Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic
Abstract A hierarchical Bayesian life cycle model is presented that considers spatial covariation of marine life history traits of Atlantic salmon ( Salmo salar ) populations in the North Atlantic. The model is based on a collective analysis of the dynamics of 13 stock units ( SU s) from two contine...
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crwiley:10.1111/faf.12345 2024-06-23T07:51:10+00:00 Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic Olmos, Maxime Massiot‐Granier, Félix Prévost, Etienne Chaput, Gérald Bradbury, Ian R Nevoux, Marie Rivot, Etienne Seventh Framework Programme 2018 http://dx.doi.org/10.1111/faf.12345 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffaf.12345 https://onlinelibrary.wiley.com/doi/pdf/10.1111/faf.12345 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/faf.12345 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fish and Fisheries volume 20, issue 2, page 322-342 ISSN 1467-2960 1467-2979 journal-article 2018 crwiley https://doi.org/10.1111/faf.12345 2024-06-13T04:25:09Z Abstract A hierarchical Bayesian life cycle model is presented that considers spatial covariation of marine life history traits of Atlantic salmon ( Salmo salar ) populations in the North Atlantic. The model is based on a collective analysis of the dynamics of 13 stock units ( SU s) from two continental stock groups ( CSG s) in North America and Southern Europe in a single hierarchical model over the period 1971–2014. The model sets up a new assessment framework for Atlantic salmon stocks. It also provides a framework to investigate the drivers of changes in Atlantic salmon population dynamics including disentangling the effects of fisheries from those of environmental factors in a hierarchy of spatial scales. It is used to test the hypothesis of a strong spatial synchrony in marine life history dynamics of Atlantic salmon populations. The trends in two key parameters associated with the early marine phase of the life cycle are estimated: (i) the marine survival during the first summer–autumn spent at sea and (ii) the proportion of fish maturing after the first winter at sea. The results provide evidence of a decline in the marine survival together with an increase in the proportion of fish that mature after the first winter at sea, common to all SU s. Our results show an increased coherence in the covariations of trends in these two marine life history traits related to geographic proximity of SU s which support the hypothesis of a coherent response of geographically proximate Atlantic salmon populations that likely share similar migration routes. Article in Journal/Newspaper Atlantic salmon North Atlantic Salmo salar Wiley Online Library Fish and Fisheries 20 2 322 342 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract A hierarchical Bayesian life cycle model is presented that considers spatial covariation of marine life history traits of Atlantic salmon ( Salmo salar ) populations in the North Atlantic. The model is based on a collective analysis of the dynamics of 13 stock units ( SU s) from two continental stock groups ( CSG s) in North America and Southern Europe in a single hierarchical model over the period 1971–2014. The model sets up a new assessment framework for Atlantic salmon stocks. It also provides a framework to investigate the drivers of changes in Atlantic salmon population dynamics including disentangling the effects of fisheries from those of environmental factors in a hierarchy of spatial scales. It is used to test the hypothesis of a strong spatial synchrony in marine life history dynamics of Atlantic salmon populations. The trends in two key parameters associated with the early marine phase of the life cycle are estimated: (i) the marine survival during the first summer–autumn spent at sea and (ii) the proportion of fish maturing after the first winter at sea. The results provide evidence of a decline in the marine survival together with an increase in the proportion of fish that mature after the first winter at sea, common to all SU s. Our results show an increased coherence in the covariations of trends in these two marine life history traits related to geographic proximity of SU s which support the hypothesis of a coherent response of geographically proximate Atlantic salmon populations that likely share similar migration routes. |
author2 |
Seventh Framework Programme |
format |
Article in Journal/Newspaper |
author |
Olmos, Maxime Massiot‐Granier, Félix Prévost, Etienne Chaput, Gérald Bradbury, Ian R Nevoux, Marie Rivot, Etienne |
spellingShingle |
Olmos, Maxime Massiot‐Granier, Félix Prévost, Etienne Chaput, Gérald Bradbury, Ian R Nevoux, Marie Rivot, Etienne Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
author_facet |
Olmos, Maxime Massiot‐Granier, Félix Prévost, Etienne Chaput, Gérald Bradbury, Ian R Nevoux, Marie Rivot, Etienne |
author_sort |
Olmos, Maxime |
title |
Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
title_short |
Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
title_full |
Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
title_fullStr |
Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
title_full_unstemmed |
Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic |
title_sort |
evidence for spatial coherence in time trends of marine life history traits of atlantic salmon in the north atlantic |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/faf.12345 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffaf.12345 https://onlinelibrary.wiley.com/doi/pdf/10.1111/faf.12345 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/faf.12345 |
genre |
Atlantic salmon North Atlantic Salmo salar |
genre_facet |
Atlantic salmon North Atlantic Salmo salar |
op_source |
Fish and Fisheries volume 20, issue 2, page 322-342 ISSN 1467-2960 1467-2979 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/faf.12345 |
container_title |
Fish and Fisheries |
container_volume |
20 |
container_issue |
2 |
container_start_page |
322 |
op_container_end_page |
342 |
_version_ |
1802642173655515136 |