Arsenic concentration and speciation in five freshwater fish species from Back Bay near Yellowknife, NT, CANADA.

Environmental Monitoring and Assessment
Simone de RosemondKarsten Liber

Abstract

The concentration of total arsenic and five different arsenic species [As(III), As(V), monomethylarsonic acid (MMA), dimethylarsenic acid (DMA), and arsenobetaine (AsB)], were measured in the muscle, liver and gastrointestinal tract (GIT) of five different fish species [lake whitefish (Coregonus clupeaformis), walleye (Stizostedion vitreum), northern pike (Esox lucius), white sucker (Catostomus commersoni) and longnose sucker (Catostomus catostomus)] from Back Bay, Great Slave Lake, near the city of Yellowknife, NT, Canada. The total concentration (dry weight) of arsenic in muscle ranged from 0.57 to 1.15 mg/kg, in the liver from 0.42 to 2.52 mg/kg and in the GIT from 1.48 to 8.92 mg/kg. Among fish species, C. commersoni had significantly higher total arsenic concentrations in the GIT than S. vitreum, E. lucius and C. clupeaformis, and higher total arsenic concentrations in the liver than C. clupeaformis. The mean concentration of As(III) and As(V) in the muscle of all fish ranged from < or =0.01 to 0.05 mg/kg and < or =0.01 to 0.02 mg/kg, respectively, and together comprised < or =7.5% of the total arsenic measured in muscle. The concentrations of MMA were below detection in the muscle of all five fish species. However, AsB an...Continue Reading

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Citations

Dec 19, 2012·Environmental Science and Pollution Research International·Zhang ChengMing-Hung Wong
Mar 31, 2016·Microbial Ecology·Nawaf A NasserLisa A Neville
May 27, 2016·Environmental Science and Pollution Research International·Mohammad RaknuzzamanShigeki Masunaga
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Dec 30, 2016·Bulletin of Environmental Contamination and Toxicology·Fen YangShaowen Xie
Mar 6, 2019·International Journal of Environmental Research and Public Health·Jia PeiWenhong Fan
Nov 18, 2020·Environmental Toxicology and Chemistry·Caitlyn DonadtMark S Poesch

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