Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions
The global decrease in seawater pH known as ocean acidification has important ecological consequences and is an imminent threat for numerous marine organisms. Even though the deep sea is generally considered to be a stable environment, it can be dynamic and vulnerable to anthropogenic disturbances i...
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ftpubmed:oai:pubmedcentral.nih.gov:6164558 2023-05-15T17:08:40+02:00 Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions Gómez, Carlos E. Wickes, Leslie Deegan, Dan Etnoyer, Peter J. Cordes, Erik E. 2018-09-27 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164558/ http://www.ncbi.nlm.nih.gov/pubmed/30280039 https://doi.org/10.7717/peerj.5671 en eng PeerJ Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164558/ http://www.ncbi.nlm.nih.gov/pubmed/30280039 http://dx.doi.org/10.7717/peerj.5671 ©2018 Gómez et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. CC-BY Marine Biology Text 2018 ftpubmed https://doi.org/10.7717/peerj.5671 2018-10-07T00:41:00Z The global decrease in seawater pH known as ocean acidification has important ecological consequences and is an imminent threat for numerous marine organisms. Even though the deep sea is generally considered to be a stable environment, it can be dynamic and vulnerable to anthropogenic disturbances including increasing temperature, deoxygenation, ocean acidification and pollution. Lophelia pertusa is among the better-studied cold-water corals but was only recently documented along the US West Coast, growing in acidified conditions. In the present study, coral fragments were collected at ∼300 m depth along the southern California margin and kept in recirculating tanks simulating conditions normally found in the natural environment for this species. At the collection site, waters exhibited persistently low pH and aragonite saturation states (Ωarag) with average values for pH of 7.66 ± 0.01 and Ωarag of 0.81 ± 0.07. In the laboratory, fragments were grown for three weeks in “favorable” pH/Ωarag of 7.9/1.47 (aragonite saturated) and “unfavorable” pH/Ωarag of 7.6/0.84 (aragonite undersaturated) conditions. There was a highly significant treatment effect (P < 0.001) with an average% net calcification for favorable conditions of 0.023 ± 0.009% d−1 and net dissolution of −0.010 ± 0.014% d-1 for unfavorable conditions. We did not find any treatment effect on feeding rates, which suggests that corals did not depress feeding in low pH/ Ωarag in an attempt to conserve energy. However, these results suggest that the suboptimal conditions for L. pertusa from the California margin could potentially threaten the persistence of this cold-water coral with negative consequences for the future stability of this already fragile ecosystem. Text Lophelia pertusa Ocean acidification PubMed Central (PMC) PeerJ 6 e5671 |
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Marine Biology |
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Marine Biology Gómez, Carlos E. Wickes, Leslie Deegan, Dan Etnoyer, Peter J. Cordes, Erik E. Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
topic_facet |
Marine Biology |
description |
The global decrease in seawater pH known as ocean acidification has important ecological consequences and is an imminent threat for numerous marine organisms. Even though the deep sea is generally considered to be a stable environment, it can be dynamic and vulnerable to anthropogenic disturbances including increasing temperature, deoxygenation, ocean acidification and pollution. Lophelia pertusa is among the better-studied cold-water corals but was only recently documented along the US West Coast, growing in acidified conditions. In the present study, coral fragments were collected at ∼300 m depth along the southern California margin and kept in recirculating tanks simulating conditions normally found in the natural environment for this species. At the collection site, waters exhibited persistently low pH and aragonite saturation states (Ωarag) with average values for pH of 7.66 ± 0.01 and Ωarag of 0.81 ± 0.07. In the laboratory, fragments were grown for three weeks in “favorable” pH/Ωarag of 7.9/1.47 (aragonite saturated) and “unfavorable” pH/Ωarag of 7.6/0.84 (aragonite undersaturated) conditions. There was a highly significant treatment effect (P < 0.001) with an average% net calcification for favorable conditions of 0.023 ± 0.009% d−1 and net dissolution of −0.010 ± 0.014% d-1 for unfavorable conditions. We did not find any treatment effect on feeding rates, which suggests that corals did not depress feeding in low pH/ Ωarag in an attempt to conserve energy. However, these results suggest that the suboptimal conditions for L. pertusa from the California margin could potentially threaten the persistence of this cold-water coral with negative consequences for the future stability of this already fragile ecosystem. |
format |
Text |
author |
Gómez, Carlos E. Wickes, Leslie Deegan, Dan Etnoyer, Peter J. Cordes, Erik E. |
author_facet |
Gómez, Carlos E. Wickes, Leslie Deegan, Dan Etnoyer, Peter J. Cordes, Erik E. |
author_sort |
Gómez, Carlos E. |
title |
Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
title_short |
Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
title_full |
Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
title_fullStr |
Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
title_full_unstemmed |
Growth and feeding of deep-sea coral Lophelia pertusa from the California margin under simulated ocean acidification conditions |
title_sort |
growth and feeding of deep-sea coral lophelia pertusa from the california margin under simulated ocean acidification conditions |
publisher |
PeerJ Inc. |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164558/ http://www.ncbi.nlm.nih.gov/pubmed/30280039 https://doi.org/10.7717/peerj.5671 |
genre |
Lophelia pertusa Ocean acidification |
genre_facet |
Lophelia pertusa Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164558/ http://www.ncbi.nlm.nih.gov/pubmed/30280039 http://dx.doi.org/10.7717/peerj.5671 |
op_rights |
©2018 Gómez et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
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CC-BY |
op_doi |
https://doi.org/10.7717/peerj.5671 |
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e5671 |
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