Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs
Along the Norwegian coasts and margins, extensive reefs of the stony coral Lophelia pertusa act as hotspots for local biodiversity. Climate models project that the temperature of Atlantic deep waters could rise by 1–3°C by 2100. In this context, understanding the effects of temperature on the physio...
Published in: | Frontiers in Physiology |
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Online Access: | https://oceanrep.geomar.de/id/eprint/49000/ https://oceanrep.geomar.de/id/eprint/49000/1/fphys-10-01636.pdf https://oceanrep.geomar.de/id/eprint/49000/2/4824093.zip https://doi.org/10.3389/fphys.2019.01636 |
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ftoceanrep:oai:oceanrep.geomar.de:49000 2023-05-15T14:26:58+02:00 Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs Dorey, Narimane Gjelsvik, Øystein Kutti, Tina Büscher, Janina V. 2020-01-21 text archive https://oceanrep.geomar.de/id/eprint/49000/ https://oceanrep.geomar.de/id/eprint/49000/1/fphys-10-01636.pdf https://oceanrep.geomar.de/id/eprint/49000/2/4824093.zip https://doi.org/10.3389/fphys.2019.01636 en eng Frontiers https://oceanrep.geomar.de/id/eprint/49000/1/fphys-10-01636.pdf https://oceanrep.geomar.de/id/eprint/49000/2/4824093.zip Dorey, N., Gjelsvik, Ø., Kutti, T. and Büscher, J. V. (2020) Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs. Open Access Frontiers in Physiology, 10 . Art.Nr. 1636. DOI 10.3389/fphys.2019.01636 <https://doi.org/10.3389/fphys.2019.01636>. doi:10.3389/fphys.2019.01636 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2020 ftoceanrep https://doi.org/10.3389/fphys.2019.01636 2023-04-07T15:49:25Z Along the Norwegian coasts and margins, extensive reefs of the stony coral Lophelia pertusa act as hotspots for local biodiversity. Climate models project that the temperature of Atlantic deep waters could rise by 1–3°C by 2100. In this context, understanding the effects of temperature on the physiology of cold-water species will help in evaluating their resilience to future oceanic changes. We investigated the response of L. pertusa to stepwise short-term increases in temperature. We sampled corals from four reefs, two located north of the Arctic circle and two at the mid-Norwegian shelf (boreal). In on-board experiments (one per reef), the sampled fragments were exposed to increasing temperatures from 5 to 15°C over 58 h. Respiration increased linearly by threefold for a 10°C increase. The short-term temperature increase did not induce mortality, cellular (neutral red assay for lysosome membrane stability; but one exception) or oxidative stress (lipid peroxidation assay) – to a few exceptions. However, the variability of the respiration responses depended on the experiment (i.e., reef location), possibly linked to the genetic structure of the individuals that we sampled (e.g., clones or siblings). The corals from the Arctic and boreal regions appear to have a high tolerance to the rapid temperature fluctuations they experience in the field. Over extended periods of time however, an increased metabolism could deplete the energy stored by the corals, if not met by an increased food availability and/or uptake. Empirical data on organisms’ thermal performance curves, such as the one presented in this study for L. pertusa, will be useful to implement predictive models on the responses of species and populations to climate change. Article in Journal/Newspaper Arctic Arctic Climate change Lophelia pertusa OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Frontiers in Physiology 10 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Along the Norwegian coasts and margins, extensive reefs of the stony coral Lophelia pertusa act as hotspots for local biodiversity. Climate models project that the temperature of Atlantic deep waters could rise by 1–3°C by 2100. In this context, understanding the effects of temperature on the physiology of cold-water species will help in evaluating their resilience to future oceanic changes. We investigated the response of L. pertusa to stepwise short-term increases in temperature. We sampled corals from four reefs, two located north of the Arctic circle and two at the mid-Norwegian shelf (boreal). In on-board experiments (one per reef), the sampled fragments were exposed to increasing temperatures from 5 to 15°C over 58 h. Respiration increased linearly by threefold for a 10°C increase. The short-term temperature increase did not induce mortality, cellular (neutral red assay for lysosome membrane stability; but one exception) or oxidative stress (lipid peroxidation assay) – to a few exceptions. However, the variability of the respiration responses depended on the experiment (i.e., reef location), possibly linked to the genetic structure of the individuals that we sampled (e.g., clones or siblings). The corals from the Arctic and boreal regions appear to have a high tolerance to the rapid temperature fluctuations they experience in the field. Over extended periods of time however, an increased metabolism could deplete the energy stored by the corals, if not met by an increased food availability and/or uptake. Empirical data on organisms’ thermal performance curves, such as the one presented in this study for L. pertusa, will be useful to implement predictive models on the responses of species and populations to climate change. |
format |
Article in Journal/Newspaper |
author |
Dorey, Narimane Gjelsvik, Øystein Kutti, Tina Büscher, Janina V. |
spellingShingle |
Dorey, Narimane Gjelsvik, Øystein Kutti, Tina Büscher, Janina V. Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
author_facet |
Dorey, Narimane Gjelsvik, Øystein Kutti, Tina Büscher, Janina V. |
author_sort |
Dorey, Narimane |
title |
Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
title_short |
Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
title_full |
Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
title_fullStr |
Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
title_full_unstemmed |
Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs |
title_sort |
broad thermal tolerance in the cold-water coral lophelia pertusa from arctic and boreal reefs |
publisher |
Frontiers |
publishDate |
2020 |
url |
https://oceanrep.geomar.de/id/eprint/49000/ https://oceanrep.geomar.de/id/eprint/49000/1/fphys-10-01636.pdf https://oceanrep.geomar.de/id/eprint/49000/2/4824093.zip https://doi.org/10.3389/fphys.2019.01636 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change Lophelia pertusa |
genre_facet |
Arctic Arctic Climate change Lophelia pertusa |
op_relation |
https://oceanrep.geomar.de/id/eprint/49000/1/fphys-10-01636.pdf https://oceanrep.geomar.de/id/eprint/49000/2/4824093.zip Dorey, N., Gjelsvik, Ø., Kutti, T. and Büscher, J. V. (2020) Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs. Open Access Frontiers in Physiology, 10 . Art.Nr. 1636. DOI 10.3389/fphys.2019.01636 <https://doi.org/10.3389/fphys.2019.01636>. doi:10.3389/fphys.2019.01636 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fphys.2019.01636 |
container_title |
Frontiers in Physiology |
container_volume |
10 |
_version_ |
1766300511096537088 |