Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification
Kelp forests are threatened by ocean warming, yet effects of co-occurring drivers such as CO2 are rarely considered when predicting their performance in the future. In Australia, the kelp Ecklonia radiata forms extensive forests across seawater temperatures of approximately 7-26°C. Cool-edge populat...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2024
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Online Access: | https://discovery.dundee.ac.uk/en/publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b https://doi.org/10.1098/rspb.2023.2253 https://discovery.dundee.ac.uk/ws/files/117599223/britton-et-al-2024-cool-edge-populations-of-the-kelp-ecklonia-radiata-under-global-ocean-change-scenarios-strong.pdf http://www.scopus.com/inward/record.url?scp=85182614241&partnerID=8YFLogxK |
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ftunivdundeepure:oai:discovery.dundee.ac.uk:publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b 2024-09-09T20:01:24+00:00 Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification Britton, Damon Layton, Cayne Mundy, Craig N. Brewer, Elizabeth A. Gaitán-Espitia, Juan Diego Beardall, John Raven, John A. Hurd, Catriona L. 2024-01-31 application/pdf https://discovery.dundee.ac.uk/en/publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b https://doi.org/10.1098/rspb.2023.2253 https://discovery.dundee.ac.uk/ws/files/117599223/britton-et-al-2024-cool-edge-populations-of-the-kelp-ecklonia-radiata-under-global-ocean-change-scenarios-strong.pdf http://www.scopus.com/inward/record.url?scp=85182614241&partnerID=8YFLogxK eng eng https://discovery.dundee.ac.uk/en/publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b info:eu-repo/semantics/openAccess Britton , D , Layton , C , Mundy , C N , Brewer , E A , Gaitán-Espitia , J D , Beardall , J , Raven , J A & Hurd , C L 2024 , ' Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios : strong sensitivity to ocean warming but little effect of ocean acidification ' , Proceedings of the Royal Society B: Biological Sciences , vol. 291 , no. 2015 , 20232253 . https://doi.org/10.1098/rspb.2023.2253 multiple drivers ocean acidification ocean warming phenotypic plasticity physiology thermal performance curves /dk/atira/pure/subjectarea/asjc/2400/2400 name=General Immunology and Microbiology /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/2300/2300 name=General Environmental Science /dk/atira/pure/subjectarea/asjc/1100/1100 name=General Agricultural and Biological Sciences article 2024 ftunivdundeepure https://doi.org/10.1098/rspb.2023.2253 2024-06-18T15:06:27Z Kelp forests are threatened by ocean warming, yet effects of co-occurring drivers such as CO2 are rarely considered when predicting their performance in the future. In Australia, the kelp Ecklonia radiata forms extensive forests across seawater temperatures of approximately 7-26°C. Cool-edge populations are typically considered more thermally tolerant than their warm-edge counterparts but this ignores the possibility of local adaptation. Moreover, it is unknown whether elevated CO2 can mitigate negative effects of warming. To identify whether elevated CO2 could improve thermal performance of a cool-edge population of E. radiata, we constructed thermal performance curves for growth and photosynthesis, under both current and elevated CO2 (approx. 400 and 1000 µatm). We then modelled annual performance under warming scenarios to highlight thermal susceptibility. Elevated CO2 had minimal effect on growth but increased photosynthesis around the thermal optimum. Thermal optima were approximately 16°C for growth and approximately 18°C for photosynthesis, and modelled performance indicated cool-edge populations may be vulnerable in the future. Our findings demonstrate that elevated CO2 is unlikely to offset negative effects of ocean warming on the kelp E. radiata and highlight the potential susceptibility of cool-edge populations to ocean warming. Article in Journal/Newspaper Ocean acidification Discovery - University of Dundee Online Publications Proceedings of the Royal Society B: Biological Sciences 291 2015 |
institution |
Open Polar |
collection |
Discovery - University of Dundee Online Publications |
op_collection_id |
ftunivdundeepure |
language |
English |
topic |
multiple drivers ocean acidification ocean warming phenotypic plasticity physiology thermal performance curves /dk/atira/pure/subjectarea/asjc/2400/2400 name=General Immunology and Microbiology /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/2300/2300 name=General Environmental Science /dk/atira/pure/subjectarea/asjc/1100/1100 name=General Agricultural and Biological Sciences |
