A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts
Anthropogenic use of water systems may cause temperature fluctuations between tributaries and large rivers for which physiological population related-effects on osmoregulatory capacity of Atlantic salmon are not well described. We simulated the downstream route in the case of the River Meuse basin t...
Published in: | Fish Physiology and Biochemistry |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://researchportal.unamur.be/en/publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f https://doi.org/10.1007/s10695-019-00666-x http://www.scopus.com/inward/record.url?scp=85068071317&partnerID=8YFLogxK https://link.springer.com/content/pdf/10.1007%252Fs10695-019-00666-x.pdf |
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ftunivnamurcrisp:oai:pure.unamur.be:publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f 2024-06-23T07:51:17+00:00 A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts Bernard, Benoît Mandiki, Robert Duchatel, Victoria Rollin, Xavier Kestemont, Patrick 2019-08-15 https://researchportal.unamur.be/en/publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f https://doi.org/10.1007/s10695-019-00666-x http://www.scopus.com/inward/record.url?scp=85068071317&partnerID=8YFLogxK https://link.springer.com/content/pdf/10.1007%252Fs10695-019-00666-x.pdf eng eng https://researchportal.unamur.be/en/publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f info:eu-repo/semantics/closedAccess Bernard , B , Mandiki , R , Duchatel , V , Rollin , X & Kestemont , P 2019 , ' A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts ' , Fish Physiology and Biochemistry , vol. 45 , no. 4 , pp. 1245-1260 . https://doi.org/10.1007/s10695-019-00666-x Atlantic salmon Endocrine features Osmoregulation Smoltification Temperature article 2019 ftunivnamurcrisp https://doi.org/10.1007/s10695-019-00666-x 2024-05-27T14:13:34Z Anthropogenic use of water systems may cause temperature fluctuations between tributaries and large rivers for which physiological population related-effects on osmoregulatory capacity of Atlantic salmon are not well described. We simulated the downstream route in the case of the River Meuse basin to investigate the impact of a 5 °C temperature shift during smoltification on hypo-osmoregulatory capacities of smolts. Three temperature regimes were tested: control temperature-treatment (T1) without temperature shift, early (T2) or late (T3) temperature shift-treatment. Moreover, fish were subjected to seawater challenge during and after the downstream migration peak time. Two allochtonous strains were used: Loire-Allier (LA) and Cong (CG). Without temperature shift (T1), significant differences between the strains were noticed in the peak date and maximum activity of gill Na+/K+ATPase as well as in plasma sodium and potassium concentrations. For early (T2) and late (T3) temperature shift-treatments, gill Na+/K+ATPase activity, plasma osmolality and ion concentrations were negatively influenced in both strains. After salinity challenge, the highest osmolality was measured in smolts subjected to the temperature shift. Predictably circulating levels of GH and IGF-1 changed over the smolting period but they did not explain the observed modifications in hypo-osmoregulatory abilities whatever the population. The results show a negative impact of a temperature shift on hypo-osmoregulatory capacities of smolts regardless of population differences in smoltification timing under conditions without temperature shift. The resilience of such physiological impact was sustained at least for 1 week, comforting the role of high temperature in influencing the rate of changes occurring during smoltification. Therefore, favouring the downstream migration to help smolts reach the sea faster may mitigate the impact of a rapid temperature increase. Article in Journal/Newspaper Atlantic salmon Salmo salar Research Portal - University of Namur Fish Physiology and Biochemistry 45 4 1245 1260 |
institution |
Open Polar |
collection |
Research Portal - University of Namur |
op_collection_id |
ftunivnamurcrisp |
language |
English |
topic |
Atlantic salmon Endocrine features Osmoregulation Smoltification Temperature |
spellingShingle |
Atlantic salmon Endocrine features Osmoregulation Smoltification Temperature Bernard, Benoît Mandiki, Robert Duchatel, Victoria Rollin, Xavier Kestemont, Patrick A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
topic_facet |
Atlantic salmon Endocrine features Osmoregulation Smoltification Temperature |
description |
Anthropogenic use of water systems may cause temperature fluctuations between tributaries and large rivers for which physiological population related-effects on osmoregulatory capacity of Atlantic salmon are not well described. We simulated the downstream route in the case of the River Meuse basin to investigate the impact of a 5 °C temperature shift during smoltification on hypo-osmoregulatory capacities of smolts. Three temperature regimes were tested: control temperature-treatment (T1) without temperature shift, early (T2) or late (T3) temperature shift-treatment. Moreover, fish were subjected to seawater challenge during and after the downstream migration peak time. Two allochtonous strains were used: Loire-Allier (LA) and Cong (CG). Without temperature shift (T1), significant differences between the strains were noticed in the peak date and maximum activity of gill Na+/K+ATPase as well as in plasma sodium and potassium concentrations. For early (T2) and late (T3) temperature shift-treatments, gill Na+/K+ATPase activity, plasma osmolality and ion concentrations were negatively influenced in both strains. After salinity challenge, the highest osmolality was measured in smolts subjected to the temperature shift. Predictably circulating levels of GH and IGF-1 changed over the smolting period but they did not explain the observed modifications in hypo-osmoregulatory abilities whatever the population. The results show a negative impact of a temperature shift on hypo-osmoregulatory capacities of smolts regardless of population differences in smoltification timing under conditions without temperature shift. The resilience of such physiological impact was sustained at least for 1 week, comforting the role of high temperature in influencing the rate of changes occurring during smoltification. Therefore, favouring the downstream migration to help smolts reach the sea faster may mitigate the impact of a rapid temperature increase. |
format |
Article in Journal/Newspaper |
author |
Bernard, Benoît Mandiki, Robert Duchatel, Victoria Rollin, Xavier Kestemont, Patrick |
author_facet |
Bernard, Benoît Mandiki, Robert Duchatel, Victoria Rollin, Xavier Kestemont, Patrick |
author_sort |
Bernard, Benoît |
title |
A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
title_short |
A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
title_full |
A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
title_fullStr |
A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
title_full_unstemmed |
A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts |
title_sort |
temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of atlantic salmon (salmo salar l.) smolts |
publishDate |
2019 |
url |
https://researchportal.unamur.be/en/publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f https://doi.org/10.1007/s10695-019-00666-x http://www.scopus.com/inward/record.url?scp=85068071317&partnerID=8YFLogxK https://link.springer.com/content/pdf/10.1007%252Fs10695-019-00666-x.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Bernard , B , Mandiki , R , Duchatel , V , Rollin , X & Kestemont , P 2019 , ' A temperature shift on the migratory route similarly impairs hypo-osmoregulatory capacities in two strains of Atlantic salmon (Salmo salar L.) smolts ' , Fish Physiology and Biochemistry , vol. 45 , no. 4 , pp. 1245-1260 . https://doi.org/10.1007/s10695-019-00666-x |
op_relation |
https://researchportal.unamur.be/en/publications/a3393838-0ef3-4ae3-8b62-4eb2f32b453f |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10695-019-00666-x |
container_title |
Fish Physiology and Biochemistry |
container_volume |
45 |
container_issue |
4 |
container_start_page |
1245 |
op_container_end_page |
1260 |
_version_ |
1802642336991150080 |