Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks
We measured postsmolt growth patterns from scales of Atlantic salmon postsmolts captured in the Labrador Sea and adult returns from stocks at the southern end of the range of salmon in North America. Because Labrador Sea postsmolts are believed to represent the juvenile nursery for the entire stock...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2000
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Online Access: | http://dx.doi.org/10.1139/f00-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-069 |
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crcansciencepubl:10.1139/f00-069 2023-12-17T10:27:20+01:00 Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks Friedland, Kevin D Reddin, David G 2000 http://dx.doi.org/10.1139/f00-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-069 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue 6, page 1181-1189 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2000 crcansciencepubl https://doi.org/10.1139/f00-069 2023-11-19T13:38:44Z We measured postsmolt growth patterns from scales of Atlantic salmon postsmolts captured in the Labrador Sea and adult returns from stocks at the southern end of the range of salmon in North America. Because Labrador Sea postsmolts are believed to represent the juvenile nursery for the entire stock complex, the growth variation for southern stocks may yield insights on the time scale of stock mixing during the postsmolt year. Circuli spacing patterns were extracted from the scales of 1525 salmon for 3 smolt years. For 2 of the 3 years, growth trajectories for fish from the southern stocks intersected the trajectories for Labrador Sea postsmolts after 4-5 circuli pairs. The time that it takes to deposit a circulus during the spring and summer seasons suggests that distribution patterns for regional groups begin to overlap or stocks begin to experience similar environmental conditions by June or July of the postsmolt year, or 1 to 2 months after their migration to sea. In some years, however, it would appear that this mixing does not occur until fall. These data provide the first indication of the time scale of events during the postsmolt year that regional influences may be acting on stocks to produce synchronous recruitment. Article in Journal/Newspaper Atlantic salmon Labrador Sea Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 57 6 1181 1189 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Friedland, Kevin D Reddin, David G Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We measured postsmolt growth patterns from scales of Atlantic salmon postsmolts captured in the Labrador Sea and adult returns from stocks at the southern end of the range of salmon in North America. Because Labrador Sea postsmolts are believed to represent the juvenile nursery for the entire stock complex, the growth variation for southern stocks may yield insights on the time scale of stock mixing during the postsmolt year. Circuli spacing patterns were extracted from the scales of 1525 salmon for 3 smolt years. For 2 of the 3 years, growth trajectories for fish from the southern stocks intersected the trajectories for Labrador Sea postsmolts after 4-5 circuli pairs. The time that it takes to deposit a circulus during the spring and summer seasons suggests that distribution patterns for regional groups begin to overlap or stocks begin to experience similar environmental conditions by June or July of the postsmolt year, or 1 to 2 months after their migration to sea. In some years, however, it would appear that this mixing does not occur until fall. These data provide the first indication of the time scale of events during the postsmolt year that regional influences may be acting on stocks to produce synchronous recruitment. |
format |
Article in Journal/Newspaper |
author |
Friedland, Kevin D Reddin, David G |
author_facet |
Friedland, Kevin D Reddin, David G |
author_sort |
Friedland, Kevin D |
title |
Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
title_short |
Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
title_full |
Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
title_fullStr |
Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
title_full_unstemmed |
Growth patterns of Labrador Sea Atlantic salmon postsmolts and the temporal scale of recruitment synchrony for North American salmon stocks |
title_sort |
growth patterns of labrador sea atlantic salmon postsmolts and the temporal scale of recruitment synchrony for north american salmon stocks |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/f00-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-069 |
genre |
Atlantic salmon Labrador Sea |
genre_facet |
Atlantic salmon Labrador Sea |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue 6, page 1181-1189 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f00-069 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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57 |
container_issue |
6 |
container_start_page |
1181 |
op_container_end_page |
1189 |
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1785579178399105024 |