Show simple item record

dc.contributor.authorO'Mara, Kaitlyn
dc.contributor.authorAdams, Merrin
dc.contributor.authorBurford, Michele A
dc.contributor.authorFry, Brian
dc.contributor.authorCresswell, Tom
dc.date.accessioned2019-08-27T01:49:56Z
dc.date.available2019-08-27T01:49:56Z
dc.date.issued2019
dc.identifier.issn0048-9697
dc.identifier.doi10.1016/j.scitotenv.2019.07.016
dc.identifier.urihttp://hdl.handle.net/10072/386712
dc.description.abstractFishery targeted species living in estuaries face multiple anthropogenic pressures including habitat contamination. However, trace metal concentrations in aquatic organisms can be highly variable, making it difficult to interpret accumulation responses. Understanding sources for metal accumulation in these organisms and their biokinetics is important for management of local fisheries and ensuring safety and quality of consumed seafood, particularly in urbanised areas. In this study, we exposed Australian sand clams, school prawns and sand whiting to a combination of cadmium (Cd), manganese (Mn) and zinc (Zn) radioisotopes 1) dissolved in seawater, 2) adsorbed to suspended sediment particles and 3) in radiolabelled food. Sand clams were sensitive to Cd, Mn and Zn uptake and accumulation from all sources because of their filter feeding physiology. Mean Cd and Zn assimilation efficiencies (AE) were higher in clams fed benthic diatoms (51, 43, 63% for Cd, Mn and Zn, respectively) than clams fed an algal flagellate species (22, 32, 33% for Cd, Mn and Zn, respectively). Metal uptake by prawns from seawater was low, whereas assimilation from diet was high (67, 59, 64% mean AEs from Cd, Mn and Zn, respectively). Sand whiting did not accumulate metals from seawater, even after concentrations were increased. Assimilation from diet (labelled prawns) was also low for sand whiting, particularly for Cd and Zn (11, 26, 14% mean AEs from Cd, Mn and Zn, respectively). These results may help explain the persistence of sand whiting in contaminated estuaries. Suspended sediment exposures showed that prawns and fish are less likely than clams to be negatively affected by disturbance events such as floods, which can bring metals into estuaries. The findings of this study have implications for fisheries management, both for protection and remediation of important habitats, and to ensure safe standards for seafood consumption by humans.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom867
dc.relation.ispartofpageto877
dc.relation.ispartofjournalScience of the Total Environment
dc.relation.ispartofvolume690
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchcode41
dc.subject.keywordsCadmium
dc.subject.keywordsFish
dc.subject.keywordsManganese
dc.subject.keywordsMetal
dc.subject.keywordsPrawn
dc.titleUptake and accumulation of cadmium, manganese and zinc by fisheries species: Trophic differences in sensitivity to environmental metal accumulation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationO'Mara, K; Adams, M; Burford, MA; Fry, B; Cresswell, T, Uptake and accumulation of cadmium, manganese and zinc by fisheries species: Trophic differences in sensitivity to environmental metal accumulation., Science of the Total Environment, 2019, 690, pp. 867-877
dcterms.dateAccepted2019-07-02
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2019-08-27T01:41:55Z
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2019 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorBurford, Michele A.
gro.griffith.authorO'Mara, Kaitlyn M.
gro.griffith.authorFry, Brian D.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record