scholarly journals Benthic macroinvertebrate communities response on the fine sediment accumulation in mountain stream

2016 ◽  
Vol 15 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Aneta Bylak ◽  
◽  
Magdalena Wójcik
Keyword(s):  
Sediment Accumulation ◽  
Fine Sediment ◽  
Mountain Stream ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities

The Influence of Benthic Biota on Copper Speciation and Distribution in Freshwater-Sediment Systems

1981 ◽  
Vol 16 (1) ◽  
pp. 45-58 ◽  
Author(s):  
G. Krantzberg ◽  
P.M. Stokes
Keyword(s):  
Freshwater Sediment ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities ◽  
Copper Species ◽  
Copper Speciation ◽  
Physico Chemical ◽  
Macro Benthos

Abstract An investigation was made of the effects exerted by benthic macroinvertebrate communities on copper speciation in sediments from a lake which is becoming acidified. In laboratory microcosms, benthic macroinvertebrate communities stimulated the flux of copper from sediment to water. The presence of the macro-benthos resulted in a redistribution of physico-chemical copper species within the sediment with a transfer from more strongly complexed forms (HC1 extractable) to adsorbed and cation exchangeable forms (MgCl2 extractable). The role of bio-turbation in copper transformations is discussed.

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