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Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species
Swimming performance is a key feature that mediates fitness and survival in aquatic animals. Dispersal, habitat selection, predator–prey interactions and reproduction are processes that depend on swimming capabilities. Testing the critical swimming speed (U(crit)) of fish is the most straightforward...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7609642/ https://www.ncbi.nlm.nih.gov/pubmed/33144649 http://dx.doi.org/10.1038/s41598-020-75974-x |
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author | Cano-Barbacil, Carlos Radinger, Johannes Argudo, María Rubio-Gracia, Francesc Vila-Gispert, Anna García-Berthou, Emili |
author_facet | Cano-Barbacil, Carlos Radinger, Johannes Argudo, María Rubio-Gracia, Francesc Vila-Gispert, Anna García-Berthou, Emili |
author_sort | Cano-Barbacil, Carlos |
collection | PubMed |
description | Swimming performance is a key feature that mediates fitness and survival in aquatic animals. Dispersal, habitat selection, predator–prey interactions and reproduction are processes that depend on swimming capabilities. Testing the critical swimming speed (U(crit)) of fish is the most straightforward method to assess their prolonged swimming performance. We analysed the contribution of several predictor variables (total body length, experimental water temperature, time step interval between velocity increments, species identity, taxonomic affiliation, native status, body shape and form factor) in explaining the variation of U(crit), using linear models and random forests. We compiled in total 204 studies testing U(crit) of 35 inland fishes of the Iberian Peninsula, including 17 alien species that are non-native to that region. We found that body length is largely the most important predictor of U(crit) out of the eight tested variables, followed by family, time step interval and species identity. By contrast, form factor, temperature, body shape and native status were less important. Results showed a generally positive relationship between U(crit) and total body length, but regression slopes varied markedly among families and species. By contrast, linear models did not show significant differences between native and alien species. In conclusion, the present study provides a first comprehensive database of U(crit) in Iberian freshwater fish, which can be thus of considerable interest for habitat management and restoration plans. The resulting data represents a sound foundation to assess fish responses to hydrological alteration (e.g. water flow tolerance and dispersal capacities), or to categorize their habitat preferences. |
format | Online Article Text |
id | pubmed-7609642 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-76096422020-11-05 Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species Cano-Barbacil, Carlos Radinger, Johannes Argudo, María Rubio-Gracia, Francesc Vila-Gispert, Anna García-Berthou, Emili Sci Rep Article Swimming performance is a key feature that mediates fitness and survival in aquatic animals. Dispersal, habitat selection, predator–prey interactions and reproduction are processes that depend on swimming capabilities. Testing the critical swimming speed (U(crit)) of fish is the most straightforward method to assess their prolonged swimming performance. We analysed the contribution of several predictor variables (total body length, experimental water temperature, time step interval between velocity increments, species identity, taxonomic affiliation, native status, body shape and form factor) in explaining the variation of U(crit), using linear models and random forests. We compiled in total 204 studies testing U(crit) of 35 inland fishes of the Iberian Peninsula, including 17 alien species that are non-native to that region. We found that body length is largely the most important predictor of U(crit) out of the eight tested variables, followed by family, time step interval and species identity. By contrast, form factor, temperature, body shape and native status were less important. Results showed a generally positive relationship between U(crit) and total body length, but regression slopes varied markedly among families and species. By contrast, linear models did not show significant differences between native and alien species. In conclusion, the present study provides a first comprehensive database of U(crit) in Iberian freshwater fish, which can be thus of considerable interest for habitat management and restoration plans. The resulting data represents a sound foundation to assess fish responses to hydrological alteration (e.g. water flow tolerance and dispersal capacities), or to categorize their habitat preferences. Nature Publishing Group UK 2020-11-03 /pmc/articles/PMC7609642/ /pubmed/33144649 http://dx.doi.org/10.1038/s41598-020-75974-x Text en © The Author(s) 2020 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/. |
spellingShingle | Article Cano-Barbacil, Carlos Radinger, Johannes Argudo, María Rubio-Gracia, Francesc Vila-Gispert, Anna García-Berthou, Emili Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title | Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title_full | Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title_fullStr | Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title_full_unstemmed | Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title_short | Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species |
title_sort | key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for iberian species |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7609642/ https://www.ncbi.nlm.nih.gov/pubmed/33144649 http://dx.doi.org/10.1038/s41598-020-75974-x |
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