Record Display for the EPA National Library Catalog

RECORD NUMBER: 155 OF 516

OLS Field Name OLS Field Data
Main Title Field Studies on Sediment-Water Algal Nutrient Interchange Processes and Water Quality of Upper Klamath and Agency Lakes, July 1967-March 1969.
Author Gahle, A. R. ;
CORP Author Pacific Northwest Water Lab., Corvallis, Oreg.
Year Published 1969
Report Number Working Paper-66; FWPCA-16010; 06051,; FWPCA-16010-10/69
Stock Number PB-207 643
Additional Subjects ( Limnology ; Sediment transport) ; ( Nutrients ; Sediment transport) ; Lakes ; Algae ; Wind(Meteorology) ; Mixing ; Benthos ; Diffusion ; Water analysis ; Dissolved gases ; Oregon ; Phytoplankton ; Eutrophication ; Klamath Lake
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-207 643 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 61p
Abstract
Studies of algal nutrient interchange between sediment and water under environmental conditions were carried out in Upper Klamath Lake, Oregon. Experimental 'pools' of lake water in contact with the sediment and experimental pools of water not exposed to the sediment were compared with the open lake. Water quality measurements were made to determine whether interchange processes could be observed directly in the water, to establish conditions for laboratory interchange tests, and to compare lake conditions with the experimental pools. Interchange definitely occurred when Oscillatora floated to the lake surface with attached sediment which contained soluble nitrogen and phosphorus compounds. The effects of gas evolution, wind, currents, fish, boating, benthos, diffusion, etc., on the shallow lakes was not quantitatively determined, but it seems quite probable that anything that stirs the sediment causes interchange of nutrients. (Author)