Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar
This study was undertaken to examine the long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + ,K + ‐ ATPase ( NKA ) activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar pre‐smolts and smolts. The fish (mean ± s.e . initial b...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2013
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/jfb.12215 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12215 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12215 |
id |
crwiley:10.1111/jfb.12215 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/jfb.12215 2024-09-15T17:56:13+00:00 Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar Handeland, S. O. Imsland, A. K. Björnsson, B. Th. Stefansson, S. O. Norwegian Research Council 2013 http://dx.doi.org/10.1111/jfb.12215 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12215 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12215 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 83, issue 5, page 1197-1209 ISSN 0022-1112 1095-8649 journal-article 2013 crwiley https://doi.org/10.1111/jfb.12215 2024-08-27T04:27:47Z This study was undertaken to examine the long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + ,K + ‐ ATPase ( NKA ) activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar pre‐smolts and smolts. The fish (mean ± s.e . initial body mass = 15·9 ± 0·4 g) were reared on two photoperiods (continuous light, LL , and simulated natural photoperiod, LDN , 60° 25′ N) and two temperatures (8·3 and 12·7° C) from June to May of the following year. Mean body mass was affected by photoperiod, temperature and their interactions. Both temperature groups on LL developed peak levels in gill NKA activity from October to November, 4–5 months prior to the natural season for the parr–smolt transformation. Fish at 12° C showed peak levels in NKA activity 4–6 weeks before the fish at 8° C. Fish in all four experimental groups showed maximum NKA activity within a similar size range (113–162 g). The present findings further indicate that smoltification in S. salar is to some extent driven by size, and that S. salar will develop smolt characteristics, e.g . a marked increase in NKA activity, within a similar size range. Faster‐growing S. salar will, thus, reach this size threshold at a relatively younger age. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 83 5 1197 1209 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
This study was undertaken to examine the long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + ,K + ‐ ATPase ( NKA ) activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar pre‐smolts and smolts. The fish (mean ± s.e . initial body mass = 15·9 ± 0·4 g) were reared on two photoperiods (continuous light, LL , and simulated natural photoperiod, LDN , 60° 25′ N) and two temperatures (8·3 and 12·7° C) from June to May of the following year. Mean body mass was affected by photoperiod, temperature and their interactions. Both temperature groups on LL developed peak levels in gill NKA activity from October to November, 4–5 months prior to the natural season for the parr–smolt transformation. Fish at 12° C showed peak levels in NKA activity 4–6 weeks before the fish at 8° C. Fish in all four experimental groups showed maximum NKA activity within a similar size range (113–162 g). The present findings further indicate that smoltification in S. salar is to some extent driven by size, and that S. salar will develop smolt characteristics, e.g . a marked increase in NKA activity, within a similar size range. Faster‐growing S. salar will, thus, reach this size threshold at a relatively younger age. |
author2 |
Norwegian Research Council |
format |
Article in Journal/Newspaper |
author |
Handeland, S. O. Imsland, A. K. Björnsson, B. Th. Stefansson, S. O. |
spellingShingle |
Handeland, S. O. Imsland, A. K. Björnsson, B. Th. Stefansson, S. O. Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
author_facet |
Handeland, S. O. Imsland, A. K. Björnsson, B. Th. Stefansson, S. O. |
author_sort |
Handeland, S. O. |
title |
Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
title_short |
Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
title_full |
Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
title_fullStr |
Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
title_full_unstemmed |
Long‐term effects of photoperiod, temperature and their interaction on growth, gill Na + , K + ‐ ATPase activity, seawater tolerance and plasma growth‐hormone levels in Atlantic salmon Salmo salar |
title_sort |
long‐term effects of photoperiod, temperature and their interaction on growth, gill na + , k + ‐ atpase activity, seawater tolerance and plasma growth‐hormone levels in atlantic salmon salmo salar |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/jfb.12215 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12215 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12215 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 83, issue 5, page 1197-1209 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfb.12215 |
container_title |
Journal of Fish Biology |
container_volume |
83 |
container_issue |
5 |
container_start_page |
1197 |
op_container_end_page |
1209 |
_version_ |
1810432437806694400 |