This study serves to investigate the uptake of POPs in the different trophic levels (scrapers, collectors, predators, shredders) of macroinvertebrate communities sampled from a glacial and a non-glacial stream in the Italian Alps. The presented results show that the contaminant concentrations in glacial communities are generally higher compared to those from non-glacial catchments, highlighting the importance of glaciers as temporary sinks of atmospherically transported pollutants. Moreover, the data also suggests that in mountain systems snow plays an important role in influencing macroinvertebrate contamination. The main chemical uptake process to the macroinvertebrates is considered to be bioconcentration from water, as similar contaminant profiles were observed between the different trophic levels. The role of biomagnification/bioaccumulation is thought to be absent or negligible. The enrichment of chemicals observed in the predators is likely to be related to their greater lipid content compared to that of other feeding groups

Bizzotto, E., Villa, S., & Vighi, M. (2009). POP bioaccumulation in macroinvertebrates of Alpine freshwater systems. ENVIRONMENTAL POLLUTION, 157(12), 3192-3198 [10.1016/j.envpol.2009.06.001].

POP bioaccumulation in macroinvertebrates of alpine freshwater systems

VILLA, SARA;VIGHI, MARCO
2009

Abstract

This study serves to investigate the uptake of POPs in the different trophic levels (scrapers, collectors, predators, shredders) of macroinvertebrate communities sampled from a glacial and a non-glacial stream in the Italian Alps. The presented results show that the contaminant concentrations in glacial communities are generally higher compared to those from non-glacial catchments, highlighting the importance of glaciers as temporary sinks of atmospherically transported pollutants. Moreover, the data also suggests that in mountain systems snow plays an important role in influencing macroinvertebrate contamination. The main chemical uptake process to the macroinvertebrates is considered to be bioconcentration from water, as similar contaminant profiles were observed between the different trophic levels. The role of biomagnification/bioaccumulation is thought to be absent or negligible. The enrichment of chemicals observed in the predators is likely to be related to their greater lipid content compared to that of other feeding groups
Articolo in rivista - Articolo scientifico
Scientifica
POPs, Aquatic macroinvertebrates, Kryal, Krenal , Alps
English
3192
3198
Bizzotto, E., Villa, S., & Vighi, M. (2009). POP bioaccumulation in macroinvertebrates of Alpine freshwater systems. ENVIRONMENTAL POLLUTION, 157(12), 3192-3198 [10.1016/j.envpol.2009.06.001].
Bizzotto, E; Villa, S; Vighi, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/7767
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