Australian freshwater bivalves: Their applications in metal pollution studies

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dc.contributor.author Jeffree, Ross en_US
dc.contributor.author Markich, Scott en_US
dc.contributor.author Brown, Paul en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T06:32:48Z
dc.date.available 2012-02-02T06:32:48Z
dc.date.issued 1995 en_US
dc.identifier 2010004004 en_US
dc.identifier.citation Jeffree Ross, Markich Scott, and Brown Paul 1995, 'Australian freshwater bivalves: Their applications in metal pollution studies', Australasian Society for Ecotoxicology, vol. 1, no. 1, pp. 33-41. en_US
dc.identifier.issn 1323-3475 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/14774
dc.description.abstract ABSTRACT: Australian freshwater bivalves possess a variety of attributes which make them particularly useful in both fundamental and applied studies of metal and radionuclide pollution. This paper focuses on the capacity of several species of freshwater bivalves (lile.sunio angasi, lilesunio amb#guuJ and HyrideOa depTeJfa) to bioaccumulate a variety of metals, in the context ofa mechanistic and predictive model of metal kinetics, which has demonstrated that (a) many metals are absorbed from the aquatic medium as metabolic analogues of Ca, to be deposited in extracellular calcium phosphate granules, and (b) that their differential rates ofloss from the soft tissue are controlled by their solubilities in the granules .. Several environmental applications that follow from these findings are that: (a) Ca water concentration is a major variable controlling the bioavailability of many metals in the aquatic medium. The implication of these results, which are also consistent with those for a variety of metals and freshwater phyla, is that the water quality criteria for the protection of freshwater life should employ Ca water concentration, rather than total water hardness, as the major variable that can ameliorate the toxicity of many metals in freshwater environments; and (b) Ca tissue concentration can be used to explain up to 98% of the variability between individuals in their tissue concentrations of a variety of metals .. This permits the establishment of background or preoperational metal levels, against which future increases can be readily discerned. Investigations that have commenced on the use of the shell micro laminations (i .. e .. nacre tablets) of two species offreshwater bivalves (Micrvanodonta anodontaiform#s and H. depwsa) as archival monitors of metal concentrations in water have shown: en_US
dc.language en_US
dc.publisher Australasian Society for Ecotoxicology en_US
dc.title Australian freshwater bivalves: Their applications in metal pollution studies en_US
dc.parent Australasian Journal of Ecotoxicology en_US
dc.journal.volume 1 en_US
dc.journal.number 1 en_US
dc.publocation Sydney en_US
dc.identifier.startpage 33 en_US
dc.identifier.endpage 41 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 050000 en_US
dc.personcode 110409 en_US
dc.personcode 0000068951 en_US
dc.personcode 0000068960 en_US
dc.percentage 100 en_US
dc.classification.name Environmental Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords freshwater, bivalve, metal, bioaccumulation, shell, predictive model en_US
dc.staffid en_US


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