Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions
WOS:000449824800014 International audience Polar cod (Boreogadus saida) is an important prey species in the Arctic ecosystem, yet its habitat is changing rapidly: climate change, through rising seawater temperatures and CO2 concentrations, is projected to be most pronounced in Arctic waters. This st...
Published in: | Journal of Experimental Biology |
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Online Access: | https://doi.org/10.1242/jeb.184473 https://hal.archives-ouvertes.fr/hal-02626091/file/Kunz_etal_JoEB_2018.pdf https://hal.archives-ouvertes.fr/hal-02626091 |
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fttriple:oai:gotriple.eu:10670/1.dk2me7 2023-05-15T14:30:31+02:00 Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions Kunz, Kristina Lore Claireaux, Guy Poertner, Hans-Otto Knust, Rainer Mark, Felix Christopher Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Universität Bremen Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2018-01-01 https://doi.org/10.1242/jeb.184473 https://hal.archives-ouvertes.fr/hal-02626091/file/Kunz_etal_JoEB_2018.pdf https://hal.archives-ouvertes.fr/hal-02626091 en eng HAL CCSD The Company of Biologists hal-02626091 doi:10.1242/jeb.184473 10670/1.dk2me7 https://hal.archives-ouvertes.fr/hal-02626091/file/Kunz_etal_JoEB_2018.pdf https://hal.archives-ouvertes.fr/hal-02626091 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology Journal of Experimental Biology, The Company of Biologists, 2018, 221 (21), pp.UNSP jeb184473. ⟨10.1242/jeb.184473⟩ ACL atlantic cod Climate change Aerobic scope dicentrarchus-labrax european sea bass arctic cod exhaustive exercise Gadids gadus-morhua l Hypercapnia metabolic cold adaptation rcp8.5 respiratory metabolism thermal tolerance envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1242/jeb.184473 2023-01-22T17:55:26Z WOS:000449824800014 International audience Polar cod (Boreogadus saida) is an important prey species in the Arctic ecosystem, yet its habitat is changing rapidly: climate change, through rising seawater temperatures and CO2 concentrations, is projected to be most pronounced in Arctic waters. This study aimed to investigate the influence of ocean acidification and warming on maximum performance parameters of B. saida as indicators for the species' acclimation capacities under environmental conditions projected for the end of this century. After 4 months at four acclimation temperatures (0, 3, 6, 8 degrees C) each combined with two P-CO2 levels (390 and 1170 mu atm), aerobic capacities and swimming performance of B. saida were recorded following a U-crit protocol. At both CO2 levels, standard metabolic rate (SMR) was elevated at the highest acclimation temperature indicating thermal limitations. Maximum metabolic rate (MMR) increased continuously with temperature, suggesting an optimum temperature for aerobic scope for exercise (AS(ex)) at 6 degrees C. Aerobic swimming performance (U-gait) increased with acclimation temperature irrespective of CO2 levels, while critical swimming speed (U-crit) did not reveal any clear trend with temperature. Hypercapnia evoked an increase in MMR (and thereby AS(ex)). However, swimming performance (both U-gait and U-crit) was impaired under elevated nearfuture P-CO2 conditions, indicating reduced efficiencies of oxygen turnover. The contribution of anaerobic metabolism to swimming performance was very low overall, and further reduced under hypercapnia. Our results revealed high sensitivities of maximum performance parameters (MMR, U-gait, U-crit) of B. saida to ocean acidification. Impaired swimming capacity under ocean acidification may reflect reduced future competitive strength of B. saida. Article in Journal/Newspaper Arctic cod Arctic atlantic cod Boreogadus saida Climate change Gadus morhua Ocean acidification polar cod Unknown Arctic Journal of Experimental Biology |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
ACL atlantic cod Climate change Aerobic scope dicentrarchus-labrax european sea bass arctic cod exhaustive exercise Gadids gadus-morhua l Hypercapnia metabolic cold adaptation rcp8.5 respiratory metabolism thermal tolerance envir geo |
spellingShingle |
