The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study
Reduction of freshwater habitat quality due to land use change can have major impacts on diadromous fish. Partitioning this impact from other potential drivers, such as changing marine conditions and climate, is hampered by a lack of long-term data sets. Here, four decades of data were used to asses...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/cjfas-2015-0450 2024-06-23T07:54:56+00:00 The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study de Eyto, Elvira Dalton, Catherine Dillane, Mary Jennings, Eleanor McGinnity, Philip O’Dwyer, Barry Poole, Russell Rogan, Ger Taylor, David 2016 http://dx.doi.org/10.1139/cjfas-2015-0450 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2015-0450 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2015-0450 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 12, page 1759-1769 ISSN 0706-652X 1205-7533 journal-article 2016 crcansciencepubl https://doi.org/10.1139/cjfas-2015-0450 2024-06-13T04:10:51Z Reduction of freshwater habitat quality due to land use change can have major impacts on diadromous fish. Partitioning this impact from other potential drivers, such as changing marine conditions and climate, is hampered by a lack of long-term data sets. Here, four decades of data were used to assess the impact of land use change on Salmo salar and anadromous Salmo trutta in the Burrishoole catchment, Ireland, one of the few index sites for diadromous fish in the North Atlantic. Land use change was found to have no significant impact on the freshwater survival of either salmon or trout. However, climate impacted significantly on the survival of salmon and trout in fresh water, with poor survival in years with wetter, warmer winters, coinciding with positive North Atlantic Oscillation values. Additionally, cold springs were associated with higher survival in trout. The addition of hatchery fish into the salmon spawning cohort coincided with low freshwater survival. Our results highlight the necessity for a broad ecosystem approach in any conservation effort of these species. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 73 12 1759 1769 |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
Reduction of freshwater habitat quality due to land use change can have major impacts on diadromous fish. Partitioning this impact from other potential drivers, such as changing marine conditions and climate, is hampered by a lack of long-term data sets. Here, four decades of data were used to assess the impact of land use change on Salmo salar and anadromous Salmo trutta in the Burrishoole catchment, Ireland, one of the few index sites for diadromous fish in the North Atlantic. Land use change was found to have no significant impact on the freshwater survival of either salmon or trout. However, climate impacted significantly on the survival of salmon and trout in fresh water, with poor survival in years with wetter, warmer winters, coinciding with positive North Atlantic Oscillation values. Additionally, cold springs were associated with higher survival in trout. The addition of hatchery fish into the salmon spawning cohort coincided with low freshwater survival. Our results highlight the necessity for a broad ecosystem approach in any conservation effort of these species. |
format |
Article in Journal/Newspaper |
author |
de Eyto, Elvira Dalton, Catherine Dillane, Mary Jennings, Eleanor McGinnity, Philip O’Dwyer, Barry Poole, Russell Rogan, Ger Taylor, David |
spellingShingle |
de Eyto, Elvira Dalton, Catherine Dillane, Mary Jennings, Eleanor McGinnity, Philip O’Dwyer, Barry Poole, Russell Rogan, Ger Taylor, David The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
author_facet |
de Eyto, Elvira Dalton, Catherine Dillane, Mary Jennings, Eleanor McGinnity, Philip O’Dwyer, Barry Poole, Russell Rogan, Ger Taylor, David |
author_sort |
de Eyto, Elvira |
title |
The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
title_short |
The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
title_full |
The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
title_fullStr |
The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
title_full_unstemmed |
The response of North Atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
title_sort |
response of north atlantic diadromous fish to multiple stressors, including land use change: a multidecadal study |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
http://dx.doi.org/10.1139/cjfas-2015-0450 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2015-0450 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2015-0450 |
genre |
North Atlantic North Atlantic oscillation Salmo salar |
genre_facet |
North Atlantic North Atlantic oscillation Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 73, issue 12, page 1759-1769 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2015-0450 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
73 |
container_issue |
12 |
container_start_page |
1759 |
op_container_end_page |
1769 |
_version_ |
1802647279416377344 |