A mechanistic and predictive model of metal accumulation by the tissue of the Australian freshwater mussel Felesunio angasi

Jeffree, R; Brown, PL

A mechanistic and predictive model of metal accumulation by the tissue of the Australian freshwater mussel Felesunio angasi

Jeffree, R Brown, PL

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Publisher:: Elsevier Inc
Publication Type:: Journal Article
Citation:: The Science of the Total Environment, 1992, 125 pp. 85 - 95
Issue Date:: 1992-01

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Field	Value	Language
dc.contributor.author	Jeffree, R	en_US
dc.contributor.author	Brown, PL	en_US
dc.date.issued	1992-01	en_US
dc.identifier.citation	The Science of the Total Environment, 1992, 125 pp. 85 - 95	en_US
dc.identifier.issn	0048-9697	en_US
dc.identifier.uri	http://hdl.handle.net/10453/14707
dc.description.abstract	A mechanistic model explains the differential rates of accumulation of alkaline-earths in the tissue of the freshwater mussel Velesunio angasi as being determined by their different loss rates. These rates of loss are hypothesised to be directly related to the solubility of the alkaline-earth metal when deposited in phosphate-bearing, extracellular granular deposits that are dispersed throughout the tissue. This model is further tested by an experimental determination and comparison of the biological half-lives of the non-alkaline earths 2t°pb, 6°Co with that of 45Ca in the mussel's tissue, that are predicted to vary in their solubilities as phosphates. The experimental results indicated that the ranking of biological half-lives of these elements is 21°pb > 6°C0 ~ 45Ca. These results are in accord with their predicted solubility constants and previous experimental studies, and hence are consistent with the model. Several assumptions that are implicit in this model are presented and compared for consistency with findings from other studies on V. angasi and other species of freshwater mussels.	en_US
dc.publisher	Elsevier Inc	en_US
dc.relation.ispartof	The Science of the Total Environment	en_US
dc.relation.isbasedon	10.1016/0048-9697(92)90384-5	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.title	A mechanistic and predictive model of metal accumulation by the tissue of the Australian freshwater mussel Felesunio angasi	en_US
dc.type	Journal Article
utslib.citation.volume	125	en_US
utslib.for	0405 Oceanography	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.volume	125	en_US

Abstract:

A mechanistic model explains the differential rates of accumulation of alkaline-earths in the tissue of the freshwater mussel Velesunio angasi as being determined by their different loss rates. These rates of loss are hypothesised to be directly related to the solubility of the alkaline-earth metal when deposited in phosphate-bearing, extracellular granular deposits that are dispersed throughout the tissue. This model is further tested by an experimental determination and comparison of the biological half-lives of the non-alkaline earths 2t°pb, 6°Co with that of 45Ca in the mussel's tissue, that are predicted to vary in their solubilities as phosphates. The experimental results indicated that the ranking of biological half-lives of these elements is 21°pb > 6°C0 ~ 45Ca. These results are in accord with their predicted solubility constants and previous experimental studies, and hence are consistent with the model. Several assumptions that are implicit in this model are presented and compared for consistency with findings from other studies on V. angasi and other species of freshwater mussels.

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http://hdl.handle.net/10453/14707