Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar
Parameters associated with the parr–smolt transformation were compared in cultured 1+ anadromous and nonanadromous Atlantic salmon derived from wild broodstock collected in Gambo River, Newfoundland. Progeny of nonanadromous salmon were significantly longer at swim-up than progeny of anadromous salm...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
1991
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Online Access: | http://dx.doi.org/10.1139/z91-289 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-289 |
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crcansciencepubl:10.1139/z91-289 2024-09-15T17:56:07+00:00 Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar Birt, Tim P. Green, John M. Davidson, William S. 1991 http://dx.doi.org/10.1139/z91-289 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-289 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 69, issue 8, page 2075-2084 ISSN 0008-4301 1480-3283 journal-article 1991 crcansciencepubl https://doi.org/10.1139/z91-289 2024-08-08T04:13:40Z Parameters associated with the parr–smolt transformation were compared in cultured 1+ anadromous and nonanadromous Atlantic salmon derived from wild broodstock collected in Gambo River, Newfoundland. Progeny of nonanadromous salmon were significantly longer at swim-up than progeny of anadromous salmon, although consistent differences in growth performance were not observed during most of the 1 st year of development. Anadromous salmon grew more rapidly than nonanadromous salmon in the spring months during the smolting period. Distinct differences were noted between groups in seasonal levels of body silvering, gill Na + –K + ATPase activity, and size and number of gill chloride cells. Most male nonanadromous salmon matured as "post-smolts," whereas maturation was not observed among female nonanadromous nor among either sex in the anadromous group. Differences between anadromous and nonanadromous salmon were not observed in seasonal levels of body moisture, plasma Na + and Cl − , condition factor, or salinity tolerance. Differences noted between groups are probably genetic in nature and suggest that the two forms of salmon in Gambo River represent separate breeding populations. Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Canadian Science Publishing Canadian Journal of Zoology 69 8 2075 2084 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Parameters associated with the parr–smolt transformation were compared in cultured 1+ anadromous and nonanadromous Atlantic salmon derived from wild broodstock collected in Gambo River, Newfoundland. Progeny of nonanadromous salmon were significantly longer at swim-up than progeny of anadromous salmon, although consistent differences in growth performance were not observed during most of the 1 st year of development. Anadromous salmon grew more rapidly than nonanadromous salmon in the spring months during the smolting period. Distinct differences were noted between groups in seasonal levels of body silvering, gill Na + –K + ATPase activity, and size and number of gill chloride cells. Most male nonanadromous salmon matured as "post-smolts," whereas maturation was not observed among female nonanadromous nor among either sex in the anadromous group. Differences between anadromous and nonanadromous salmon were not observed in seasonal levels of body moisture, plasma Na + and Cl − , condition factor, or salinity tolerance. Differences noted between groups are probably genetic in nature and suggest that the two forms of salmon in Gambo River represent separate breeding populations. |
format |
Article in Journal/Newspaper |
author |
Birt, Tim P. Green, John M. Davidson, William S. |
spellingShingle |
Birt, Tim P. Green, John M. Davidson, William S. Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
author_facet |
Birt, Tim P. Green, John M. Davidson, William S. |
author_sort |
Birt, Tim P. |
title |
Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
title_short |
Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
title_full |
Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
title_fullStr |
Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
title_full_unstemmed |
Contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous Atlantic salmon, Salmo salar |
title_sort |
contrasts in development and smolting of genetically distinct sympatric anadromous and nonanadromous atlantic salmon, salmo salar |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/z91-289 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-289 |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Canadian Journal of Zoology volume 69, issue 8, page 2075-2084 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z91-289 |
container_title |
Canadian Journal of Zoology |
container_volume |
69 |
container_issue |
8 |
container_start_page |
2075 |
op_container_end_page |
2084 |
_version_ |
1810432328066924544 |