Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River
Growth and sea survival rates decreased with increasing smolt age, with survival being 12, 6, and 3% for 3+, 4+, and 5+ smolt, respectively. All spawning fish were grilse, which suggests that older smolt became large salmon and were thus more vulnerable to the commercial fishery. A density-dependent...
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1978
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crcansciencepubl:10.1139/f78-009 2023-12-17T10:27:15+01:00 Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River Chadwick, E. M. P. Porter, T. R. Downton, P. 1978 http://dx.doi.org/10.1139/f78-009 http://www.nrcresearchpress.com/doi/pdf/10.1139/f78-009 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 35, issue 1, page 60-68 ISSN 0015-296X General Medicine journal-article 1978 crcansciencepubl https://doi.org/10.1139/f78-009 2023-11-19T13:39:02Z Growth and sea survival rates decreased with increasing smolt age, with survival being 12, 6, and 3% for 3+, 4+, and 5+ smolt, respectively. All spawning fish were grilse, which suggests that older smolt became large salmon and were thus more vulnerable to the commercial fishery. A density-dependent relationship was observed for 3+ smolt in their 1st yr of growth, but not for older smolt; younger smolt probably spend their juvenile life in a more productive but space-limiting part of the river. Variation between river-system environments may be responsible for the opposing results of studies on Atlantic salmon (Salmo salar) life history. Key words: Salmo salar, growth, sea survival, density dependence, first-year growth, age at smoltification Article in Journal/Newspaper Atlantic salmon Newfoundland Salmo salar Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 35 1 60 68 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Chadwick, E. M. P. Porter, T. R. Downton, P. Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
topic_facet |
General Medicine |
description |
Growth and sea survival rates decreased with increasing smolt age, with survival being 12, 6, and 3% for 3+, 4+, and 5+ smolt, respectively. All spawning fish were grilse, which suggests that older smolt became large salmon and were thus more vulnerable to the commercial fishery. A density-dependent relationship was observed for 3+ smolt in their 1st yr of growth, but not for older smolt; younger smolt probably spend their juvenile life in a more productive but space-limiting part of the river. Variation between river-system environments may be responsible for the opposing results of studies on Atlantic salmon (Salmo salar) life history. Key words: Salmo salar, growth, sea survival, density dependence, first-year growth, age at smoltification |
format |
Article in Journal/Newspaper |
author |
Chadwick, E. M. P. Porter, T. R. Downton, P. |
author_facet |
Chadwick, E. M. P. Porter, T. R. Downton, P. |
author_sort |
Chadwick, E. M. P. |
title |
Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
title_short |
Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
title_full |
Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
title_fullStr |
Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
title_full_unstemmed |
Analysis of Growth of Atlantic Salmon ( Salmo salar ) in a Small Newfoundland River |
title_sort |
analysis of growth of atlantic salmon ( salmo salar ) in a small newfoundland river |
publisher |
Canadian Science Publishing |
publishDate |
1978 |
url |
http://dx.doi.org/10.1139/f78-009 http://www.nrcresearchpress.com/doi/pdf/10.1139/f78-009 |
genre |
Atlantic salmon Newfoundland Salmo salar |
genre_facet |
Atlantic salmon Newfoundland Salmo salar |
op_source |
Journal of the Fisheries Research Board of Canada volume 35, issue 1, page 60-68 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f78-009 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
35 |
container_issue |
1 |
container_start_page |
60 |
op_container_end_page |
68 |
_version_ |
1785579039326470144 |