Australian freshwater bivalves: Their applications in metal pollution studies

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Show simple item record Jeffree, R Markich, SJ Brown, PL 2012-02-02T06:32:48Z 1995-01
dc.identifier.citation Australasian Journal of Ecotoxicology, 1995, 1 (1), pp. 33 - 41
dc.identifier.issn 1323-3475
dc.identifier.other C1UNSUBMIT en_US
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:
dc.format Esha Dutt
dc.publisher Australasian Society for Ecotoxicology
dc.title Australian freshwater bivalves: Their applications in metal pollution studies
dc.type Journal Article
dc.parent Australasian Journal of Ecotoxicology
dc.journal.volume 1
dc.journal.volume 1
dc.journal.volume 1
dc.journal.number 1 en_US
dc.publocation Sydney en_US
dc.identifier.startpage 33 en_US
dc.identifier.endpage 41 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 05 Environmental Sciences
dc.personcode 110409
dc.percentage 100 en_US Environmental Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords freshwater, bivalve, metal, bioaccumulation, shell, predictive model
dc.description.keywords freshwater, bivalve, metal, bioaccumulation, shell, predictive model
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
pubs.consider-herdc false
utslib.collection.history Closed (ID: 3)

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