spellingShingle |
multiple drivers ocean acidification ocean warming phenotypic plasticity physiology thermal performance curves /dk/atira/pure/subjectarea/asjc/2400/2400 name=General Immunology and Microbiology /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/2300/2300 name=General Environmental Science /dk/atira/pure/subjectarea/asjc/1100/1100 name=General Agricultural and Biological Sciences Britton, Damon Layton, Cayne Mundy, Craig N. Brewer, Elizabeth A. Gaitán-Espitia, Juan Diego Beardall, John Raven, John A. Hurd, Catriona L. Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
topic_facet |
multiple drivers ocean acidification ocean warming phenotypic plasticity physiology thermal performance curves /dk/atira/pure/subjectarea/asjc/2400/2400 name=General Immunology and Microbiology /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/2300/2300 name=General Environmental Science /dk/atira/pure/subjectarea/asjc/1100/1100 name=General Agricultural and Biological Sciences |
description |
Kelp forests are threatened by ocean warming, yet effects of co-occurring drivers such as CO2 are rarely considered when predicting their performance in the future. In Australia, the kelp Ecklonia radiata forms extensive forests across seawater temperatures of approximately 7-26°C. Cool-edge populations are typically considered more thermally tolerant than their warm-edge counterparts but this ignores the possibility of local adaptation. Moreover, it is unknown whether elevated CO2 can mitigate negative effects of warming. To identify whether elevated CO2 could improve thermal performance of a cool-edge population of E. radiata, we constructed thermal performance curves for growth and photosynthesis, under both current and elevated CO2 (approx. 400 and 1000 µatm). We then modelled annual performance under warming scenarios to highlight thermal susceptibility. Elevated CO2 had minimal effect on growth but increased photosynthesis around the thermal optimum. Thermal optima were approximately 16°C for growth and approximately 18°C for photosynthesis, and modelled performance indicated cool-edge populations may be vulnerable in the future. Our findings demonstrate that elevated CO2 is unlikely to offset negative effects of ocean warming on the kelp E. radiata and highlight the potential susceptibility of cool-edge populations to ocean warming. |
format |
Article in Journal/Newspaper |
author |
Britton, Damon Layton, Cayne Mundy, Craig N. Brewer, Elizabeth A. Gaitán-Espitia, Juan Diego Beardall, John Raven, John A. Hurd, Catriona L. |
author_facet |
Britton, Damon Layton, Cayne Mundy, Craig N. Brewer, Elizabeth A. Gaitán-Espitia, Juan Diego Beardall, John Raven, John A. Hurd, Catriona L. |
author_sort |
Britton, Damon |
title |
Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
title_short |
Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
title_full |
Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
title_fullStr |
Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
title_full_unstemmed |
Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
title_sort |
cool-edge populations of the kelp ecklonia radiata under global ocean change scenarios:strong sensitivity to ocean warming but little effect of ocean acidification |
publishDate |
2024 |
url |
https://discovery.dundee.ac.uk/en/publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b https://doi.org/10.1098/rspb.2023.2253 https://discovery.dundee.ac.uk/ws/files/117599223/britton-et-al-2024-cool-edge-populations-of-the-kelp-ecklonia-radiata-under-global-ocean-change-scenarios-strong.pdf http://www.scopus.com/inward/record.url?scp=85182614241&partnerID=8YFLogxK |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Britton , D , Layton , C , Mundy , C N , Brewer , E A , Gaitán-Espitia , J D , Beardall , J , Raven , J A & Hurd , C L 2024 , ' Cool-edge populations of the kelp Ecklonia radiata under global ocean change scenarios : strong sensitivity to ocean warming but little effect of ocean acidification ' , Proceedings of the Royal Society B: Biological Sciences , vol. 291 , no. 2015 , 20232253 . https://doi.org/10.1098/rspb.2023.2253 |
op_relation |
https://discovery.dundee.ac.uk/en/publications/a57ab68a-dc98-4856-8cb1-9b88f1c5094b |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rspb.2023.2253 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
291 |
container_issue |
2015 |
_version_ |
1809933214042554368 |