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Arsenic speciation in the freshwater crayfish, Cherax destructor Clark

Williams, Gemma, West, Jan M., Koch, Iris, Reimer, Kenneth J. and Snow, Elizabeth T. 2009, Arsenic speciation in the freshwater crayfish, Cherax destructor Clark, Science of the total environment, vol. 407, no. 8, pp. 2650-2658, doi: 10.1016/j.scitotenv.2008.12.065.

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Title Arsenic speciation in the freshwater crayfish, Cherax destructor Clark
Formatted title Arsenic speciation in the freshwater crayfish, Cherax destructor Clark
Author(s) Williams, Gemma
West, Jan M.ORCID iD for West, Jan M. orcid.org/0000-0003-1112-6082
Koch, Iris
Reimer, Kenneth J.
Snow, Elizabeth T.
Journal name Science of the total environment
Volume number 407
Issue number 8
Start page 2650
End page 2658
Total pages 9
Publisher Elsevier B.V.
Place of publication Netherlands
Publication date 2009-04-01
ISSN 0048-9697
Keyword(s) Arsenic
Cherax destructor
Crayfish
Speciation
Bioaccessibility
Summary

Arsenic is a proven carcinogen that is found in the soil in gold mining regions at concentrations that can be thousands of times greater than gold. During mining arsenic is released into the environment, easily entering surrounding water bodies.
The yabby (Cherax destructor) is a common freshwater crustacean native to Australia's central and eastern regions. Increasing aquaculture and export of these animals has led us to question the effects of mine contamination on the yabbies themselves and to assess any potential risks to consumers. This study determined the species of arsenic present in a number of organs from the yabby. Several arsenic contaminated dam sites in the goldfields of western Victoria were sampled for yabby populations. Yabbies from these sites were collected and analysed for arsenic speciation using high performance liquid chromatography–inductively coupled plasma-mass spectrometry (HPLC–ICP-MS). Results showed that type of exposure influenced which arsenic species was present in each organ, and that as arsenic exposure increased the prevalence of inorganic arsenic species, mostly As(V), within the tissues increased. The bioaccessibility of the arsenic present in the abdominal muscle (the edible portion for humans) of the yabbies was assessed. It was found that the majority of the bioaccessible arsenic was present as inorganic As (III) and As(V).

Language eng
DOI 10.1016/j.scitotenv.2008.12.065
Field of Research 060699 Physiology not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2009 Elsevier B.V
Persistent URL http://hdl.handle.net/10536/DRO/DU:30032265

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Created: Mon, 17 Jan 2011, 09:19:53 EST by Teresa Treffry

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