Search Results for the EPA National Library Catalog

Items Found: 1223
Showing: Items 351 - 400
Your Search: (SUBJECT=Algae)

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Effects of Chlorendic Acid, A Priority Toxic Substances, on Laboratory Aquatic Ecosystems. 1983
Effects of Complex Effluents on Photosynthesis in Lake Erie and Lake Huron. 1988
Effects of Copper Sulfate on Certain Algae and Zooplankters in Winnisquam Lake, New Hampshire. 1970
Effects of cyanophage SAM-1 upon Microcystis aeruginosa / 1977
Effects of Diflubenzuron on a Complex Laboratory Stream Community. 1981
Effects of diversion and alum application on two eutrophic lakes / 1978
Effects of Drilling Fluids on 'Thalassia testudinum' and Its Epiphytic Algae. 1986
Effects of Enrichment on Lake Superior Periphyton. 1973
Effects of forest fertilization with urea on major biological components of small cascade streams, Oregon / 1979
Effects of Heated Waste Waters on Some Microorganisms. 1972
Effects of Heated Waste Waters Upon Microbial Communities. 1971
Effects of Industrial Effluents on Primary Phytoplankton Indicators. 1973
Effects of log handling and storage on water quality / 1976
Effects of mercury compounds on algae / 1973
Effects of Nitrogen Sources on P-Limited Growth of 'Anabaena Flos-Aquae'. 1983
Effects of oil shale leachate on phytoplankton productivity 1979
Effects of Organotins on Growth and Survival of Two Marine Diatoms, 'Skeletonema costatum' and 'Thalassiosira pseudonana'. 1985
Effects of p-Cresol on Photosynthetic and Respiration Rates of a Filamentous Green Alga (Spirogyra). 1983
Effects of pH and inorganic carbon concentrations upon competition between Anabaena flos-aquae and Selenastrum capricornutum 1977
Effects of PH and nitrogen sources on growth of several acidophilic algae in laboratory and field. 1970
Effects of phosphorus loading on phytoplankton distribution and certain aspects of cytology in Saginaw Bay, Lake Huron / 1983
Effects of Physical Gradients on the Production Dynamics of Sediment-Associated Algae. 1983
Effects of Plankton on Water Supplies in the Niagara River Area. 1948
Effects of pollutants on submarine plant synecology / 1977
Effects of Pollution on Biota of the Pigeon River, North Carolina and Tennessee. 1966
Effects of Pollution on Water Quality Perdido River and Bay, Alabama and Florida. 1970
Effects of Pulp and Paper Mill Effluents on Growth and Production of Fish. Phases I and II. 1972
Effects of roadway runoff on algae : final report / 1980
Effects of selected chlorinated hydrocarbon insecticides on C h l a m y d o m o n a s r e i n h a r d t i i 1973
Effects of selected wastewater chlorination products and captan on marine algae / 1977
Effects of size-selective predation on community structure in laboratory aquatic microcosms / 1972
Effects of size-selective predation on community structure in laboratory aquatic microcosms / 1972
Effects of Some Representative Petroleum Refinery Effluent Compounds on Photosynthesis and Growth of Natural Marine Phytoplankton Assemblages. Part 1. Cresols. 1981
Effects of suspended solids and sediment on reproduction and early life of warmwater fishes : a review / 1979
Effects of Synthetic Polyelectrolytes on Selected Aquatic Organisms. 1986
Effects of Thermal Pollution on Productivity and Stability of Estuarine Communities. 1971
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
Effects of Toxicants on Plankton. 1982
Effects of Ultraviolet-B Radiation on Primary Production along Latitudinal Transects in the South Pacific Ocean. 1993
Effects of UV Radiation on Plants in the Transition Region to Blue Light. 1985
Effects of Waste Discharges from Radford Army Ammunition Plant on the Biota of the New River, Virginia. 1973
Effects of water-column enrichment on the production dynamics of three seagrass species and their epiphytic algae / 1996
Effects of zooplankton on algae in Westhampton Lake 1971
Effects of Zooplankton on Algae in Westhampton Lake. 1971
Effects, uptake, and metabolism of methoxychlor, mirex, and 2,4-D in seaweeds / 1976
Effects, Uptake, and Metabolism of Methoxychlor, Mirex, and 2,4-D in Seaweeds. 1976
Elementary Mathematical Problem Arising in Diatom Taxonomy. 1981
Emerging technologies : Bio-Recovery Systems removal and recovery of metal ions from groundwater. 1990
Emerging Technologies: Bio-Recovery Systems Removal and Recovery of Metal Ions from Groundwater. Appendices. 1990
Endotoxins, Algae and 'Limulus' Amoebocyte Lysate Test in Drinking Water. 1980
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