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Arsenic speciation in the freshwater crayfish, Cherax destructor Clark


Williams, G and West, JM and Koch, I and Reimer, KJ and Snow, ET, Arsenic speciation in the freshwater crayfish, Cherax destructor Clark, Science of The Total Environment: An International Journal for Scientific Research Into The Environment and Its Relationship With Man, 407, (8) pp. 2650-2658. ISSN 0048-9697 (2009) [Refereed Article]

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Copyright 2009 Elsevier

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DOI: doi:10.1016/j.scitotenv.2008.12.065


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). © 2009 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Keywords:Arsenic, Cherax destructor, Crayfish, Speciation, Bioaccessibility
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Environmental assessment and monitoring
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Public health (excl. specific population health) not elsewhere classified
UTAS Author:Snow, ET (Associate Professor Elizabeth Snow)
ID Code:58459
Year Published:2009
Web of Science® Times Cited:32
Deposited By:Health Sciences A
Deposited On:2009-10-07
Last Modified:2012-12-03
Downloads:2 View Download Statistics

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