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Oxygen supersaturation protects coastal marine fauna from ocean warming

Ocean warming affects the life history and fitness of marine organisms by, among others, increasing animal metabolism and reducing oxygen availability. In coastal habitats, animals live in close association with photosynthetic organisms whose oxygen supply supports metabolic demands and may compensa...

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Autores principales: Giomi, Folco, Barausse, Alberto, Duarte, Carlos M., Booth, Jenny, Agusti, Susana, Saderne, Vincent, Anton, Andrea, Daffonchio, Daniele, Fusi, Marco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726443/
https://www.ncbi.nlm.nih.gov/pubmed/31517051
http://dx.doi.org/10.1126/sciadv.aax1814
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author Giomi, Folco
Barausse, Alberto
Duarte, Carlos M.
Booth, Jenny
Agusti, Susana
Saderne, Vincent
Anton, Andrea
Daffonchio, Daniele
Fusi, Marco
author_facet Giomi, Folco
Barausse, Alberto
Duarte, Carlos M.
Booth, Jenny
Agusti, Susana
Saderne, Vincent
Anton, Andrea
Daffonchio, Daniele
Fusi, Marco
author_sort Giomi, Folco
collection PubMed
description Ocean warming affects the life history and fitness of marine organisms by, among others, increasing animal metabolism and reducing oxygen availability. In coastal habitats, animals live in close association with photosynthetic organisms whose oxygen supply supports metabolic demands and may compensate for acute warming. Using a unique high-frequency monitoring dataset, we show that oxygen supersaturation resulting from photosynthesis closely parallels sea temperature rise during diel cycles in Red Sea coastal habitats. We experimentally demonstrate that oxygen supersaturation extends the survival to more extreme temperatures of six species from four phyla. We clarify the mechanistic basis of the extended thermal tolerance by showing that hyperoxia fulfills the increased metabolic demand at high temperatures. By modeling 1 year of water temperatures and oxygen concentrations, we predict that oxygen supersaturation from photosynthetic activity invariably fuels peak animal metabolic demand, representing an underestimated factor of resistance and resilience to ocean warming in ectotherms.
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spelling pubmed-67264432019-09-12 Oxygen supersaturation protects coastal marine fauna from ocean warming Giomi, Folco Barausse, Alberto Duarte, Carlos M. Booth, Jenny Agusti, Susana Saderne, Vincent Anton, Andrea Daffonchio, Daniele Fusi, Marco Sci Adv Research Articles Ocean warming affects the life history and fitness of marine organisms by, among others, increasing animal metabolism and reducing oxygen availability. In coastal habitats, animals live in close association with photosynthetic organisms whose oxygen supply supports metabolic demands and may compensate for acute warming. Using a unique high-frequency monitoring dataset, we show that oxygen supersaturation resulting from photosynthesis closely parallels sea temperature rise during diel cycles in Red Sea coastal habitats. We experimentally demonstrate that oxygen supersaturation extends the survival to more extreme temperatures of six species from four phyla. We clarify the mechanistic basis of the extended thermal tolerance by showing that hyperoxia fulfills the increased metabolic demand at high temperatures. By modeling 1 year of water temperatures and oxygen concentrations, we predict that oxygen supersaturation from photosynthetic activity invariably fuels peak animal metabolic demand, representing an underestimated factor of resistance and resilience to ocean warming in ectotherms. American Association for the Advancement of Science 2019-09-04 /pmc/articles/PMC6726443/ /pubmed/31517051 http://dx.doi.org/10.1126/sciadv.aax1814 Text en Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Giomi, Folco
Barausse, Alberto
Duarte, Carlos M.
Booth, Jenny
Agusti, Susana
Saderne, Vincent
Anton, Andrea
Daffonchio, Daniele
Fusi, Marco
Oxygen supersaturation protects coastal marine fauna from ocean warming
title Oxygen supersaturation protects coastal marine fauna from ocean warming
title_full Oxygen supersaturation protects coastal marine fauna from ocean warming
title_fullStr Oxygen supersaturation protects coastal marine fauna from ocean warming
title_full_unstemmed Oxygen supersaturation protects coastal marine fauna from ocean warming
title_short Oxygen supersaturation protects coastal marine fauna from ocean warming
title_sort oxygen supersaturation protects coastal marine fauna from ocean warming
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726443/
https://www.ncbi.nlm.nih.gov/pubmed/31517051
http://dx.doi.org/10.1126/sciadv.aax1814
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