Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions
Silvering of the skin, reduced condition factor, elevated gill Na + , K + ‐ATPase activity and well‐developed capacity to regulate the osmotic and ionic balance in sea water were observed in 1 and 2 year old hatchery‐reared Saimaa landlocked salmon Salmo salar m. sebago during April‐June. Loss of hy...
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crwiley:10.1111/j.1095-8649.2002.tb02425.x 2024-06-02T08:13:59+00:00 Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions Kiiskinen, P. Hyvärinen, H. Piironen, J. 2002 http://dx.doi.org/10.1111/j.1095-8649.2002.tb02425.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2002.tb02425.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2002.tb02425.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 60, issue 4, page 1015-1030 ISSN 0022-1112 1095-8649 journal-article 2002 crwiley https://doi.org/10.1111/j.1095-8649.2002.tb02425.x 2024-05-03T11:09:18Z Silvering of the skin, reduced condition factor, elevated gill Na + , K + ‐ATPase activity and well‐developed capacity to regulate the osmotic and ionic balance in sea water were observed in 1 and 2 year old hatchery‐reared Saimaa landlocked salmon Salmo salar m. sebago during April‐June. Loss of hypoosmoregulatory ability and gill Na + K + ‐ATPase activity was observed earlier in 2 year than 1 year old fish. Coincident with changes associated with smolting both age groups showed diminished osmoregulatory capacity in fresh water. Slow growth during May‐June may also be attributed to osmoregulatory difficulties in fresh water. These results support the suggestion that the developmental changes at smolting are seasonal and unrelated to any salinity changes and the idea of smolting as evidence of maladaptation of the fish to fresh water. Article in Journal/Newspaper Salmo salar Wiley Online Library Journal of Fish Biology 60 4 1015 1030 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Silvering of the skin, reduced condition factor, elevated gill Na + , K + ‐ATPase activity and well‐developed capacity to regulate the osmotic and ionic balance in sea water were observed in 1 and 2 year old hatchery‐reared Saimaa landlocked salmon Salmo salar m. sebago during April‐June. Loss of hypoosmoregulatory ability and gill Na + K + ‐ATPase activity was observed earlier in 2 year than 1 year old fish. Coincident with changes associated with smolting both age groups showed diminished osmoregulatory capacity in fresh water. Slow growth during May‐June may also be attributed to osmoregulatory difficulties in fresh water. These results support the suggestion that the developmental changes at smolting are seasonal and unrelated to any salinity changes and the idea of smolting as evidence of maladaptation of the fish to fresh water. |
format |
Article in Journal/Newspaper |
author |
Kiiskinen, P. Hyvärinen, H. Piironen, J. |
spellingShingle |
Kiiskinen, P. Hyvärinen, H. Piironen, J. Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
author_facet |
Kiiskinen, P. Hyvärinen, H. Piironen, J. |
author_sort |
Kiiskinen, P. |
title |
Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
title_short |
Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
title_full |
Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
title_fullStr |
Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
title_full_unstemmed |
Smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old Saimaa landlocked salmon under fish farm conditions |
title_sort |
smolting and seasonal variation in the smolt characteristics of one‐ and two‐year‐old saimaa landlocked salmon under fish farm conditions |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2002.tb02425.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2002.tb02425.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2002.tb02425.x |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
Journal of Fish Biology volume 60, issue 4, page 1015-1030 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2002.tb02425.x |
container_title |
Journal of Fish Biology |
container_volume |
60 |
container_issue |
4 |
container_start_page |
1015 |
op_container_end_page |
1030 |
_version_ |
1800737674198253568 |