Variability of benthic macroinvertebrate biomass in two contrasting streams in southern Chile

Hydrobiologia ◽  
2021 ◽  
Author(s):  
Jorge Machuca-Sepúlveda ◽  
Pablo Fierro ◽  
Jorge Nimptsch
2014 ◽  
Vol 515 ◽  
pp. 83-95 ◽  
Author(s):  
P Pino-Pinuer ◽  
R Escribano ◽  
P Hidalgo ◽  
R Riquelme-Bugueño ◽  
W Schneider

10.3133/pp858 ◽  
1976 ◽  
Author(s):  
Raymond Charles Douglass ◽  
Merlynd Keith Nestell

1981 ◽  
Vol 16 (1) ◽  
pp. 45-58 ◽  
Author(s):  
G. Krantzberg ◽  
P.M. Stokes

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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