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Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis)
Studies of life-history variation across a species range are crucial for ecological understanding and successful conservation. Here, we examined the growth and age of Wels catfish (Silurus glanis) in Sweden, which represent the northernmost populations in Europe. A total of 1183 individuals were cap...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9110724/ https://www.ncbi.nlm.nih.gov/pubmed/35577886 http://dx.doi.org/10.1038/s41598-022-12165-w |
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author | Bergström, Kristofer Nordahl, Oscar Söderling, Peter Koch-Schmidt, Per Borger, Tobias Tibblin, Petter Larsson, Per |
author_facet | Bergström, Kristofer Nordahl, Oscar Söderling, Peter Koch-Schmidt, Per Borger, Tobias Tibblin, Petter Larsson, Per |
author_sort | Bergström, Kristofer |
collection | PubMed |
description | Studies of life-history variation across a species range are crucial for ecological understanding and successful conservation. Here, we examined the growth and age of Wels catfish (Silurus glanis) in Sweden, which represent the northernmost populations in Europe. A total of 1183 individuals were captured, marked and released between 2006 and 2020. Mark-recapture data from 162 individuals (size range: 13–195 cm) were used to estimate von Bertalanffy growth curve parameters which revealed very slow growth rates compared to catfish within the core distribution area (central Europe). The fitted von Bertalanffy growth curve predicted a 150 cm catfish to be around 40 years old, while the largest recaptured individual (length 195 cm) was estimated to be 70 (95% CI 50–112) years old. This was substantially older than the previously documented maximum age of a catfish. The weight at length relationships in these northern peripheral populations were similar to those documented for catfish in central Europe indicating that resources did not constrain growth. This indicates that the slow growth and exceptional high age in the northern catfish populations are the result of lower temperatures and/or local adaptations. |
format | Online Article Text |
id | pubmed-9110724 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-91107242022-05-18 Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) Bergström, Kristofer Nordahl, Oscar Söderling, Peter Koch-Schmidt, Per Borger, Tobias Tibblin, Petter Larsson, Per Sci Rep Article Studies of life-history variation across a species range are crucial for ecological understanding and successful conservation. Here, we examined the growth and age of Wels catfish (Silurus glanis) in Sweden, which represent the northernmost populations in Europe. A total of 1183 individuals were captured, marked and released between 2006 and 2020. Mark-recapture data from 162 individuals (size range: 13–195 cm) were used to estimate von Bertalanffy growth curve parameters which revealed very slow growth rates compared to catfish within the core distribution area (central Europe). The fitted von Bertalanffy growth curve predicted a 150 cm catfish to be around 40 years old, while the largest recaptured individual (length 195 cm) was estimated to be 70 (95% CI 50–112) years old. This was substantially older than the previously documented maximum age of a catfish. The weight at length relationships in these northern peripheral populations were similar to those documented for catfish in central Europe indicating that resources did not constrain growth. This indicates that the slow growth and exceptional high age in the northern catfish populations are the result of lower temperatures and/or local adaptations. Nature Publishing Group UK 2022-05-16 /pmc/articles/PMC9110724/ /pubmed/35577886 http://dx.doi.org/10.1038/s41598-022-12165-w Text en © The Author(s) 2022, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Bergström, Kristofer Nordahl, Oscar Söderling, Peter Koch-Schmidt, Per Borger, Tobias Tibblin, Petter Larsson, Per Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title | Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title_full | Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title_fullStr | Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title_full_unstemmed | Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title_short | Exceptional longevity in northern peripheral populations of Wels catfish (Silurus glanis) |
title_sort | exceptional longevity in northern peripheral populations of wels catfish (silurus glanis) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9110724/ https://www.ncbi.nlm.nih.gov/pubmed/35577886 http://dx.doi.org/10.1038/s41598-022-12165-w |
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