Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion
Physiological sensitivity of cold-water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead coral framework. In a 13-month laboratory experiment, we examined the interacti...
Published in: | Limnology and Oceanography |
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Language: | English |
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Wiley
2022
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Online Access: | https://oceanrep.geomar.de/id/eprint/57024/ https://oceanrep.geomar.de/id/eprint/57024/13/Limnology%20Oceanography_2022_B%C3%BCscher_Cold%E2%80%90water%20coral%20ecosystems%20under%20future%20ocean%20change%20Live%20coral%20performance.pdf https://oceanrep.geomar.de/id/eprint/57024/2/lno12217_sup_0001_supinfo.pdf https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.12217 https://doi.org/10.1002/lno.12217 |
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ftoceanrep:oai:oceanrep.geomar.de:57024 2024-02-11T10:05:42+01:00 Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion Büscher, Janina V. Form, Armin U. Wisshak, Max Kiko, Rainer Riebesell, Ulf 2022-11 text https://oceanrep.geomar.de/id/eprint/57024/ https://oceanrep.geomar.de/id/eprint/57024/13/Limnology%20Oceanography_2022_B%C3%BCscher_Cold%E2%80%90water%20coral%20ecosystems%20under%20future%20ocean%20change%20Live%20coral%20performance.pdf https://oceanrep.geomar.de/id/eprint/57024/2/lno12217_sup_0001_supinfo.pdf https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.12217 https://doi.org/10.1002/lno.12217 en eng Wiley ASLO (Association for the Sciences of Limnology and Oceanography) https://oceanrep.geomar.de/id/eprint/57024/13/Limnology%20Oceanography_2022_B%C3%BCscher_Cold%E2%80%90water%20coral%20ecosystems%20under%20future%20ocean%20change%20Live%20coral%20performance.pdf https://oceanrep.geomar.de/id/eprint/57024/2/lno12217_sup_0001_supinfo.pdf Büscher, J. V., Form, A. U., Wisshak, M., Kiko, R. and Riebesell, U. (2022) Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion. Open Access Limnology and Oceanography, 67 (11). pp. 2497-2515. DOI 10.1002/lno.12217 <https://doi.org/10.1002/lno.12217>. doi:10.1002/lno.12217 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2022 ftoceanrep https://doi.org/10.1002/lno.12217 2024-01-15T00:25:56Z Physiological sensitivity of cold-water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead coral framework. In a 13-month laboratory experiment, we examined the interactive effects of gradually increasing temperature and pCO2 levels on survival, growth, and respiration of two prominent color morphotypes (colormorphs) of the framework-forming cold-water coral Lophelia pertusa, as well as bioerosion and dissolution of dead framework. Calcification rates tended to increase with warming, showing temperature optima at ~ 14°C (white colormorph) and 10–12°C (orange colormorph) and decreased with increasing pCO2. Net dissolution occurred at aragonite undersaturation (ΩAr < 1) at ~ 1000 μatm pCO2. Under combined warming and acidification, the negative effects of acidification on growth were initially mitigated, but at ~ 1600 μatm dissolution prevailed. Respiration rates increased with warming, more strongly in orange corals, while acidification slightly suppressed respiration. Calcification and respiration rates as well as polyp mortality were consistently higher in orange corals. Mortality increased considerably at 14–15°C in both colormorphs. Bioerosion/dissolution of dead framework was not affected by warming alone but was significantly enhanced by acidification. While live corals may cope with intermediate levels of elevated pCO2 and temperature, long-term impacts beyond levels projected for the end of this century will likely lead to skeletal dissolution and increased mortality. Our findings further suggest that acidification causes accelerated degradation of dead framework even at aragonite saturated conditions, which will eventually compromise the structural integrity of cold-water coral reefs. Article in Journal/Newspaper Lophelia pertusa Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Limnology and Oceanography 67 11 2497 2515 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Physiological sensitivity of cold-water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead coral framework. In a 13-month laboratory experiment, we examined the interactive effects of gradually increasing temperature and pCO2 levels on survival, growth, and respiration of two prominent color morphotypes (colormorphs) of the framework-forming cold-water coral Lophelia pertusa, as well as bioerosion and dissolution of dead framework. Calcification rates tended to increase with warming, showing temperature optima at ~ 14°C (white colormorph) and 10–12°C (orange colormorph) and decreased with increasing pCO2. Net dissolution occurred at aragonite undersaturation (ΩAr < 1) at ~ 1000 μatm pCO2. Under combined warming and acidification, the negative effects of acidification on growth were initially mitigated, but at ~ 1600 μatm dissolution prevailed. Respiration rates increased with warming, more strongly in orange corals, while acidification slightly suppressed respiration. Calcification and respiration rates as well as polyp mortality were consistently higher in orange corals. Mortality increased considerably at 14–15°C in both colormorphs. Bioerosion/dissolution of dead framework was not affected by warming alone but was significantly enhanced by acidification. While live corals may cope with intermediate levels of elevated pCO2 and temperature, long-term impacts beyond levels projected for the end of this century will likely lead to skeletal dissolution and increased mortality. Our findings further suggest that acidification causes accelerated degradation of dead framework even at aragonite saturated conditions, which will eventually compromise the structural integrity of cold-water coral reefs. |
format |
Article in Journal/Newspaper |
author |
Büscher, Janina V. Form, Armin U. Wisshak, Max Kiko, Rainer Riebesell, Ulf |
spellingShingle |
Büscher, Janina V. Form, Armin U. Wisshak, Max Kiko, Rainer Riebesell, Ulf Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
author_facet |
Büscher, Janina V. Form, Armin U. Wisshak, Max Kiko, Rainer Riebesell, Ulf |
author_sort |
Büscher, Janina V. |
title |
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
title_short |
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
title_full |
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
title_fullStr |
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
title_full_unstemmed |
Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion |
title_sort |
cold‐water coral ecosystems under future ocean change: live coral performance vs. framework dissolution and bioerosion |
publisher |
Wiley |
publishDate |
2022 |
url |
https://oceanrep.geomar.de/id/eprint/57024/ https://oceanrep.geomar.de/id/eprint/57024/13/Limnology%20Oceanography_2022_B%C3%BCscher_Cold%E2%80%90water%20coral%20ecosystems%20under%20future%20ocean%20change%20Live%20coral%20performance.pdf https://oceanrep.geomar.de/id/eprint/57024/2/lno12217_sup_0001_supinfo.pdf https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.12217 https://doi.org/10.1002/lno.12217 |
genre |
Lophelia pertusa Ocean acidification |
genre_facet |
Lophelia pertusa Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/57024/13/Limnology%20Oceanography_2022_B%C3%BCscher_Cold%E2%80%90water%20coral%20ecosystems%20under%20future%20ocean%20change%20Live%20coral%20performance.pdf https://oceanrep.geomar.de/id/eprint/57024/2/lno12217_sup_0001_supinfo.pdf Büscher, J. V., Form, A. U., Wisshak, M., Kiko, R. and Riebesell, U. (2022) Cold‐water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion. Open Access Limnology and Oceanography, 67 (11). pp. 2497-2515. DOI 10.1002/lno.12217 <https://doi.org/10.1002/lno.12217>. doi:10.1002/lno.12217 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/lno.12217 |
container_title |
Limnology and Oceanography |
container_volume |
67 |
container_issue |
11 |
container_start_page |
2497 |
op_container_end_page |
2515 |
_version_ |
1790602835614760960 |