Warming winters threaten peripheral Arctic charr populations of Europe
Abstract As the global climate warms, the fate of lacustrine fish is of huge concern, especially given their sensitivity as ectotherms to changes in water temperature. The Arctic charr ( Salvelinus alpinus L.) is a salmonid with a Holarctic distribution, with peripheral populations persisting at tem...
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Springer Science and Business Media LLC
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Online Access: | http://dx.doi.org/10.1007/s10584-020-02887-z https://link.springer.com/content/pdf/10.1007/s10584-020-02887-z.pdf https://link.springer.com/article/10.1007/s10584-020-02887-z/fulltext.html |
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crspringernat:10.1007/s10584-020-02887-z 2023-05-15T14:30:06+02:00 Warming winters threaten peripheral Arctic charr populations of Europe Kelly, Seán Moore, Tadhg N. de Eyto, Elvira Dillane, Mary Goulon, Chloé Guillard, Jean Lasne, Emilien McGinnity, Phil Poole, Russell Winfield, Ian J. Woolway, R. Iestyn Jennings, Eleanor Marine Institute WATExR 2020 http://dx.doi.org/10.1007/s10584-020-02887-z https://link.springer.com/content/pdf/10.1007/s10584-020-02887-z.pdf https://link.springer.com/article/10.1007/s10584-020-02887-z/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Climatic Change volume 163, issue 1, page 599-618 ISSN 0165-0009 1573-1480 Atmospheric Science Global and Planetary Change journal-article 2020 crspringernat https://doi.org/10.1007/s10584-020-02887-z 2022-01-04T12:27:33Z Abstract As the global climate warms, the fate of lacustrine fish is of huge concern, especially given their sensitivity as ectotherms to changes in water temperature. The Arctic charr ( Salvelinus alpinus L.) is a salmonid with a Holarctic distribution, with peripheral populations persisting at temperate latitudes, where it is found only in sufficiently cold, deep lakes. Thus, warmer temperatures in these habitats particularly during early life stages could have catastrophic consequences on population dynamics. Here, we combined lake temperature observations, a 1-D hydrodynamic model, and a multi-decadal climate reanalysis to show coherence in warming winter water temperatures in four European charr lakes near the southernmost limit of the species’ distribution. Current maximum and mean winter temperatures are on average ~ 1 °C warmer compared to early the 1980s, and temperatures of 8.5 °C, adverse for high charr egg survival, have frequently been exceeded in recent winters. Simulations of winter lake temperatures toward century-end showed that these warming trends will continue, with further increases of 3–4 °C projected. An additional 324 total accumulated degree-days during winter is projected on average across lakes, which could impair egg quality and viability. We suggest that the perpetuating winter warming trends shown here will imperil the future status of these lakes as charr refugia and generally do not augur well for the fate of coldwater-adapted lake fish in a warming climate. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Springer Nature (via Crossref) Arctic Winter Lake ENVELOPE(-112.918,-112.918,64.484,64.484) Climatic Change 163 1 599 618 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Atmospheric Science Global and Planetary Change |
spellingShingle |
Atmospheric Science Global and Planetary Change Kelly, Seán Moore, Tadhg N. de Eyto, Elvira Dillane, Mary Goulon, Chloé Guillard, Jean Lasne, Emilien McGinnity, Phil Poole, Russell Winfield, Ian J. Woolway, R. Iestyn Jennings, Eleanor Warming winters threaten peripheral Arctic charr populations of Europe |
topic_facet |
Atmospheric Science Global and Planetary Change |
description |
Abstract As the global climate warms, the fate of lacustrine fish is of huge concern, especially given their sensitivity as ectotherms to changes in water temperature. The Arctic charr ( Salvelinus alpinus L.) is a salmonid with a Holarctic distribution, with peripheral populations persisting at temperate latitudes, where it is found only in sufficiently cold, deep lakes. Thus, warmer temperatures in these habitats particularly during early life stages could have catastrophic consequences on population dynamics. Here, we combined lake temperature observations, a 1-D hydrodynamic model, and a multi-decadal climate reanalysis to show coherence in warming winter water temperatures in four European charr lakes near the southernmost limit of the species’ distribution. Current maximum and mean winter temperatures are on average ~ 1 °C warmer compared to early the 1980s, and temperatures of 8.5 °C, adverse for high charr egg survival, have frequently been exceeded in recent winters. Simulations of winter lake temperatures toward century-end showed that these warming trends will continue, with further increases of 3–4 °C projected. An additional 324 total accumulated degree-days during winter is projected on average across lakes, which could impair egg quality and viability. We suggest that the perpetuating winter warming trends shown here will imperil the future status of these lakes as charr refugia and generally do not augur well for the fate of coldwater-adapted lake fish in a warming climate. |
author2 |
Marine Institute WATExR |
format |
Article in Journal/Newspaper |
author |
Kelly, Seán Moore, Tadhg N. de Eyto, Elvira Dillane, Mary Goulon, Chloé Guillard, Jean Lasne, Emilien McGinnity, Phil Poole, Russell Winfield, Ian J. Woolway, R. Iestyn Jennings, Eleanor |
author_facet |
Kelly, Seán Moore, Tadhg N. de Eyto, Elvira Dillane, Mary Goulon, Chloé Guillard, Jean Lasne, Emilien McGinnity, Phil Poole, Russell Winfield, Ian J. Woolway, R. Iestyn Jennings, Eleanor |
author_sort |
Kelly, Seán |
title |
Warming winters threaten peripheral Arctic charr populations of Europe |
title_short |
Warming winters threaten peripheral Arctic charr populations of Europe |
title_full |
Warming winters threaten peripheral Arctic charr populations of Europe |
title_fullStr |
Warming winters threaten peripheral Arctic charr populations of Europe |
title_full_unstemmed |
Warming winters threaten peripheral Arctic charr populations of Europe |
title_sort |
warming winters threaten peripheral arctic charr populations of europe |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1007/s10584-020-02887-z https://link.springer.com/content/pdf/10.1007/s10584-020-02887-z.pdf https://link.springer.com/article/10.1007/s10584-020-02887-z/fulltext.html |
long_lat |
ENVELOPE(-112.918,-112.918,64.484,64.484) |
geographic |
Arctic Winter Lake |
geographic_facet |
Arctic Winter Lake |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Climatic Change volume 163, issue 1, page 599-618 ISSN 0165-0009 1573-1480 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s10584-020-02887-z |
container_title |
Climatic Change |
container_volume |
163 |
container_issue |
1 |
container_start_page |
599 |
op_container_end_page |
618 |
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1766304019326697472 |