Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species
dc.contributor.author
dc.date.accessioned
2020-11-26T08:22:31Z
dc.date.available
2020-11-26T08:22:31Z
dc.date.issued
2020-11-03
dc.identifier.issn
2045-2322
dc.identifier.uri
dc.description.abstract
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 (Ucrit) 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 Ucrit, using linear models and random forests. We compiled in total 204 studies testing Ucrit 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 Ucrit 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 Ucrit 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 Ucrit 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
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Nature Publishing Group
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1038/s41598-020-75974-x
dc.relation.ispartof
Scientific Reports, 2020, vol. 10, núm. art.núm.18947, p. 12
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Articles publicats (D-CCAA)
dc.rights
Reconeixement 4.0 Internacional
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dc.source
Cano Barbacil, Carlos Radinger, Johannes Argudo, María Rubio Gracia, Francesc Vila i Gispert, Anna García-Berthou, Emili 2020 Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species Scientific Reports 10 art.núm.18947 12
dc.subject
dc.title
Key factors explaining critical swimming speed in freshwater fish: a review and statistical analysis for Iberian species
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
032192
dc.type.peerreviewed
peer-reviewed
dc.identifier.eissn
2045-2322