Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium
Adult Atlantic salmon (Salmo salar) were exposed for 48 h to water from acidified (pH 5.2) Fossbekk River (Norway), with and without 94 µg aluminium (Al)/L added as AlCl 3 , and to water from circumneutral (pH 6.7) Ims River (Norway) (controls). Cardiac output, heart rate, and stroke volume were mon...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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1999
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Online Access: | http://dx.doi.org/10.1139/f98-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-168 |
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crcansciencepubl:10.1139/f98-168 2024-09-15T17:56:13+00:00 Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium Brodeur, Julie C Ytrestøyl, Trine Finstad, Bengt McKinley, R Scott 1999 http://dx.doi.org/10.1139/f98-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-168 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 56, issue 2, page 184-190 ISSN 0706-652X 1205-7533 journal-article 1999 crcansciencepubl https://doi.org/10.1139/f98-168 2024-08-01T04:10:04Z Adult Atlantic salmon (Salmo salar) were exposed for 48 h to water from acidified (pH 5.2) Fossbekk River (Norway), with and without 94 µg aluminium (Al)/L added as AlCl 3 , and to water from circumneutral (pH 6.7) Ims River (Norway) (controls). Cardiac output, heart rate, and stroke volume were monitored throughout the exposure period with Doppler flow probes placed around the ventral aorta of the fish. Fish exposed to Fossbekk River water without added Al showed few physiological disturbances. When 94 µg Al/L was added to Fossbekk River water, most of the fish died before the end of the 48-h exposure period, and a large elevation in heart rate was observed together with a decrease in plasma chloride concentrations and an increase in haematocrit, plasma glucose and plasma cortisol levels. Cardiac output was maintained at basal levels during the first 24 h of exposure because the tachycardia was accompanied by a concomitant reduction of stroke volume. Signs of arrhythmia appeared after 32 h of exposure and were associated with a further decrease in stroke volume that caused cardiac output to decrease below basal levels. The incapacity of the tachycardia to elevate cardiac output and the subsequent death of the fish suggest that this response to low pH and Al is more of a maladaptation reaction than a compensatory or adaptative reaction. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 56 2 184 190 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Adult Atlantic salmon (Salmo salar) were exposed for 48 h to water from acidified (pH 5.2) Fossbekk River (Norway), with and without 94 µg aluminium (Al)/L added as AlCl 3 , and to water from circumneutral (pH 6.7) Ims River (Norway) (controls). Cardiac output, heart rate, and stroke volume were monitored throughout the exposure period with Doppler flow probes placed around the ventral aorta of the fish. Fish exposed to Fossbekk River water without added Al showed few physiological disturbances. When 94 µg Al/L was added to Fossbekk River water, most of the fish died before the end of the 48-h exposure period, and a large elevation in heart rate was observed together with a decrease in plasma chloride concentrations and an increase in haematocrit, plasma glucose and plasma cortisol levels. Cardiac output was maintained at basal levels during the first 24 h of exposure because the tachycardia was accompanied by a concomitant reduction of stroke volume. Signs of arrhythmia appeared after 32 h of exposure and were associated with a further decrease in stroke volume that caused cardiac output to decrease below basal levels. The incapacity of the tachycardia to elevate cardiac output and the subsequent death of the fish suggest that this response to low pH and Al is more of a maladaptation reaction than a compensatory or adaptative reaction. |
format |
Article in Journal/Newspaper |
author |
Brodeur, Julie C Ytrestøyl, Trine Finstad, Bengt McKinley, R Scott |
spellingShingle |
Brodeur, Julie C Ytrestøyl, Trine Finstad, Bengt McKinley, R Scott Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
author_facet |
Brodeur, Julie C Ytrestøyl, Trine Finstad, Bengt McKinley, R Scott |
author_sort |
Brodeur, Julie C |
title |
Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
title_short |
Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
title_full |
Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
title_fullStr |
Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
title_full_unstemmed |
Increase of heart rate without elevation of cardiac output in adult Atlantic salmon ( Salmo salar) exposed to acidic water and aluminium |
title_sort |
increase of heart rate without elevation of cardiac output in adult atlantic salmon ( salmo salar) exposed to acidic water and aluminium |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/f98-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-168 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 56, issue 2, page 184-190 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f98-168 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
56 |
container_issue |
2 |
container_start_page |
184 |
op_container_end_page |
190 |
_version_ |
1810432431708176384 |