Can prior exposure to stress enhance resilience to ocean warming in two oyster species?

Pereira, RRC; Scanes, E; Gibbs, M; Byrne, M; Ross, PM

Can prior exposure to stress enhance resilience to ocean warming in two oyster species?

Pereira, RRC Scanes, E

Gibbs, M Byrne, M Ross, PM

Permalink

Publisher:: PUBLIC LIBRARY SCIENCE
Publication Type:: Journal Article
Citation:: PloS one, 2020, 15, (4), pp. e0228527
Issue Date:: 2020-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published versionAdobe PDF (1.65 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Pereira, RRC
dc.contributor.author	Scanes, E https://orcid.org/0000-0001-7520-3804
dc.contributor.author	Gibbs, M
dc.contributor.author	Byrne, M
dc.contributor.author	Ross, PM
dc.date.accessioned	2021-03-15T19:52:10Z
dc.date.available	2020-03-13
dc.date.available	2021-03-15T19:52:10Z
dc.date.issued	2020-01
dc.identifier.citation	PloS one, 2020, 15, (4), pp. e0228527
dc.identifier.issn	1932-6203
dc.identifier.issn	1932-6203
dc.identifier.uri	http://hdl.handle.net/10453/147176
dc.description.abstract	Securing economically and ecologically significant molluscs, as our oceans warm due to climate change, is a global priority. South eastern Australia receives warm water in a strengthening East Australia Current and so resident species are vulnerable to elevated temperature and marine heat waves. This study tested whether prior exposure to elevated temperature can enhance resilience of oysters to ocean warming. Two Australian species, the flat oyster, Ostrea angasi, and the Sydney rock oyster, Saccostrea glomerata, were obtained as adults and "heat shocked" by exposure to a dose of warm water in the laboratory. Oysters were then transferred to elevated seawater temperature conditions where the thermal outfall from power generation was used as a proxy to investigate the impacts of ocean warming. Shell growth, condition index, lipid content and survival of flat oysters and condition of Sydney rock oysters were all significantly reduced by elevated seawater temperature in the field. Flat oysters grew faster than Sydney rock oysters at ambient temperature, but their growth and survival was more sensitive to elevated temperature. "Stress inoculation" by heat shock did little to ameliorate the negative effects of increased temperature, although the survival of heat-shocked flat oysters was greater than non-heat shocked oysters. Further investigations are required to determine if early exposure to heat stress can enhance resilience of oysters to ocean warming.
dc.format	Electronic-eCollection
dc.language	eng
dc.publisher	PUBLIC LIBRARY SCIENCE
dc.relation.ispartof	PloS one
dc.relation.isbasedon	10.1371/journal.pone.0228527
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	General Science & Technology
dc.subject.mesh	Animals
dc.subject.mesh	Lipids
dc.subject.mesh	Basal Metabolism
dc.subject.mesh	Survival Analysis
dc.subject.mesh	Temperature
dc.subject.mesh	Adaptation, Physiological
dc.subject.mesh	Australia
dc.subject.mesh	Oceans and Seas
dc.subject.mesh	Ostreidae
dc.subject.mesh	Stress, Physiological
dc.subject.mesh	Climate Change
dc.subject.mesh	Animal Shells
dc.subject.mesh	Adaptation, Physiological
dc.subject.mesh	Animal Shells
dc.subject.mesh	Animals
dc.subject.mesh	Australia
dc.subject.mesh	Basal Metabolism
dc.subject.mesh	Climate Change
dc.subject.mesh	Lipids
dc.subject.mesh	Oceans and Seas
dc.subject.mesh	Ostreidae
dc.subject.mesh	Stress, Physiological
dc.subject.mesh	Survival Analysis
dc.subject.mesh	Temperature
dc.title	Can prior exposure to stress enhance resilience to ocean warming in two oyster species?
dc.type	Journal Article
utslib.citation.volume	15
utslib.location.activity	United States
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access	*
dc.date.updated	2021-03-15T19:51:54Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	15
utslib.citation.issue	4

Abstract:

Securing economically and ecologically significant molluscs, as our oceans warm due to climate change, is a global priority. South eastern Australia receives warm water in a strengthening East Australia Current and so resident species are vulnerable to elevated temperature and marine heat waves. This study tested whether prior exposure to elevated temperature can enhance resilience of oysters to ocean warming. Two Australian species, the flat oyster, Ostrea angasi, and the Sydney rock oyster, Saccostrea glomerata, were obtained as adults and "heat shocked" by exposure to a dose of warm water in the laboratory. Oysters were then transferred to elevated seawater temperature conditions where the thermal outfall from power generation was used as a proxy to investigate the impacts of ocean warming. Shell growth, condition index, lipid content and survival of flat oysters and condition of Sydney rock oysters were all significantly reduced by elevated seawater temperature in the field. Flat oysters grew faster than Sydney rock oysters at ambient temperature, but their growth and survival was more sensitive to elevated temperature. "Stress inoculation" by heat shock did little to ameliorate the negative effects of increased temperature, although the survival of heat-shocked flat oysters was greater than non-heat shocked oysters. Further investigations are required to determine if early exposure to heat stress can enhance resilience of oysters to ocean warming.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/147176