ACL atlantic cod Climate change Aerobic scope dicentrarchus-labrax european sea bass arctic cod exhaustive exercise Gadids gadus-morhua l Hypercapnia metabolic cold adaptation rcp8.5 respiratory metabolism thermal tolerance envir geo Kunz, Kristina Lore Claireaux, Guy Poertner, Hans-Otto Knust, Rainer Mark, Felix Christopher Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
topic_facet |
ACL atlantic cod Climate change Aerobic scope dicentrarchus-labrax european sea bass arctic cod exhaustive exercise Gadids gadus-morhua l Hypercapnia metabolic cold adaptation rcp8.5 respiratory metabolism thermal tolerance envir geo |
description |
WOS:000449824800014 International audience Polar cod (Boreogadus saida) is an important prey species in the Arctic ecosystem, yet its habitat is changing rapidly: climate change, through rising seawater temperatures and CO2 concentrations, is projected to be most pronounced in Arctic waters. This study aimed to investigate the influence of ocean acidification and warming on maximum performance parameters of B. saida as indicators for the species' acclimation capacities under environmental conditions projected for the end of this century. After 4 months at four acclimation temperatures (0, 3, 6, 8 degrees C) each combined with two P-CO2 levels (390 and 1170 mu atm), aerobic capacities and swimming performance of B. saida were recorded following a U-crit protocol. At both CO2 levels, standard metabolic rate (SMR) was elevated at the highest acclimation temperature indicating thermal limitations. Maximum metabolic rate (MMR) increased continuously with temperature, suggesting an optimum temperature for aerobic scope for exercise (AS(ex)) at 6 degrees C. Aerobic swimming performance (U-gait) increased with acclimation temperature irrespective of CO2 levels, while critical swimming speed (U-crit) did not reveal any clear trend with temperature. Hypercapnia evoked an increase in MMR (and thereby AS(ex)). However, swimming performance (both U-gait and U-crit) was impaired under elevated nearfuture P-CO2 conditions, indicating reduced efficiencies of oxygen turnover. The contribution of anaerobic metabolism to swimming performance was very low overall, and further reduced under hypercapnia. Our results revealed high sensitivities of maximum performance parameters (MMR, U-gait, U-crit) of B. saida to ocean acidification. Impaired swimming capacity under ocean acidification may reflect reduced future competitive strength of B. saida. |
author2 |
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Universität Bremen Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Kunz, Kristina Lore Claireaux, Guy Poertner, Hans-Otto Knust, Rainer Mark, Felix Christopher |
author_facet |
Kunz, Kristina Lore Claireaux, Guy Poertner, Hans-Otto Knust, Rainer Mark, Felix Christopher |
author_sort |
Kunz, Kristina Lore |
title |
Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
title_short |
Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
title_full |
Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
title_fullStr |
Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
title_full_unstemmed |
Aerobic capacities and swimming performance of polar cod (Boreogadus saida) under ocean acidification and warming conditions |
title_sort |
aerobic capacities and swimming performance of polar cod (boreogadus saida) under ocean acidification and warming conditions |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://doi.org/10.1242/jeb.184473 https://hal.archives-ouvertes.fr/hal-02626091/file/Kunz_etal_JoEB_2018.pdf https://hal.archives-ouvertes.fr/hal-02626091 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic atlantic cod Boreogadus saida Climate change Gadus morhua Ocean acidification polar cod |
genre_facet |
Arctic cod Arctic atlantic cod Boreogadus saida Climate change Gadus morhua Ocean acidification polar cod |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology Journal of Experimental Biology, The Company of Biologists, 2018, 221 (21), pp.UNSP jeb184473. ⟨10.1242/jeb.184473⟩ |
op_relation |
hal-02626091 doi:10.1242/jeb.184473 10670/1.dk2me7 https://hal.archives-ouvertes.fr/hal-02626091/file/Kunz_etal_JoEB_2018.pdf https://hal.archives-ouvertes.fr/hal-02626091 |
op_rights |
other |
op_doi |
https://doi.org/10.1242/jeb.184473 |
container_title |
Journal of Experimental Biology |
_version_ |
1766304357867847680 |