Ocean acidification but not warming alters sex determination in the Sydney rock oyster, Saccostrea glomerata.

Parker, LM; O'Connor, WA; Byrne, M; Dove, M; Coleman, RA; Pörtner, H-O; Scanes, E; Virtue, P; Gibbs, M; Ross, PM

Ocean acidification but not warming alters sex determination in the Sydney rock oyster, Saccostrea glomerata.

Parker, LM O'Connor, WA Byrne, M Dove, M Coleman, RA Pörtner, H-O Scanes, E

Virtue, P Gibbs, M Ross, PM

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Publisher:: ROYAL SOC
Publication Type:: Journal Article
Citation:: Proc Biol Sci, 2018, 285, (1872)
Issue Date:: 2018-02-14

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Field	Value	Language
dc.contributor.author	Parker, LM
dc.contributor.author	O'Connor, WA
dc.contributor.author	Byrne, M
dc.contributor.author	Dove, M
dc.contributor.author	Coleman, RA
dc.contributor.author	Pörtner, H-O
dc.contributor.author	Scanes, E https://orcid.org/0000-0001-7520-3804
dc.contributor.author	Virtue, P
dc.contributor.author	Gibbs, M
dc.contributor.author	Ross, PM
dc.date.accessioned	2022-05-03T10:39:18Z
dc.date.available	2018-01-26
dc.date.available	2022-05-03T10:39:18Z
dc.date.issued	2018-02-14
dc.identifier.citation	Proc Biol Sci, 2018, 285, (1872)
dc.identifier.issn	0962-8452
dc.identifier.issn	1471-2954
dc.identifier.uri	http://hdl.handle.net/10453/156964
dc.description.abstract	Whether sex determination of marine organisms can be altered by ocean acidification and warming during this century remains a significant, unanswered question. Here, we show that exposure of the protandric hermaphrodite oyster, Saccostrea glomerata to ocean acidification, but not warming, alters sex determination resulting in changes in sex ratios. After just one reproductive cycle there were 16% more females than males. The rate of gametogenesis, gonad area, fecundity, shell length, extracellular pH and survival decreased in response to ocean acidification. Warming as a sole stressor slightly increased the rate of gametogenesis, gonad area and fecundity, but this increase was masked by the impact of ocean acidification at a level predicted for this century. Alterations to sex determination, sex ratios and reproductive capacity will have flow on effects to reduce larval supply and population size of oysters and potentially other marine organisms.
dc.format	Print
dc.language	eng
dc.publisher	ROYAL SOC
dc.relation.ispartof	Proc Biol Sci
dc.relation.isbasedon	10.1098/rspb.2017.2869
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	06 Biological Sciences, 07 Agricultural and Veterinary Sciences, 11 Medical and Health Sciences
dc.subject.mesh	Animals
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Climate Change
dc.subject.mesh	Hot Temperature
dc.subject.mesh	Ostreidae
dc.subject.mesh	Seawater
dc.subject.mesh	Sex Determination Processes
dc.subject.mesh	Sex Ratio
dc.subject.mesh	Animals
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Seawater
dc.subject.mesh	Sex Ratio
dc.subject.mesh	Ostreidae
dc.subject.mesh	Hot Temperature
dc.subject.mesh	Climate Change
dc.subject.mesh	Sex Determination Processes
dc.title	Ocean acidification but not warming alters sex determination in the Sydney rock oyster, Saccostrea glomerata.
dc.type	Journal Article
utslib.citation.volume	285
utslib.location.activity	England
utslib.for	06 Biological Sciences
utslib.for	07 Agricultural and Veterinary Sciences
utslib.for	11 Medical and Health Sciences
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access	*
dc.date.updated	2022-05-03T10:39:17Z
pubs.issue	1872
pubs.publication-status	Published
pubs.volume	285
utslib.citation.issue	1872

Abstract:

Whether sex determination of marine organisms can be altered by ocean acidification and warming during this century remains a significant, unanswered question. Here, we show that exposure of the protandric hermaphrodite oyster, Saccostrea glomerata to ocean acidification, but not warming, alters sex determination resulting in changes in sex ratios. After just one reproductive cycle there were 16% more females than males. The rate of gametogenesis, gonad area, fecundity, shell length, extracellular pH and survival decreased in response to ocean acidification. Warming as a sole stressor slightly increased the rate of gametogenesis, gonad area and fecundity, but this increase was masked by the impact of ocean acidification at a level predicted for this century. Alterations to sex determination, sex ratios and reproductive capacity will have flow on effects to reduce larval supply and population size of oysters and potentially other marine organisms.

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http://hdl.handle.net/10453/156964