Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport
Wild Atlantic salmon (Salmo salar) collected during their spawning migration were transported to the laboratory to investigate effects of exhaustive exercise on acid–base regulation and blood gas transport. Exhaustive exercise resulted in a very large extracellular acidosis which lasted for about 4...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1991
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Online Access: | http://dx.doi.org/10.1139/f91-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-103 |
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crcansciencepubl:10.1139/f91-103 2024-09-15T17:55:57+00:00 Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport Tufts, B. L. Tang, Y. Tufts, K. Boutilier, R. G. 1991 http://dx.doi.org/10.1139/f91-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-103 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 48, issue 5, page 868-874 ISSN 0706-652X 1205-7533 journal-article 1991 crcansciencepubl https://doi.org/10.1139/f91-103 2024-08-29T04:08:49Z Wild Atlantic salmon (Salmo salar) collected during their spawning migration were transported to the laboratory to investigate effects of exhaustive exercise on acid–base regulation and blood gas transport. Exhaustive exercise resulted in a very large extracellular acidosis which lasted for about 4 h. Blood lactate levels were extremely high and remained significantly elevated for at least 8 h after exercise. The degree of erythrocyte pH regulation was minimal and there was a significant fall in both erythrocyte pH and haemoglobin:oxygen carriage during the recovery period. Together, the significant decrease in erythrocyte pH and a significant reduction in the arterial partial pressure of oxygen resulted in a significant fall in arterial oxygen content immediately after exercise. Thereafter, arterial oxygen content was maintained by a significant increase in hematocrit and an increase in the arterial partial pressure of oxygen. Despite the extremely large lactacidosis in these wild fish, there were no mortalities during the recovery period. However, significant mortality has been reported in studies on domestic salmonids, and this suggests that wild salmonids may be better adapted for exhaustive exercise. This result supports the rationale of a "catch and release" recreational fishery for Atlantic salmon. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 48 5 868 874 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Wild Atlantic salmon (Salmo salar) collected during their spawning migration were transported to the laboratory to investigate effects of exhaustive exercise on acid–base regulation and blood gas transport. Exhaustive exercise resulted in a very large extracellular acidosis which lasted for about 4 h. Blood lactate levels were extremely high and remained significantly elevated for at least 8 h after exercise. The degree of erythrocyte pH regulation was minimal and there was a significant fall in both erythrocyte pH and haemoglobin:oxygen carriage during the recovery period. Together, the significant decrease in erythrocyte pH and a significant reduction in the arterial partial pressure of oxygen resulted in a significant fall in arterial oxygen content immediately after exercise. Thereafter, arterial oxygen content was maintained by a significant increase in hematocrit and an increase in the arterial partial pressure of oxygen. Despite the extremely large lactacidosis in these wild fish, there were no mortalities during the recovery period. However, significant mortality has been reported in studies on domestic salmonids, and this suggests that wild salmonids may be better adapted for exhaustive exercise. This result supports the rationale of a "catch and release" recreational fishery for Atlantic salmon. |
format |
Article in Journal/Newspaper |
author |
Tufts, B. L. Tang, Y. Tufts, K. Boutilier, R. G. |
spellingShingle |
Tufts, B. L. Tang, Y. Tufts, K. Boutilier, R. G. Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
author_facet |
Tufts, B. L. Tang, Y. Tufts, K. Boutilier, R. G. |
author_sort |
Tufts, B. L. |
title |
Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
title_short |
Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
title_full |
Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
title_fullStr |
Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
title_full_unstemmed |
Exhaustive Exercise in "Wild" Atlantic Salmon ( Salmo saiar): Acid–Base Regulation and Blood Gas Transport |
title_sort |
exhaustive exercise in "wild" atlantic salmon ( salmo saiar): acid–base regulation and blood gas transport |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/f91-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/f91-103 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 48, issue 5, page 868-874 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f91-103 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
48 |
container_issue |
5 |
container_start_page |
868 |
op_container_end_page |
874 |
_version_ |
1810432171242946560 |