Dear colleagues,
We are pleased to announce a new paper published recently in Marine
Environmental Research:
Lavery TJ, Kemper CM, Sanderson K, Schultz CG, Coyle P, Mitchell JG, Seuront
L. 2009. Heavy metal toxicity of kidney and bone tissues in South Australian
adult bottlenose dolphins (Tursiops aduncus). Marine Environmental Research,
67, 1 - 7.
A PDF is available upon request: [email protected]
ABSTRACT
Metallothioneins (MT) concentration, renal damage, and bone malformations were
investigated in 38 adult
observed in dolphins showing evidence of more advanced renal damage. No
significant differences in metal or selenium concentrations in the liver were
observed between groups differing in level of bone malformations. Some dolphins
displayed evidence of toxicity and knowledge of metal toxicity pathways were
used to elucidate the cause of these abnormalities. Two dolphins had high metal
burdens, high MT concentrations, renal damage, and evidence of bone
malformations, indicating possible severe and prolonged metal toxicity. One
dolphin showed evidence of renal damage, but the lack of any other symptoms
suggests that this was unlikely to be caused by metal toxicity. We recommend
examining a range of metal toxicity symptoms simultaneously to aid in
distinguishing metal toxicity from unrelated aetiologies.
The current work follows from a previous paper which documented high levels of
some metals in South Australian bottlenose dolphins: Lavery TJ, Butterfield N,
Kemper CM, Reid T, Sanderson K. 2008. Metals and selenium in the liver and
bone of three dolphin species from South Australia, 1988 - 2004. Science of
the Total Environment, 390, 77 - 85.
Kindest thanks for your interest,
Trish J Lavery
PhD candidate
Flinders University
[email protected]
https://www.scieng.flinders.edu.au/biology/people/academic/mitchell_j/msl/mswebsite_ppl_lavery.htm
http://www.scieng.flinders.edu.au/biology/people/postgrad/lavery_t/index.htmlTursiops
aduncus carcasses to determine any associations with cadmium, copper, zinc,
mercury, lead and selenium. Significantly higher concentrations of cadmium,
copper, and zinc in the liver were
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