Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community
Abstract Ocean acidification and warming are likely to affect the structure and functioning of marine benthic communities. This study experimentally examined the effects of ocean acidification and warming on trophic interactions within a maerl bed community by using stable carbon and nitrogen isotop...
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Online Access: | http://dx.doi.org/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maec.12612 |
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crwiley:10.1111/maec.12612 2024-09-15T18:27:49+00:00 Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community Legrand, Erwann Martin, Sophie Leroux, Cédric Riera, Pascal 2020 http://dx.doi.org/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maec.12612 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Ecology volume 41, issue 5 ISSN 0173-9565 1439-0485 journal-article 2020 crwiley https://doi.org/10.1111/maec.12612 2024-06-25T04:18:04Z Abstract Ocean acidification and warming are likely to affect the structure and functioning of marine benthic communities. This study experimentally examined the effects of ocean acidification and warming on trophic interactions within a maerl bed community by using stable carbon and nitrogen isotope analysis. Two three‐month experiments were conducted in winter and summer seasons with four different combinations of pCO 2 (ambient and elevated pCO 2 ) and temperature (ambient and +3°C). Experimental assemblages were created in tanks held in the laboratory and were composed of calcareous ( Lithothamnion corallioides ) and fleshy algae ( Rhodymenia ardissonei , Solieria chordalis, and Ulva sp.), gastropods ( Gibbula magus and Jujubinus exasperatus ), and sea urchins ( Psammechinus miliaris ). Our results showed higher seaweed availability for grazers in summer than winter. Therefore, grazers were able to adapt their diet seasonally. Increased pCO 2 and temperature did not modify the trophic structure in winter, while shifts in the contribution of seaweed were found in summer. Combined acidification and warming increased the contribution of biofilm in gastropods diet in summer conditions. Psammechinus miliaris mostly consumed L. corallioides under ambient conditions, while the alga S. chordalis became the dominant food source under high pCO 2 in summer. Predicted changes in pCO 2 and temperature had complex effects on assemblage trophic structure. Direct effects of acidification and warming on seaweed metabolism may modify their abundance and biomass, affecting their availability for grazers. Climate change may also modify seaweeds' nutritive value and their palatability for grazers. The grazers we investigated were able to change their diet in response to changes in algal assemblages, an advantage given that warming and acidification alter the composition of algal communities. Article in Journal/Newspaper Ocean acidification Wiley Online Library Marine Ecology 41 5 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Ocean acidification and warming are likely to affect the structure and functioning of marine benthic communities. This study experimentally examined the effects of ocean acidification and warming on trophic interactions within a maerl bed community by using stable carbon and nitrogen isotope analysis. Two three‐month experiments were conducted in winter and summer seasons with four different combinations of pCO 2 (ambient and elevated pCO 2 ) and temperature (ambient and +3°C). Experimental assemblages were created in tanks held in the laboratory and were composed of calcareous ( Lithothamnion corallioides ) and fleshy algae ( Rhodymenia ardissonei , Solieria chordalis, and Ulva sp.), gastropods ( Gibbula magus and Jujubinus exasperatus ), and sea urchins ( Psammechinus miliaris ). Our results showed higher seaweed availability for grazers in summer than winter. Therefore, grazers were able to adapt their diet seasonally. Increased pCO 2 and temperature did not modify the trophic structure in winter, while shifts in the contribution of seaweed were found in summer. Combined acidification and warming increased the contribution of biofilm in gastropods diet in summer conditions. Psammechinus miliaris mostly consumed L. corallioides under ambient conditions, while the alga S. chordalis became the dominant food source under high pCO 2 in summer. Predicted changes in pCO 2 and temperature had complex effects on assemblage trophic structure. Direct effects of acidification and warming on seaweed metabolism may modify their abundance and biomass, affecting their availability for grazers. Climate change may also modify seaweeds' nutritive value and their palatability for grazers. The grazers we investigated were able to change their diet in response to changes in algal assemblages, an advantage given that warming and acidification alter the composition of algal communities. |
format |
Article in Journal/Newspaper |
author |
Legrand, Erwann Martin, Sophie Leroux, Cédric Riera, Pascal |
spellingShingle |
Legrand, Erwann Martin, Sophie Leroux, Cédric Riera, Pascal Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
author_facet |
Legrand, Erwann Martin, Sophie Leroux, Cédric Riera, Pascal |
author_sort |
Legrand, Erwann |
title |
Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
title_short |
Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
title_full |
Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
title_fullStr |
Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
title_full_unstemmed |
Using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
title_sort |
using stable isotope analysis to determine the effects of ocean acidification and warming on trophic interactions in a maerl bed community |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maec.12612 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maec.12612 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Marine Ecology volume 41, issue 5 ISSN 0173-9565 1439-0485 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/maec.12612 |
container_title |
Marine Ecology |
container_volume |
41 |
container_issue |
5 |
_version_ |
1810469090302623744 |