Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua)
Environmental influences (temperature and oxygenation) on cod metabolism and their impact on the ecology of this species were investigated. Limiting oxygen concentration curves (O-2 level ranging between 15 and 100% air saturation) were established at 2, 5 and 10 degreesC. The standard metabolic rat...
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ftarchimer:oai:archimer.ifremer.fr:428 2023-05-15T15:27:07+02:00 Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) Claireaux, Guy Webber, D Lagardere, Jean-paul Kerr, S 2000-12 application/pdf https://archimer.ifremer.fr/doc/2000/publication-428.pdf https://doi.org/10.1016/S1385-1101(00)00053-8 https://archimer.ifremer.fr/doc/00000/428/ eng eng Elsevier https://archimer.ifremer.fr/doc/2000/publication-428.pdf doi:10.1016/S1385-1101(00)00053-8 https://archimer.ifremer.fr/doc/00000/428/ 2000 Elsevier Science B.V. All rights reserved info:eu-repo/semantics/openAccess restricted use Journal of Sea Research (1385-1101) (Elsevier), 2000-12 , Vol. 44 , N. 3-4 , P. 257-265 Oxygen Temperature Physiological ecology Metabolism Atlantic cod text Publication info:eu-repo/semantics/article 2000 ftarchimer https://doi.org/10.1016/S1385-1101(00)00053-8 2021-09-23T20:13:07Z Environmental influences (temperature and oxygenation) on cod metabolism and their impact on the ecology of this species were investigated. Limiting oxygen concentration curves (O-2 level ranging between 15 and 100% air saturation) were established at 2, 5 and 10 degreesC. The standard metabolic rate (SMR), the maximum metabolic rate and the metabolic score were then modelled as functions of temperature and/or oxygen saturation. The mean SMR at 2, 5 and 10 degreesC were 19.8 +/- 4.9, 30.8 +/- 6.1 and 54.3 +/- 4.1 mg O-2 h(-1) kg(-1). respectively. Between 2 and 5 degreesC, the active metabolic rate of cod almost doubled from 65 to 120 mg O-2 h(-1) kg(-1), to reach 177 mg O-2 h(-1) kg(-1) at 10 degreesC. In terms of metabolic scope (MS), the temperature rise from 7 to 5 degreesC resulted in a two-fold increase from 45 to 89 mg O-2 h(-1) kg(-1), with MS reaching 123 mg O-2 h(-1) kg-l at 10 degreesC. Our proposed model describing the impact of temperature and oxygen level provides new insight into the energetic interactions which govern the relationship between Atlantic cod and its environment. We re-examined published experimental and field studies from the angle of the regulation of metabolic power. We suggest that, when faced with heterogeneous or unstable hydrological conditions, cod tend to behaviourally maximise their metabolic scope. Through this: adaptive response, fish reduce energy budgeting conflicts and presumably increase the probability of routinely operating away from lethal boundaries. Article in Journal/Newspaper atlantic cod Gadus morhua Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Journal of Sea Research 44 3-4 257 265 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Oxygen Temperature Physiological ecology Metabolism Atlantic cod |
spellingShingle |
Oxygen Temperature Physiological ecology Metabolism Atlantic cod Claireaux, Guy Webber, D Lagardere, Jean-paul Kerr, S Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
topic_facet |
Oxygen Temperature Physiological ecology Metabolism Atlantic cod |
description |
Environmental influences (temperature and oxygenation) on cod metabolism and their impact on the ecology of this species were investigated. Limiting oxygen concentration curves (O-2 level ranging between 15 and 100% air saturation) were established at 2, 5 and 10 degreesC. The standard metabolic rate (SMR), the maximum metabolic rate and the metabolic score were then modelled as functions of temperature and/or oxygen saturation. The mean SMR at 2, 5 and 10 degreesC were 19.8 +/- 4.9, 30.8 +/- 6.1 and 54.3 +/- 4.1 mg O-2 h(-1) kg(-1). respectively. Between 2 and 5 degreesC, the active metabolic rate of cod almost doubled from 65 to 120 mg O-2 h(-1) kg(-1), to reach 177 mg O-2 h(-1) kg(-1) at 10 degreesC. In terms of metabolic scope (MS), the temperature rise from 7 to 5 degreesC resulted in a two-fold increase from 45 to 89 mg O-2 h(-1) kg(-1), with MS reaching 123 mg O-2 h(-1) kg-l at 10 degreesC. Our proposed model describing the impact of temperature and oxygen level provides new insight into the energetic interactions which govern the relationship between Atlantic cod and its environment. We re-examined published experimental and field studies from the angle of the regulation of metabolic power. We suggest that, when faced with heterogeneous or unstable hydrological conditions, cod tend to behaviourally maximise their metabolic scope. Through this: adaptive response, fish reduce energy budgeting conflicts and presumably increase the probability of routinely operating away from lethal boundaries. |
format |
Article in Journal/Newspaper |
author |
Claireaux, Guy Webber, D Lagardere, Jean-paul Kerr, S |
author_facet |
Claireaux, Guy Webber, D Lagardere, Jean-paul Kerr, S |
author_sort |
Claireaux, Guy |
title |
Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
title_short |
Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
title_full |
Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
title_fullStr |
Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
title_full_unstemmed |
Influence of water temperature and oxygenation on the aerobic metabolic scope of Atlantic cod (Gadus morhua) |
title_sort |
influence of water temperature and oxygenation on the aerobic metabolic scope of atlantic cod (gadus morhua) |
publisher |
Elsevier |
publishDate |
2000 |
url |
https://archimer.ifremer.fr/doc/2000/publication-428.pdf https://doi.org/10.1016/S1385-1101(00)00053-8 https://archimer.ifremer.fr/doc/00000/428/ |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Journal of Sea Research (1385-1101) (Elsevier), 2000-12 , Vol. 44 , N. 3-4 , P. 257-265 |
op_relation |
https://archimer.ifremer.fr/doc/2000/publication-428.pdf doi:10.1016/S1385-1101(00)00053-8 https://archimer.ifremer.fr/doc/00000/428/ |
op_rights |
2000 Elsevier Science B.V. All rights reserved info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/S1385-1101(00)00053-8 |
container_title |
Journal of Sea Research |
container_volume |
44 |
container_issue |
3-4 |
container_start_page |
257 |
op_container_end_page |
265 |
_version_ |
1766357584743235584 |