The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts
Atlantic salmon Salmo salar smolts were exposed to one of the four different aerobic exercise regimens for 10 weeks followed by a 1 week final smoltification period in fresh water and a subsequent eight‐day seawater transfer period. Samples of gill and intestinal tissue were taken at each time point...
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crwiley:10.1111/jfb.12475 2023-12-03T10:19:34+01:00 The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts Esbaugh, A. J. Kristensen, T. Takle, H. Grosell, M. Fishery and Aquaculture Industry Research Fund Research Council of Norway NSF 2014 http://dx.doi.org/10.1111/jfb.12475 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12475 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12475 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 85, issue 5, page 1355-1368 ISSN 0022-1112 1095-8649 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2014 crwiley https://doi.org/10.1111/jfb.12475 2023-11-09T13:14:26Z Atlantic salmon Salmo salar smolts were exposed to one of the four different aerobic exercise regimens for 10 weeks followed by a 1 week final smoltification period in fresh water and a subsequent eight‐day seawater transfer period. Samples of gill and intestinal tissue were taken at each time point and gene expression was used to assess the effects of exercise training on both branchial and intestinal osmoregulatory pathways. Real‐time polymerase chain reaction ( PCR ) analysis revealed that exercise training up‐regulated the expression of seawater relevant genes in the gills of S. salar smolts, including Na + , K + ATPase ( nka ) subunit α1b, the Na + , K + , 2 Cl − co‐transporter ( nkcc1 ) and cftr channel. These findings suggest that aerobic exercise stimulates expression of seawater ion transport pathways that may act to shift the seawater transfer window for S. salar smolts. Aerobic exercise also appeared to stimulate freshwater ion uptake mechanisms probably associated with an osmorespiratory compromise related to increased exercise. No differences were observed in plasma Na + and Cl − concentrations as a consequence of exercise treatment, but plasma Na + was lower during the final smoltification period in all treatments. No effects of exercise were observed for intestinal nkcc2 , nor the Mg 2+ transporters slc41a2 and transient receptor protein M7 ( trpm7 ); however, expression of both Mg 2+ transporters was affected by salinity transfer suggesting a dynamic role in Mg 2+ homeostasis in fishes. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library (via Crossref) Journal of Fish Biology 85 5 1355 1368 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Esbaugh, A. J. Kristensen, T. Takle, H. Grosell, M. The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Atlantic salmon Salmo salar smolts were exposed to one of the four different aerobic exercise regimens for 10 weeks followed by a 1 week final smoltification period in fresh water and a subsequent eight‐day seawater transfer period. Samples of gill and intestinal tissue were taken at each time point and gene expression was used to assess the effects of exercise training on both branchial and intestinal osmoregulatory pathways. Real‐time polymerase chain reaction ( PCR ) analysis revealed that exercise training up‐regulated the expression of seawater relevant genes in the gills of S. salar smolts, including Na + , K + ATPase ( nka ) subunit α1b, the Na + , K + , 2 Cl − co‐transporter ( nkcc1 ) and cftr channel. These findings suggest that aerobic exercise stimulates expression of seawater ion transport pathways that may act to shift the seawater transfer window for S. salar smolts. Aerobic exercise also appeared to stimulate freshwater ion uptake mechanisms probably associated with an osmorespiratory compromise related to increased exercise. No differences were observed in plasma Na + and Cl − concentrations as a consequence of exercise treatment, but plasma Na + was lower during the final smoltification period in all treatments. No effects of exercise were observed for intestinal nkcc2 , nor the Mg 2+ transporters slc41a2 and transient receptor protein M7 ( trpm7 ); however, expression of both Mg 2+ transporters was affected by salinity transfer suggesting a dynamic role in Mg 2+ homeostasis in fishes. |
author2 |
Fishery and Aquaculture Industry Research Fund Research Council of Norway NSF |
format |
Article in Journal/Newspaper |
author |
Esbaugh, A. J. Kristensen, T. Takle, H. Grosell, M. |
author_facet |
Esbaugh, A. J. Kristensen, T. Takle, H. Grosell, M. |
author_sort |
Esbaugh, A. J. |
title |
The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
title_short |
The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
title_full |
The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
title_fullStr |
The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
title_full_unstemmed |
The effects of sustained aerobic swimming on osmoregulatory pathways in Atlantic salmon Salmo salar smolts |
title_sort |
effects of sustained aerobic swimming on osmoregulatory pathways in atlantic salmon salmo salar smolts |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/jfb.12475 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12475 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12475 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 85, issue 5, page 1355-1368 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfb.12475 |
container_title |
Journal of Fish Biology |
container_volume |
85 |
container_issue |
5 |
container_start_page |
1355 |
op_container_end_page |
1368 |
_version_ |
1784266884072341504 |