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Title: The effects of sediment-bound heavy metals on algae and importance of salinity
Language: English
Authors: Ahlf, Wolfgang 
Calmano, Wolfgang 
Förstner, Ulrich 
Issue Date: 1984
Source: Sediments and water interactions : proceedings of the 3. International Symposium on Interactions between Sediments and Water, held in Geneva, 1984 / ed. by Peter G. Sly, New York 1986, S. 319-24
Abstract (english): A bioassay has been carried out to determine the uptake of selected heavy metals from freshwater sediments by Ankistrodesmus bibraianus Korshikov and Entermorpha intestinalis Link. An apparatus was used in which a 0.45 µm pore diameter membrane separated the algae and sediments. When used with freshwater and sediments, this method indirectly demonstrated biological uptake from resuspended sediments. The amounts of metals accumulated in the test algae were compared to chemical associations of metals in sediments, but there were no clear relationships with geochemical phases. The observed relationships between growth and metal content of the algae indicated, based on biomass, that Cu reduced algal growth during the 96-h test period. The distributions of metals in water, sediments, and algae were influenced by salinity, and marked differences were apparent among the six elements studied.
DOI: 10.15480/882.404
Institute: Umwelttechnik und Energiewirtschaft V-9 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
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