Does forest harvest increase the mercury concentrations in fish? Evidence from Swedish lakes

A number of studies have evaluated the effects of forest harvest on mercury (Hg) concentrations and exports in surface waters, but few studies have tested the effect from forest harvest on the change in fish Hg concentrations over the course of several years after harvest. To address this question,...

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Veröffentlicht in:	The Science of the total environment 2018-05, Vol.622-623, p.1353-1362
Hauptverfasser:	Wu, Pianpian, Bishop, Kevin, von Brömssen, Claudia, Eklöf, Karin, Futter, Martyn, Hultberg, Hans, Martin, Jaclyn, Åkerblom, Staffan
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Clearcutting Ecosystem Environmental Monitoring Environmental Sciences Fish hg Forest harvest Forestry practices Lakes - chemistry Mercury - metabolism Miljövetenskap Muscles - metabolism Perch Perches - metabolism Sweden Water Pollutants, Chemical - analysis Water Pollutants, Chemical - metabolism
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Zusammenfassung:	A number of studies have evaluated the effects of forest harvest on mercury (Hg) concentrations and exports in surface waters, but few studies have tested the effect from forest harvest on the change in fish Hg concentrations over the course of several years after harvest. To address this question, mercury (Hg) concentrations in perch (Perca fluviatilis) muscle tissue from five lakes were analyzed for two years before (2010−2011) and three years after (2013–2015) forest harvest conducted in 2012. Fish Hg concentrations in the clear-cut catchments (n=1373 fish specimens) were related to temporal changes of fish Hg in reference lakes (n=1099 fish specimen) from 19 lakes in the Swedish National Environmental Monitoring Programme. Small (length
ISSN:	0048-9697 1879-1026 1879-1026
DOI:	10.1016/j.scitotenv.2017.12.075