Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers
Found on the southernmost edge of the species’ natural distribution, North Iberian Atlantic salmon populations are extremely vulnerable to environmental change. In the last few decades, associated with global indicators of climate change, these populations have been experiencing a sharp decline. Eff...
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ftdoajarticles:oai:doaj.org/article:9d9431d7381c4583a387e08de5819bf6 2023-05-15T15:30:10+02:00 Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers Horreo J.L. De La Hoz J. Machado-Schiaffino G. Pola I.G. Garcia-Vazquez E. 2012-01-01T00:00:00Z https://doi.org/10.1051/kmae/2011079 https://doaj.org/article/9d9431d7381c4583a387e08de5819bf6 EN eng EDP Sciences http://dx.doi.org/10.1051/kmae/2011079 https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2011079 https://doaj.org/article/9d9431d7381c4583a387e08de5819bf6 Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 402, p 23 (2012) stocking restoration connectivity re-colonization Salmo salar Aquaculture. Fisheries. Angling SH1-691 article 2012 ftdoajarticles https://doi.org/10.1051/kmae/2011079 2023-01-08T01:34:40Z Found on the southernmost edge of the species’ natural distribution, North Iberian Atlantic salmon populations are extremely vulnerable to environmental change. In the last few decades, associated with global indicators of climate change, these populations have been experiencing a sharp decline. Efforts have been made to address their decline, principally through stocking, supportive breeding and habitat restoration (enabling accessibility to upstream spawning sites). The efficiency of each of these measures has been different. In this study, focused on the river Sella containing one of the largest Spanish populations as a case study, we demonstrate that accessibility and habitat improvement have been the most efficient measures for increasing population size. Supportive breeding accounts for some level of population increase, but generally lower than 10%. Finally, our review suggests that stocking should be discarded as a restoration method because it encompasses threats to natural variation of Atlantic salmon and also the sympatric brown trout. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Knowledge and Management of Aquatic Ecosystems 402 23 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
topic |
stocking restoration connectivity re-colonization Salmo salar Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
stocking restoration connectivity re-colonization Salmo salar Aquaculture. Fisheries. Angling SH1-691 Horreo J.L. De La Hoz J. Machado-Schiaffino G. Pola I.G. Garcia-Vazquez E. Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
topic_facet |
stocking restoration connectivity re-colonization Salmo salar Aquaculture. Fisheries. Angling SH1-691 |
description |
Found on the southernmost edge of the species’ natural distribution, North Iberian Atlantic salmon populations are extremely vulnerable to environmental change. In the last few decades, associated with global indicators of climate change, these populations have been experiencing a sharp decline. Efforts have been made to address their decline, principally through stocking, supportive breeding and habitat restoration (enabling accessibility to upstream spawning sites). The efficiency of each of these measures has been different. In this study, focused on the river Sella containing one of the largest Spanish populations as a case study, we demonstrate that accessibility and habitat improvement have been the most efficient measures for increasing population size. Supportive breeding accounts for some level of population increase, but generally lower than 10%. Finally, our review suggests that stocking should be discarded as a restoration method because it encompasses threats to natural variation of Atlantic salmon and also the sympatric brown trout. |
format |
Article in Journal/Newspaper |
author |
Horreo J.L. De La Hoz J. Machado-Schiaffino G. Pola I.G. Garcia-Vazquez E. |
author_facet |
Horreo J.L. De La Hoz J. Machado-Schiaffino G. Pola I.G. Garcia-Vazquez E. |
author_sort |
Horreo J.L. |
title |
Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
title_short |
Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
title_full |
Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
title_fullStr |
Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
title_full_unstemmed |
Restoration and enhancement of Atlantic salmon populations: what we have learned from North Iberian rivers |
title_sort |
restoration and enhancement of atlantic salmon populations: what we have learned from north iberian rivers |
publisher |
EDP Sciences |
publishDate |
2012 |
url |
https://doi.org/10.1051/kmae/2011079 https://doaj.org/article/9d9431d7381c4583a387e08de5819bf6 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 402, p 23 (2012) |
op_relation |
http://dx.doi.org/10.1051/kmae/2011079 https://doaj.org/toc/1961-9502 1961-9502 doi:10.1051/kmae/2011079 https://doaj.org/article/9d9431d7381c4583a387e08de5819bf6 |
op_doi |
https://doi.org/10.1051/kmae/2011079 |
container_title |
Knowledge and Management of Aquatic Ecosystems |
container_issue |
402 |
container_start_page |
23 |
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1766360616872706048 |