Cadmium assimilation in the terrestrial isopod, Porcellio dilatatus--is trophic transfer important?

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Show simple item record Calhôa, CF Soares, AM Mann, RM 2010-05-28T09:45:31Z 2006-12
dc.identifier.citation The Science of the total environment, 2006, 371 (1-3), pp. 206 - 213
dc.identifier.issn 0048-9697
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract Terrestrial isopods have become important tools for the ecotoxicological assessment of metal-contaminated soils. Their value as an invertebrate model is partly because of their extraordinary capacity to bioaccumulate toxic metals from the environment. Replication of this accumulation process in the laboratory has in the past relied on the amendment of organic food substrates through the addition of inorganic metal salts. However, the bioavailability of the metals when presented through doping regimes may differ from the bioavailability of metals in nature, because over time metals become biologically compartmentalised and form complexes with organic molecules. This study examines the differential bioavailability of Cd to the terrestrial isopod, Porcellio dilatatus, when presented as either a Cd-amended diet or pre-incorporated biologically into lettuce (Lactuca sativa). Isopods were either provided with lettuce contaminated superficially with Cd(NO(3))(2) or lettuce grown hydroponically in growth media containing 100 microM Cd(NO(3))(2). Assimilation efficiency of Cd was greater among isopods that were fed the amended diet (71%, S.E.=7%), than among isopods feeding on biologically contaminated lettuce (52%, S.E.=5%) and demonstrates that speciation of Cd is likely to influence the rate of Cd assimilation and accumulation in a laboratory test.
dc.format Print-Electronic
dc.language eng
dc.relation.isbasedon 10.1016/j.scitotenv.2006.09.013
dc.title Cadmium assimilation in the terrestrial isopod, Porcellio dilatatus--is trophic transfer important?
dc.type Journal Article
dc.description.version Published
dc.parent The Science of the total environment
dc.journal.volume 1-3
dc.journal.volume 371
dc.journal.number en_US
dc.publocation Amsterdam, Netherlands en_US
dc.identifier.startpage 206 en_US
dc.identifier.endpage 213 en_US DVCRch.Institute for Water & Environmental Resource Mgmnt en_US
dc.conference Verified OK en_US
dc.conference 29th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society
dc.for 0602 Ecology
dc.personcode 998973
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US 2007-08-22
dc.location.activity en_US
dc.location.activity Lyon, FRANCE
dc.description.keywords Animals
dc.description.keywords Isopoda
dc.description.keywords Lettuce
dc.description.keywords Soil Pollutants
dc.description.keywords Environmental Monitoring
dc.description.keywords Body Burden
dc.description.keywords Biological Availability
dc.description.keywords Cadmium
dc.description.keywords Animal Feed
dc.description.keywords Feeding Behavior
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
pubs.consider-herdc false
utslib.collection.history Uncategorised (ID: 363)
utslib.collection.history Closed (ID: 3)

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