A marine heatwave drives significant shifts in pelagic microbiology.

Brown, MV; Ostrowski, M; Messer, LF; Bramucci, A; van de Kamp, J; Smith, MC; Bissett, A; Seymour, J; Hobday, AJ; Bodrossy, L

A marine heatwave drives significant shifts in pelagic microbiology.

Brown, MV Ostrowski, M

Messer, LF Bramucci, A van de Kamp, J Smith, MC Bissett, A Seymour, J

Hobday, AJ Bodrossy, L

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Publisher:: NATURE PORTFOLIO
Publication Type:: Journal Article
Citation:: Commun Biol, 2024, 7, (1), pp. 125
Issue Date:: 2024-01-24

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Field	Value	Language
dc.contributor.author	Brown, MV
dc.contributor.author	Ostrowski, M https://orcid.org/0000-0002-4357-3023
dc.contributor.author	Messer, LF
dc.contributor.author	Bramucci, A
dc.contributor.author	van de Kamp, J
dc.contributor.author	Smith, MC
dc.contributor.author	Bissett, A
dc.contributor.author	Seymour, J https://orcid.org/0000-0002-3745-6541
dc.contributor.author	Hobday, AJ
dc.contributor.author	Bodrossy, L
dc.date.accessioned	2024-08-01T03:29:39Z
dc.date.available	2023-12-12
dc.date.available	2024-08-01T03:29:39Z
dc.date.issued	2024-01-24
dc.identifier.citation	Commun Biol, 2024, 7, (1), pp. 125
dc.identifier.issn	2399-3642
dc.identifier.issn	2399-3642
dc.identifier.uri	http://hdl.handle.net/10453/179900
dc.description.abstract	Marine heatwaves (MHWs) cause disruption to marine ecosystems, deleteriously impacting macroflora and fauna. However, effects on microorganisms are relatively unknown despite ocean temperature being a major determinant of assemblage structure. Using data from thousands of Southern Hemisphere samples, we reveal that during an "unprecedented" 2015/16 Tasman Sea MHW, temperatures approached or surpassed the upper thermal boundary of many endemic taxa. Temperate microbial assemblages underwent a profound transition to niche states aligned with sites over 1000 km equatorward, adapting to higher temperatures and lower nutrient conditions bought on by the MHW. MHW conditions also modulate seasonal patterns of microbial diversity and support novel assemblage compositions. The most significant affects of MHWs on microbial assemblages occurred during warmer months, when temperatures exceeded the upper climatological bounds. Trends in microbial response across several MHWs in different locations suggest these are emergent properties of temperate ocean warming, which may facilitate monitoring, prediction and adaptation efforts.
dc.format	Electronic
dc.language	eng
dc.publisher	NATURE PORTFOLIO
dc.relation	http://purl.org/au-research/grants/arc/DP120102764
dc.relation	http://purl.org/au-research/grants/arc/DP170101925
dc.relation	http://purl.org/au-research/grants/arc/DP150102326
dc.relation.ispartof	Commun Biol
dc.relation.isbasedon	10.1038/s42003-023-05702-4
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	31 Biological sciences
dc.subject.classification	32 Biomedical and clinical sciences
dc.subject.mesh	Ecosystem
dc.subject.mesh	Infrared Rays
dc.subject.mesh	Nutrients
dc.subject.mesh	Temperature
dc.subject.mesh	Ecosystem
dc.subject.mesh	Temperature
dc.subject.mesh	Infrared Rays
dc.subject.mesh	Nutrients
dc.subject.mesh	Ecosystem
dc.subject.mesh	Infrared Rays
dc.subject.mesh	Nutrients
dc.subject.mesh	Temperature
dc.title	A marine heatwave drives significant shifts in pelagic microbiology.
dc.type	Journal Article
utslib.citation.volume	7
utslib.location.activity	England
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Strength - C3 - Climate Change Cluster
pubs.organisational-group	University of Technology Sydney/All Manual Groups
pubs.organisational-group	University of Technology Sydney/All Manual Groups/Climate Change Cluster Research Strength (C3)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2024-08-01T03:29:34Z
pubs.issue	1
pubs.publication-status	Published online
pubs.volume	7
utslib.citation.issue	1

Abstract:

Marine heatwaves (MHWs) cause disruption to marine ecosystems, deleteriously impacting macroflora and fauna. However, effects on microorganisms are relatively unknown despite ocean temperature being a major determinant of assemblage structure. Using data from thousands of Southern Hemisphere samples, we reveal that during an "unprecedented" 2015/16 Tasman Sea MHW, temperatures approached or surpassed the upper thermal boundary of many endemic taxa. Temperate microbial assemblages underwent a profound transition to niche states aligned with sites over 1000 km equatorward, adapting to higher temperatures and lower nutrient conditions bought on by the MHW. MHW conditions also modulate seasonal patterns of microbial diversity and support novel assemblage compositions. The most significant affects of MHWs on microbial assemblages occurred during warmer months, when temperatures exceeded the upper climatological bounds. Trends in microbial response across several MHWs in different locations suggest these are emergent properties of temperate ocean warming, which may facilitate monitoring, prediction and adaptation efforts.

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http://hdl.handle.net/10453/179900