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RECORD NUMBER: 137 OF 209

OLS Field Name OLS Field Data
Main Title Phosphorus Bioavailability of Fluvial Sediments Determined by Algal Assays.
Author Ellis, B. K. ; Stanford, J. A. ;
CORP Author Montana Univ., Polson. Flathead Lake Biological Station.;Environmental Research Lab.-Duluth, MN.
Publisher c1988
Year Published 1988
Report Number EPA-R-812071; EPA/600/J-88/459;
Stock Number PB90-147661
Additional Subjects Sediments ; Banks(Waterways) ; Flathead Lake ; Phosphorus ; Algae ; Bioassay ; Aquatic biology ; Montana ; Reprints ; Biological availability ; Selenastrum capricornutum
Holdings
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Status
NTIS  PB90-147661 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/15/1990
Collation 11p
Abstract
Eroding bank soils and riverine suspended sediments from the Flathead River-Lake ecosystem, Montana, USA, were cultured with the alga Selenastrum capricornutum Printz in PAAP medium with the sediments as the sole source of phosphorus. Extraction of phosphorus by NaOH and nitrilotriacetic acid (NTA) solutions were compared to results from algal bioassays. The fine sediment particles transported into Flathead Lake during spring runoff had the highest availability (i.e., 6% of total phosphorus). Bank soils which contained the greatest percentage of fine clays exhibited similar (i.e., 4% of total phosphorus) availability. Bank soils containing predominantly organic phosphorus had the lowest availability. Spearman's rank correlation indicated significance at the 5% test level between algal assay estimates of available phosphorus and both chemical extraction techniques. (Copyright (c) Dr. W. Junk Publishers, Dordrecht 1988.)