malbaie, Québec /
2010
286
Proceedings of the cross discipline ecosystem modeling and analysis workshop : August 15-17.
2000
287
Proceedings of the eighth annual Aquatic Toxicity Workshop : November 2-4, 1981, Guelph, Ontario /
1983
288
Proceedings of the first and second USA-USSR symposia on the effects of pollutants upon aquatic ecosystems.
1978
289
Proceedings of the Florida Acidic Deposition Conference : October 22-24, 1990, Tampa Hilton at Metro Center /
1991
290
Proceedings of the International Conference on Transport of Persistent Chemicals in Aquatic Ecosystems : Ottawa, Canada, May 1-3, 1974 = Comptes rendus de la Conférence internationale sur le transport des produits chimiques persistants dans les cosystèmes aquatiques : Ottawa, Canada, 1-3 Mai, 1974.
1974
291
Proceedings of the Tenth Pacific Northwest Symposium on Water Pollution Research : toxicity in the aquatic environment /
1961
292
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
293
Proceedings of the twelfth annual Aquatic Toxicity Workshop, November 5-8, 1985, Thunder Bay, Ontario = Comptes rendus des communications du douzième atelier annuel sur la toxicité aquatique du 5 au 8 novembre 1985, Thunder Bay, Ontario /
1986
294
Proceedings, 27th annual meeting, Aquatic Plant Control Research Program 16-19 November 1992, Bellevue, Washington /
1993
295
Proceedings, 28th Annual Meeting, Aquatic Plant Control Research Program 15-18 November 1993, Baltimore, Maryland /
1994
296
Production cycles in aquatic microcosms /
1977
297
Protecting aquatic ecosystems : a guide for Puget Sound planners to understand watershed processes /
2005
298
Protection of water resources and aquatic ecosystems
1993
299
Quality assurance guidelines for biology in aquatic environment protection
1991
300
Quantitative aquatic biological indicators : their use to monitor trace metal and organochlorine pollution /
1980
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