Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures
Maximum growth rate of Atlantic cod (Gadus morhua) was determined at a range of temperatures representative of cod benthic habitats (1–13 °C) using wild animals obtained from a cold environment (southern Gulf of St. Lawrence stock, SG) and a mild environment (Bay of Fundy stock, BF). SG cod performe...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/f08-159 2023-12-17T10:27:01+01:00 Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures Dutil, Jean-Denis Jabouin, Coraline Larocque, Richard Desrosiers, Gaston Blier, Pierre U. 2008 http://dx.doi.org/10.1139/f08-159 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-159 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 12, page 2579-2591 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crcansciencepubl https://doi.org/10.1139/f08-159 2023-11-19T13:38:57Z Maximum growth rate of Atlantic cod (Gadus morhua) was determined at a range of temperatures representative of cod benthic habitats (1–13 °C) using wild animals obtained from a cold environment (southern Gulf of St. Lawrence stock, SG) and a mild environment (Bay of Fundy stock, BF). SG cod performed well over a broader range of temperatures than BF cod. Growth in mass was greater for SG than BF cod at any temperature below 7 °C. SG cod consumed twice as much food as BF cod at 1 and 3 °C. At 1 °C, growth in mass was positive for SG cod but negative for BF cod, whereas growth in length did not differ from 0 for both SG and BF cod. Liver size represented a larger proportion of body mass in SG cod at both low and high temperatures, and citrate synthase activity in the intestine exhibited a strong inverse relationship to temperature. The maximum growth capacity of SG cod was comparable with that of cod of similar size in various other stocks in the Atlantic. These observations are not consistent with the view that intensive size-selective fishing practices have resulted in a significant loss of innate growth capacity in SG cod. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 65 12 2579 2591 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Dutil, Jean-Denis Jabouin, Coraline Larocque, Richard Desrosiers, Gaston Blier, Pierre U. Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Maximum growth rate of Atlantic cod (Gadus morhua) was determined at a range of temperatures representative of cod benthic habitats (1–13 °C) using wild animals obtained from a cold environment (southern Gulf of St. Lawrence stock, SG) and a mild environment (Bay of Fundy stock, BF). SG cod performed well over a broader range of temperatures than BF cod. Growth in mass was greater for SG than BF cod at any temperature below 7 °C. SG cod consumed twice as much food as BF cod at 1 and 3 °C. At 1 °C, growth in mass was positive for SG cod but negative for BF cod, whereas growth in length did not differ from 0 for both SG and BF cod. Liver size represented a larger proportion of body mass in SG cod at both low and high temperatures, and citrate synthase activity in the intestine exhibited a strong inverse relationship to temperature. The maximum growth capacity of SG cod was comparable with that of cod of similar size in various other stocks in the Atlantic. These observations are not consistent with the view that intensive size-selective fishing practices have resulted in a significant loss of innate growth capacity in SG cod. |
format |
Article in Journal/Newspaper |
author |
Dutil, Jean-Denis Jabouin, Coraline Larocque, Richard Desrosiers, Gaston Blier, Pierre U. |
author_facet |
Dutil, Jean-Denis Jabouin, Coraline Larocque, Richard Desrosiers, Gaston Blier, Pierre U. |
author_sort |
Dutil, Jean-Denis |
title |
Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
title_short |
Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
title_full |
Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
title_fullStr |
Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
title_full_unstemmed |
Atlantic cod (Gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
title_sort |
atlantic cod (gadus morhua) from cold and warm environments differ in their maximum growth capacity at low temperatures |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/f08-159 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-159 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 12, page 2579-2591 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f08-159 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
65 |
container_issue |
12 |
container_start_page |
2579 |
op_container_end_page |
2591 |
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1785578791344537600 |