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dc.contributor.authorFitzer, Susan Cen_UK
dc.contributor.authorMcGill, Rona A Ren_UK
dc.contributor.authorTorres Gabarda, Sergioen_UK
dc.contributor.authorHughes, Brianen_UK
dc.contributor.authorDove, Michaelen_UK
dc.contributor.authorO'Connor, Wayneen_UK
dc.contributor.authorByrne, Mariaen_UK
dc.description.abstractCommercial shellfish aquaculture is vulnerable to the impacts of ocean acidification driven by increasing carbon dioxide (CO2) absorption by the ocean as well as to coastal acidification driven by land run off and rising sea level. These drivers of environmental acidification have deleterious effects on biomineralization. We investigated shell biomineralization of selectively bred and wild‐type families of the Sydney rock oyster Saccostrea glomerata in a study of oysters being farmed in estuaries at aquaculture leases differing in environmental acidification. The contrasting estuarine pH regimes enabled us to determine the mechanisms of shell growth and the vulnerability of this species to contemporary environmental acidification. Determination of the source of carbon, the mechanism of carbon uptake and use of carbon in biomineral formation are key to understanding the vulnerability of shellfish aquaculture to contemporary and future environmental acidification. We, therefore, characterized the crystallography and carbon uptake in the shells of S. glomerata, resident in habitats subjected to coastal acidification, using high‐resolution electron backscatter diffraction and carbon isotope analyses (as δ13C). We show that oyster families selectively bred for fast growth and families selected for disease resistance can alter their mechanisms of calcite crystal biomineralization, promoting resilience to acidification. The responses of S. glomerata to acidification in their estuarine habitat provide key insights into mechanisms of mollusc shell growth under future climate change conditions. Importantly, we show that selective breeding in oysters is likely to be an important global mitigation strategy for sustainable shellfish aquaculture to withstand future climate‐driven change to habitat acidification.en_UK
dc.relationFitzer SC, McGill RAR, Torres Gabarda S, Hughes B, Dove M, O'Connor W & Byrne M (2019) Selectively bred oysters can alter their biomineralization pathways, promoting resilience to environmental acidification. Global Change Biology, 25 (12), pp. 4105-4115.
dc.rights© 2019 The Authors. Global Change Biology published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution License (, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_UK
dc.subjectcarbon pathwayen_UK
dc.subjectclimate changeen_UK
dc.subjectlow pHen_UK
dc.subjectSaccostrea glomerataen_UK
dc.subjectselectively bred familiesen_UK
dc.subjectSydney rock oysteren_UK
dc.titleSelectively bred oysters can alter their biomineralization pathways, promoting resilience to environmental acidificationen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitleGlobal Change Biologyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.funderNERC Natural Environment Research Councilen_UK
dc.contributor.funderAustralian Research Councilen_UK
dc.contributor.funderNatural Environment Research Councilen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationNERC Radiocarbon Facility (SUERC)en_UK
dc.contributor.affiliationUniversity of Sydneyen_UK
dc.contributor.affiliationHunter Local Land Servicesen_UK
dc.contributor.affiliationNew South Wales Department of Primary Industriesen_UK
dc.contributor.affiliationNew South Wales Department of Primary Industriesen_UK
dc.contributor.affiliationUniversity of Sydneyen_UK
dc.relation.funderprojectAn understanding of biomineralisation pathways is key to predict climate change impact on aquacultureen_UK
Appears in Collections:Aquaculture Journal Articles

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