Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level
In fishes, performance failure at high temperature is thought to be due to a limitation on oxygen delivery (the theory of oxygen and capacity limited thermal tolerance, OCLTT), which suggests that thermal tolerance and hypoxia tolerance might be functionally associated. Here we examined variation in...
Published in: | Journal of Experimental Biology |
---|---|
Main Authors: | , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Company of Biologists
2013
|
Subjects: | |
Online Access: | http://jeb.biologists.org/cgi/content/short/216/7/1183 https://doi.org/10.1242/jeb.080556 |
id |
fthighwire:oai:open-archive.highwire.org:jexbio:216/7/1183 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:jexbio:216/7/1183 2023-05-15T15:31:46+02:00 Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level Anttila, Katja Dhillon, Rashpal S. Boulding, Elizabeth G. Farrell, Anthony P. Glebe, Brian D. Elliott, Jake A. K. Wolters, William R. Schulte, Patricia M. 2013-04-01 00:00:00.0 text/html http://jeb.biologists.org/cgi/content/short/216/7/1183 https://doi.org/10.1242/jeb.080556 en eng Company of Biologists http://jeb.biologists.org/cgi/content/short/216/7/1183 http://dx.doi.org/10.1242/jeb.080556 Copyright (C) 2013, Company of Biologists Research Articles TEXT 2013 fthighwire https://doi.org/10.1242/jeb.080556 2015-03-01T01:22:20Z In fishes, performance failure at high temperature is thought to be due to a limitation on oxygen delivery (the theory of oxygen and capacity limited thermal tolerance, OCLTT), which suggests that thermal tolerance and hypoxia tolerance might be functionally associated. Here we examined variation in temperature and hypoxia tolerance among 41 families of Atlantic salmon ( Salmo salar ), which allowed us to evaluate the association between these two traits. Both temperature and hypoxia tolerance varied significantly among families and there was a significant positive correlation between critical maximum temperature (CT max ) and hypoxia tolerance, supporting the OCLTT concept. At the organ and cellular levels, we also discovered support for the OCLTT concept as relative ventricle mass (RVM) and cardiac myoglobin (Mb) levels both correlated positively with CT max ( R 2=0.21, P <0.001 and R 2=0.17, P =0.003, respectively). A large RVM has previously been shown to be associated with high cardiac output, which might facilitate tissue oxygen supply during elevated oxygen demand at high temperatures, while Mb facilitates the oxygen transfer from the blood to tissues, especially during hypoxia. The data presented here demonstrate for the first time that RVM and Mb are correlated with increased upper temperature tolerance in fish. High phenotypic variation between families and greater similarity among full- and half-siblings suggests that there is substantial standing genetic variation in thermal and hypoxia tolerance, which could respond to selection either in aquaculture or in response to anthropogenic stressors such as global climate change. Text Atlantic salmon Salmo salar HighWire Press (Stanford University) Journal of Experimental Biology 216 7 1183 1190 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Research Articles |
spellingShingle |
Research Articles Anttila, Katja Dhillon, Rashpal S. Boulding, Elizabeth G. Farrell, Anthony P. Glebe, Brian D. Elliott, Jake A. K. Wolters, William R. Schulte, Patricia M. Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
topic_facet |
Research Articles |
description |
In fishes, performance failure at high temperature is thought to be due to a limitation on oxygen delivery (the theory of oxygen and capacity limited thermal tolerance, OCLTT), which suggests that thermal tolerance and hypoxia tolerance might be functionally associated. Here we examined variation in temperature and hypoxia tolerance among 41 families of Atlantic salmon ( Salmo salar ), which allowed us to evaluate the association between these two traits. Both temperature and hypoxia tolerance varied significantly among families and there was a significant positive correlation between critical maximum temperature (CT max ) and hypoxia tolerance, supporting the OCLTT concept. At the organ and cellular levels, we also discovered support for the OCLTT concept as relative ventricle mass (RVM) and cardiac myoglobin (Mb) levels both correlated positively with CT max ( R 2=0.21, P <0.001 and R 2=0.17, P =0.003, respectively). A large RVM has previously been shown to be associated with high cardiac output, which might facilitate tissue oxygen supply during elevated oxygen demand at high temperatures, while Mb facilitates the oxygen transfer from the blood to tissues, especially during hypoxia. The data presented here demonstrate for the first time that RVM and Mb are correlated with increased upper temperature tolerance in fish. High phenotypic variation between families and greater similarity among full- and half-siblings suggests that there is substantial standing genetic variation in thermal and hypoxia tolerance, which could respond to selection either in aquaculture or in response to anthropogenic stressors such as global climate change. |
format |
Text |
author |
Anttila, Katja Dhillon, Rashpal S. Boulding, Elizabeth G. Farrell, Anthony P. Glebe, Brian D. Elliott, Jake A. K. Wolters, William R. Schulte, Patricia M. |
author_facet |
Anttila, Katja Dhillon, Rashpal S. Boulding, Elizabeth G. Farrell, Anthony P. Glebe, Brian D. Elliott, Jake A. K. Wolters, William R. Schulte, Patricia M. |
author_sort |
Anttila, Katja |
title |
Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
title_short |
Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
title_full |
Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
title_fullStr |
Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
title_full_unstemmed |
Variation in temperature tolerance among families of Atlantic salmon (Salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
title_sort |
variation in temperature tolerance among families of atlantic salmon (salmo salar) is associated with hypoxia tolerance, ventricle size and myoglobin level |
publisher |
Company of Biologists |
publishDate |
2013 |
url |
http://jeb.biologists.org/cgi/content/short/216/7/1183 https://doi.org/10.1242/jeb.080556 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://jeb.biologists.org/cgi/content/short/216/7/1183 http://dx.doi.org/10.1242/jeb.080556 |
op_rights |
Copyright (C) 2013, Company of Biologists |
op_doi |
https://doi.org/10.1242/jeb.080556 |
container_title |
Journal of Experimental Biology |
container_volume |
216 |
container_issue |
7 |
container_start_page |
1183 |
op_container_end_page |
1190 |
_version_ |
1766362286408073216 |