Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna
In the Southern Ocean, warming and freshening are expected to be prominent signals of climate change and the reduced ability of Antarctic marine organisms to cope with changing environmental conditions could challenge their future survival. The Antarctic limpet Nacella concinna is a macroinvertebrat...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/528030/ http://www.sciencedirect.com/science/article/pii/S0048969720359775 |
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ftnerc:oai:nora.nerc.ac.uk:528030 2023-05-15T13:41:45+02:00 Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna Navarro, Jorge M. Détrée, Camille Morley, Simon A. Cárdenas, Leyla Ortiz, Alejandro Vargas-Chacoff, Luis Paschke, Kurt Gallardo, Pablo Guillemin, Marie-Laure Gonzalez-Wevar, Claudio 2020-12-15 http://nora.nerc.ac.uk/id/eprint/528030/ http://www.sciencedirect.com/science/article/pii/S0048969720359775 unknown Elsevier Navarro, Jorge M.; Détrée, Camille; Morley, Simon A. orcid:0000-0002-7761-660X Cárdenas, Leyla; Ortiz, Alejandro; Vargas-Chacoff, Luis; Paschke, Kurt; Gallardo, Pablo; Guillemin, Marie-Laure; Gonzalez-Wevar, Claudio. 2020 Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna. Science of the Total Environment, 748, 142448. 12, pp. https://doi.org/10.1016/j.scitotenv.2020.142448 <https://doi.org/10.1016/j.scitotenv.2020.142448> Publication - Article PeerReviewed 2020 ftnerc https://doi.org/10.1016/j.scitotenv.2020.142448 2023-02-04T19:50:51Z In the Southern Ocean, warming and freshening are expected to be prominent signals of climate change and the reduced ability of Antarctic marine organisms to cope with changing environmental conditions could challenge their future survival. The Antarctic limpet Nacella concinna is a macroinvertebrate of rocky ecosystems, which occurs in high densities in the shallow subtidal zone. Subtidal individuals were exposed to a combination of temperatures (1, 4, 8, 11, 14 °C) and salinities (20 and 30 psu) for a 60-day period. A drastic increment in mortality was observed with seawater warming, showing that N. concinna is highly stenothermal, with limited ability to survive at temperatures warmer than 4 °C, although there was some degree of acclimation at 4 °C and ambient salinity (30 psu). This study confirmed the stenohaline characteristic of this species, with mortality reaching 50% and lower scope for growth at low salinity (20 psu) even at the control temperature (1 °C). At the sub-cellular level, limpets' low tolerance to out-of range salinity is illustrated by the activation of cell remodelling processes whereas the down-regulation of chaperones proteins and plasma membrane ATPase suggest that under the combination of warming and freshening N. concinna experiences a severe level of stress and devote much of its energy to somatic maintenance and survival. The drastic effect observed can be explained by its subtidal origin, an environment with more stable conditions. The surviving individuals at 1 °C and lowered salinity (20 psu) were either more tolerant or showing signs of acclimation after 60 days, but the combination of warming and freshening have a greater combined stress. Projections of climate change for end of the century for this part of the Antarctic can, therefore, result in a significant diminution of the subtidal population of N. concinna, affecting ecological interactions and diversity of the food web. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic Nacella ENVELOPE(-60.783,-60.783,-62.467,-62.467) Science of The Total Environment 748 142448 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
In the Southern Ocean, warming and freshening are expected to be prominent signals of climate change and the reduced ability of Antarctic marine organisms to cope with changing environmental conditions could challenge their future survival. The Antarctic limpet Nacella concinna is a macroinvertebrate of rocky ecosystems, which occurs in high densities in the shallow subtidal zone. Subtidal individuals were exposed to a combination of temperatures (1, 4, 8, 11, 14 °C) and salinities (20 and 30 psu) for a 60-day period. A drastic increment in mortality was observed with seawater warming, showing that N. concinna is highly stenothermal, with limited ability to survive at temperatures warmer than 4 °C, although there was some degree of acclimation at 4 °C and ambient salinity (30 psu). This study confirmed the stenohaline characteristic of this species, with mortality reaching 50% and lower scope for growth at low salinity (20 psu) even at the control temperature (1 °C). At the sub-cellular level, limpets' low tolerance to out-of range salinity is illustrated by the activation of cell remodelling processes whereas the down-regulation of chaperones proteins and plasma membrane ATPase suggest that under the combination of warming and freshening N. concinna experiences a severe level of stress and devote much of its energy to somatic maintenance and survival. The drastic effect observed can be explained by its subtidal origin, an environment with more stable conditions. The surviving individuals at 1 °C and lowered salinity (20 psu) were either more tolerant or showing signs of acclimation after 60 days, but the combination of warming and freshening have a greater combined stress. Projections of climate change for end of the century for this part of the Antarctic can, therefore, result in a significant diminution of the subtidal population of N. concinna, affecting ecological interactions and diversity of the food web. |
format |
Article in Journal/Newspaper |
author |
Navarro, Jorge M. Détrée, Camille Morley, Simon A. Cárdenas, Leyla Ortiz, Alejandro Vargas-Chacoff, Luis Paschke, Kurt Gallardo, Pablo Guillemin, Marie-Laure Gonzalez-Wevar, Claudio |
spellingShingle |
Navarro, Jorge M. Détrée, Camille Morley, Simon A. Cárdenas, Leyla Ortiz, Alejandro Vargas-Chacoff, Luis Paschke, Kurt Gallardo, Pablo Guillemin, Marie-Laure Gonzalez-Wevar, Claudio Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
author_facet |
Navarro, Jorge M. Détrée, Camille Morley, Simon A. Cárdenas, Leyla Ortiz, Alejandro Vargas-Chacoff, Luis Paschke, Kurt Gallardo, Pablo Guillemin, Marie-Laure Gonzalez-Wevar, Claudio |
author_sort |
Navarro, Jorge M. |
title |
Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
title_short |
Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
title_full |
Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
title_fullStr |
Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
title_full_unstemmed |
Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna |
title_sort |
evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the antarctic limpet nacella concinna |
publisher |
Elsevier |
publishDate |
2020 |
url |
http://nora.nerc.ac.uk/id/eprint/528030/ http://www.sciencedirect.com/science/article/pii/S0048969720359775 |
long_lat |
ENVELOPE(-60.783,-60.783,-62.467,-62.467) |
geographic |
Antarctic Southern Ocean The Antarctic Nacella |
geographic_facet |
Antarctic Southern Ocean The Antarctic Nacella |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Navarro, Jorge M.; Détrée, Camille; Morley, Simon A. orcid:0000-0002-7761-660X Cárdenas, Leyla; Ortiz, Alejandro; Vargas-Chacoff, Luis; Paschke, Kurt; Gallardo, Pablo; Guillemin, Marie-Laure; Gonzalez-Wevar, Claudio. 2020 Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna. Science of the Total Environment, 748, 142448. 12, pp. https://doi.org/10.1016/j.scitotenv.2020.142448 <https://doi.org/10.1016/j.scitotenv.2020.142448> |
op_doi |
https://doi.org/10.1016/j.scitotenv.2020.142448 |
container_title |
Science of The Total Environment |
container_volume |
748 |
container_start_page |
142448 |
_version_ |
1766156933638651904 |