Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range
The scleractinian cold-water corals (CWC) Lophelia pertusa and Madrepora oculata represent two major deep-sea reef-forming species that act as key ecosystem engineers over a wide temperature range, extending from the northern Atlantic (ca. 5–9 °C) to the Mediterranean Sea (ca. 11–13 °C). Recent rese...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | https://oceanrep.geomar.de/id/eprint/38413/ https://oceanrep.geomar.de/id/eprint/38413/1/Naumann.pdf https://doi.org/10.1016/j.dsr2.2013.05.025 |
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ftoceanrep:oai:oceanrep.geomar.de:38413 2023-05-15T17:08:41+02:00 Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range Naumann, Malik S. Orejas, Covadonga Ferrier-Pagès, Christine 2014 text https://oceanrep.geomar.de/id/eprint/38413/ https://oceanrep.geomar.de/id/eprint/38413/1/Naumann.pdf https://doi.org/10.1016/j.dsr2.2013.05.025 en eng Elsevier https://oceanrep.geomar.de/id/eprint/38413/1/Naumann.pdf Naumann, M. S., Orejas, C. and Ferrier-Pagès, C. (2014) Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range. Deep-Sea Research Part II-Topical Studies in Oceanography, 99 . pp. 36-41. DOI 10.1016/j.dsr2.2013.05.025 <https://doi.org/10.1016/j.dsr2.2013.05.025>. doi:10.1016/j.dsr2.2013.05.025 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2014 ftoceanrep https://doi.org/10.1016/j.dsr2.2013.05.025 2023-04-07T15:34:04Z The scleractinian cold-water corals (CWC) Lophelia pertusa and Madrepora oculata represent two major deep-sea reef-forming species that act as key ecosystem engineers over a wide temperature range, extending from the northern Atlantic (ca. 5–9 °C) to the Mediterranean Sea (ca. 11–13 °C). Recent research suggests that environmental parameters, such as food supply, settling substrate availability or aragonite saturation state may represent important precursors controlling habitat suitability for CWC. However, the effect of one principal environmental factor, temperature, on CWC key physiological processes is still unknown. In order to evaluate this effect on calcification, respiration, and dissolved organic carbon (DOC) net flux, colonies of Mediterranean L. pertusa and M. oculata were acclimated in aquaria to three temperatures (12, 9 and 6 °C), by consecutive decrements of 1 month duration. L. pertusa and M. oculata maintained at Mediterranean control conditions (i.e. 12 °C) displayed constant rates, on average respiring 4.8 and 4.0 µmol O2 cm−2 coral surface area d−1, calcifying 22.3 and 12.3 µmol CaCO3 g−1 skeletal dry weight d−1 and net releasing 2.6 and 3.1 µmol DOC cm−2 coral surface area d−1, respectively. Respiration of L. pertusa was not affected by lowered temperatures, while M. oculata respiration declined significantly (by 48%) when temperature decreased to 9 °C and 6 °C relative to controls. L. pertusa calcification at 9 °C was similar to controls, but decreased significantly (by 58%) at 6 °C. For M. oculata, calcification declined by 41% at 9 °C and by 69% at 6 °C. DOC net flux was similar throughout the experiment for both CWC. These findings reveal species-specific physiological responses by CWC within their natural temperature range. L. pertusa shows thermal acclimation in respiration and calcification, while these mechanisms appear largely absent in M. oculata. Conclusively, species-specific thermal acclimation may significantly affect the occurrence and local abundance of cosmopolitan CWC ... Article in Journal/Newspaper Lophelia pertusa OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Deep Sea Research Part II: Topical Studies in Oceanography 99 36 41 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
The scleractinian cold-water corals (CWC) Lophelia pertusa and Madrepora oculata represent two major deep-sea reef-forming species that act as key ecosystem engineers over a wide temperature range, extending from the northern Atlantic (ca. 5–9 °C) to the Mediterranean Sea (ca. 11–13 °C). Recent research suggests that environmental parameters, such as food supply, settling substrate availability or aragonite saturation state may represent important precursors controlling habitat suitability for CWC. However, the effect of one principal environmental factor, temperature, on CWC key physiological processes is still unknown. In order to evaluate this effect on calcification, respiration, and dissolved organic carbon (DOC) net flux, colonies of Mediterranean L. pertusa and M. oculata were acclimated in aquaria to three temperatures (12, 9 and 6 °C), by consecutive decrements of 1 month duration. L. pertusa and M. oculata maintained at Mediterranean control conditions (i.e. 12 °C) displayed constant rates, on average respiring 4.8 and 4.0 µmol O2 cm−2 coral surface area d−1, calcifying 22.3 and 12.3 µmol CaCO3 g−1 skeletal dry weight d−1 and net releasing 2.6 and 3.1 µmol DOC cm−2 coral surface area d−1, respectively. Respiration of L. pertusa was not affected by lowered temperatures, while M. oculata respiration declined significantly (by 48%) when temperature decreased to 9 °C and 6 °C relative to controls. L. pertusa calcification at 9 °C was similar to controls, but decreased significantly (by 58%) at 6 °C. For M. oculata, calcification declined by 41% at 9 °C and by 69% at 6 °C. DOC net flux was similar throughout the experiment for both CWC. These findings reveal species-specific physiological responses by CWC within their natural temperature range. L. pertusa shows thermal acclimation in respiration and calcification, while these mechanisms appear largely absent in M. oculata. Conclusively, species-specific thermal acclimation may significantly affect the occurrence and local abundance of cosmopolitan CWC ... |
format |
Article in Journal/Newspaper |
author |
Naumann, Malik S. Orejas, Covadonga Ferrier-Pagès, Christine |
spellingShingle |
Naumann, Malik S. Orejas, Covadonga Ferrier-Pagès, Christine Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
author_facet |
Naumann, Malik S. Orejas, Covadonga Ferrier-Pagès, Christine |
author_sort |
Naumann, Malik S. |
title |
Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
title_short |
Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
title_full |
Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
title_fullStr |
Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
title_full_unstemmed |
Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range |
title_sort |
species-specific physiological response by the cold-water corals lophelia pertusa and madrepora oculata to variations within their natural temperature range |
publisher |
Elsevier |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/38413/ https://oceanrep.geomar.de/id/eprint/38413/1/Naumann.pdf https://doi.org/10.1016/j.dsr2.2013.05.025 |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_relation |
https://oceanrep.geomar.de/id/eprint/38413/1/Naumann.pdf Naumann, M. S., Orejas, C. and Ferrier-Pagès, C. (2014) Species-specific physiological response by the cold-water corals Lophelia pertusa and Madrepora oculata to variations within their natural temperature range. Deep-Sea Research Part II-Topical Studies in Oceanography, 99 . pp. 36-41. DOI 10.1016/j.dsr2.2013.05.025 <https://doi.org/10.1016/j.dsr2.2013.05.025>. doi:10.1016/j.dsr2.2013.05.025 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2013.05.025 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
99 |
container_start_page |
36 |
op_container_end_page |
41 |
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1766064508062662656 |