Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland
Migration is an important ecological trait that allows animals to exploit resources in different habitats, obtaining extra energy for growth and reproduction. The phenology (or timing) of migration is a highly heritable trait, but is also controlled by environmental factors. Numerous studies have re...
Published in: | Frontiers in Ecology and Evolution |
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Online Access: | http://dx.doi.org/10.3389/fevo.2022.915854 https://www.frontiersin.org/articles/10.3389/fevo.2022.915854/full |
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crfrontiers:10.3389/fevo.2022.915854 2024-05-12T07:53:00+00:00 Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland de Eyto, Elvira Kelly, Seán Rogan, Ger French, Andrew Cooney, Joe Murphy, Michael Nixon, Pat Hughes, Pat Sweeney, David McGinnity, Phil Dillane, Mary Poole, Russell 2022 http://dx.doi.org/10.3389/fevo.2022.915854 https://www.frontiersin.org/articles/10.3389/fevo.2022.915854/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Ecology and Evolution volume 10 ISSN 2296-701X Ecology Ecology, Evolution, Behavior and Systematics journal-article 2022 crfrontiers https://doi.org/10.3389/fevo.2022.915854 2024-04-18T07:57:48Z Migration is an important ecological trait that allows animals to exploit resources in different habitats, obtaining extra energy for growth and reproduction. The phenology (or timing) of migration is a highly heritable trait, but is also controlled by environmental factors. Numerous studies have reported the advancement of species life-events with climate change, but the rate and significance of such advancement is likely to be species specific, spatially variable and dependent on interactions with population and ecosystem changes. This is particularly true for diadromous fishes which are sentinels of change in both freshwater and marine domains, and are subject to considerable multiple stressors including overfishing and habitat degradation. Here, we describe trends in the migration phenology of three native Irish migratory fishes over half a century, Atlantic salmon ( Salmo salar ), brown trout ( Salmo trutta ) and European eel ( Anguilla anguilla ). The trends were derived from daily counts of 745,263 fish moving upstream and downstream through the fish traps of the Burrishoole catchment, an internationally important monitoring infrastructure allowing a full census of migrating fish. We found that the start of the seaward migration of eel has advanced by one month since 1970. The commencement of the salmon smolt migration has advanced by one week, although the rest of the migration, and the entirety of the trout smolt run has remained stable. The beginning of the upstream migration of trout to freshwater has advanced by 20 days, while the end of the run is more than one month later than in the 1970’s. The greatest phenological shift has been in the upstream migration of adult salmon, with at least half of migrating fish returning between one and two months earlier from the marine environment compared to the 1970’s. The earlier return of these salmon is coincident with reduced marine survival and decreasing body size, indicating considerable oceanic challenges for this species. Our results demonstrate that ... Article in Journal/Newspaper Anguilla anguilla Atlantic salmon European eel Salmo salar Frontiers (Publisher) Frontiers in Ecology and Evolution 10 |
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Ecology Ecology, Evolution, Behavior and Systematics |
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Ecology Ecology, Evolution, Behavior and Systematics de Eyto, Elvira Kelly, Seán Rogan, Ger French, Andrew Cooney, Joe Murphy, Michael Nixon, Pat Hughes, Pat Sweeney, David McGinnity, Phil Dillane, Mary Poole, Russell Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Migration is an important ecological trait that allows animals to exploit resources in different habitats, obtaining extra energy for growth and reproduction. The phenology (or timing) of migration is a highly heritable trait, but is also controlled by environmental factors. Numerous studies have reported the advancement of species life-events with climate change, but the rate and significance of such advancement is likely to be species specific, spatially variable and dependent on interactions with population and ecosystem changes. This is particularly true for diadromous fishes which are sentinels of change in both freshwater and marine domains, and are subject to considerable multiple stressors including overfishing and habitat degradation. Here, we describe trends in the migration phenology of three native Irish migratory fishes over half a century, Atlantic salmon ( Salmo salar ), brown trout ( Salmo trutta ) and European eel ( Anguilla anguilla ). The trends were derived from daily counts of 745,263 fish moving upstream and downstream through the fish traps of the Burrishoole catchment, an internationally important monitoring infrastructure allowing a full census of migrating fish. We found that the start of the seaward migration of eel has advanced by one month since 1970. The commencement of the salmon smolt migration has advanced by one week, although the rest of the migration, and the entirety of the trout smolt run has remained stable. The beginning of the upstream migration of trout to freshwater has advanced by 20 days, while the end of the run is more than one month later than in the 1970’s. The greatest phenological shift has been in the upstream migration of adult salmon, with at least half of migrating fish returning between one and two months earlier from the marine environment compared to the 1970’s. The earlier return of these salmon is coincident with reduced marine survival and decreasing body size, indicating considerable oceanic challenges for this species. Our results demonstrate that ... |
format |
Article in Journal/Newspaper |
author |
de Eyto, Elvira Kelly, Seán Rogan, Ger French, Andrew Cooney, Joe Murphy, Michael Nixon, Pat Hughes, Pat Sweeney, David McGinnity, Phil Dillane, Mary Poole, Russell |
author_facet |
de Eyto, Elvira Kelly, Seán Rogan, Ger French, Andrew Cooney, Joe Murphy, Michael Nixon, Pat Hughes, Pat Sweeney, David McGinnity, Phil Dillane, Mary Poole, Russell |
author_sort |
de Eyto, Elvira |
title |
Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
title_short |
Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
title_full |
Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
title_fullStr |
Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
title_full_unstemmed |
Decadal Trends in the Migration Phenology of Diadromous Fishes Native to the Burrishoole Catchment, Ireland |
title_sort |
decadal trends in the migration phenology of diadromous fishes native to the burrishoole catchment, ireland |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fevo.2022.915854 https://www.frontiersin.org/articles/10.3389/fevo.2022.915854/full |
genre |
Anguilla anguilla Atlantic salmon European eel Salmo salar |
genre_facet |
Anguilla anguilla Atlantic salmon European eel Salmo salar |
op_source |
Frontiers in Ecology and Evolution volume 10 ISSN 2296-701X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fevo.2022.915854 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
10 |
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1798839879517339648 |