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Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts
Ongoing climate change has caused rapidly increasing temperatures and an unprecedented decline in seawater pH, known as ocean acidification. Increasing temperatures are redistributing species toward higher and cooler latitudes that are most affected by ocean acidification. While the persistence of i...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10129327/ https://www.ncbi.nlm.nih.gov/pubmed/37039622 http://dx.doi.org/10.7554/eLife.81080 |
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author | Thyrring, Jakob Macleod, Colin D Marshall, Katie E Kennedy, Jessica Tremblay, Réjean Harley, Christopher DG |
author_facet | Thyrring, Jakob Macleod, Colin D Marshall, Katie E Kennedy, Jessica Tremblay, Réjean Harley, Christopher DG |
author_sort | Thyrring, Jakob |
collection | PubMed |
description | Ongoing climate change has caused rapidly increasing temperatures and an unprecedented decline in seawater pH, known as ocean acidification. Increasing temperatures are redistributing species toward higher and cooler latitudes that are most affected by ocean acidification. While the persistence of intertidal species in cold environments is related to their capacity to resist sub-zero air temperatures, studies have never considered the interacting impacts of ocean acidification and freeze stress on species survival and distribution. Here, a full-factorial experiment was used to study whether ocean acidification increases mortality in subtidal Mytilus trossulus and subtidal M. galloprovincialis, and intertidal M. trossulus following sub-zero air temperature exposure. We examined physiological processes behind variation in freeze tolerance using (1)H NMR metabolomics, analyses of fatty acids, and amino acid composition. We show that low pH conditions (pH = 7.5) significantly decrease freeze tolerance in both intertidal and subtidal populations of Mytilus spp. Under current day pH conditions (pH = 7.9), intertidal M. trossulus was more freeze tolerant than subtidal M. trossulus and subtidal M. galloprovincialis. Conversely, under low pH conditions, subtidal M. trossulus was more freeze tolerant than the other mussel categories. Differences in the concentration of various metabolites (cryoprotectants) or in the composition of amino acids and fatty acids could not explain the decrease in survival. These results suggest that ocean acidification can offset the poleward range expansions facilitated by warming and that reduced freeze tolerance could result in a range contraction if temperatures become lethal at the equatorward edge. |
format | Online Article Text |
id | pubmed-10129327 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-101293272023-04-26 Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts Thyrring, Jakob Macleod, Colin D Marshall, Katie E Kennedy, Jessica Tremblay, Réjean Harley, Christopher DG eLife Ecology Ongoing climate change has caused rapidly increasing temperatures and an unprecedented decline in seawater pH, known as ocean acidification. Increasing temperatures are redistributing species toward higher and cooler latitudes that are most affected by ocean acidification. While the persistence of intertidal species in cold environments is related to their capacity to resist sub-zero air temperatures, studies have never considered the interacting impacts of ocean acidification and freeze stress on species survival and distribution. Here, a full-factorial experiment was used to study whether ocean acidification increases mortality in subtidal Mytilus trossulus and subtidal M. galloprovincialis, and intertidal M. trossulus following sub-zero air temperature exposure. We examined physiological processes behind variation in freeze tolerance using (1)H NMR metabolomics, analyses of fatty acids, and amino acid composition. We show that low pH conditions (pH = 7.5) significantly decrease freeze tolerance in both intertidal and subtidal populations of Mytilus spp. Under current day pH conditions (pH = 7.9), intertidal M. trossulus was more freeze tolerant than subtidal M. trossulus and subtidal M. galloprovincialis. Conversely, under low pH conditions, subtidal M. trossulus was more freeze tolerant than the other mussel categories. Differences in the concentration of various metabolites (cryoprotectants) or in the composition of amino acids and fatty acids could not explain the decrease in survival. These results suggest that ocean acidification can offset the poleward range expansions facilitated by warming and that reduced freeze tolerance could result in a range contraction if temperatures become lethal at the equatorward edge. eLife Sciences Publications, Ltd 2023-04-11 /pmc/articles/PMC10129327/ /pubmed/37039622 http://dx.doi.org/10.7554/eLife.81080 Text en © 2023, Thyrring et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Ecology Thyrring, Jakob Macleod, Colin D Marshall, Katie E Kennedy, Jessica Tremblay, Réjean Harley, Christopher DG Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title | Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title_full | Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title_fullStr | Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title_full_unstemmed | Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title_short | Ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
title_sort | ocean acidification increases susceptibility to sub-zero air temperatures in ecosystem engineers and limits poleward range shifts |
topic | Ecology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10129327/ https://www.ncbi.nlm.nih.gov/pubmed/37039622 http://dx.doi.org/10.7554/eLife.81080 |
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