Size-related effects and the influence of metabolic traits and morphology on swimming performance in fish
dc.contributor.author
dc.date.accessioned
2020-11-30T06:36:27Z
dc.date.available
2020-11-30T06:36:27Z
dc.date.issued
2020-03-18
dc.identifier.issn
1674-5507
dc.identifier.uri
dc.description.abstract
Energy metabolism fuels swimming and other biological processes. We compared the swimming performance and energy metabolism within and across eight freshwater fish species. Using swim tunnel respirometers, we measured the standard metabolic rate (SMR) and maximum metabolic rate (MMR) and calculated the critical swimming speed (Ucrit). We accounted for body size, metabolic traits, and some morphometric ratios in an effort to understand the extent and underlying causes of variation. Body mass was largely the best predictor of swimming capacity and metabolic traits within species. Moreover, we found that predictive models using total length or SMR, in addition to body mass, significantly increased the explained variation of Ucrit and MMR in certain fish species. These predictive models also underlined that, once body mass has been accounted for, Ucrit can be independently affected by total length or MMR. This study exemplifies the utility of multiple regression models to assess within-species variability. At interspecific level, our results showed that variation in Ucrit can partly be explained by the variation in the interrelated traits of MMR, fineness, and muscle ratios. Among the species studied, bleak Alburnus alburnus performed best in terms of swimming performance and efficiency. By contrast, pumpkinseed Lepomis gibbosus showed very poor swimming performance, but attained lower mass-specific cost of transport (MCOT) than some rheophilic species, possibly reflecting a cost reduction strategy to compensate for hydrodynamic disadvantages. In conclusion, this study provides insight into the key factors influencing the swimming performance of fish at both intra- and interspecific levels
dc.description.sponsorship
This research was supported by the Spanish Ministry of Science, Innovation
and Universities (projects CGL2013-43822-R and CGL2016-80820-R, AEI/
FEDER/EU) and the Government of Catalonia (ref. 2017 SGR 548). F.R.-G.
was benefitted from a predoctoral fellowship from the University of Girona
(IFUdG17)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press (OUP)
dc.relation
info:eu-repo/grantAgreement/MINECO//CGL2013-43822-R/ES/HACIA UN USO SOSTENIBLE DE LOS ECOSISTEMAS FLUVIALES MEDITERRANEOS: EFECTOS DIRECTOS E INDIRECTOS DE LA ALTERACION HIDROLOGICA EN PECES/
MINECO/PE 2016-2019/CGL2016-80820-R
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1093/cz/zoaa013
dc.relation.ispartof
© Current Zoology, 2020, vol. 66, núm. 5, p. 493-503
dc.relation.ispartofseries
Articles publicats (D-CCAA)
dc.rights
Attribution-NonCommercial 4.0 International
dc.rights.uri
dc.subject
dc.title
Size-related effects and the influence of metabolic traits and morphology on swimming performance in fish
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
031245
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.ProjectAcronym
dc.identifier.eissn
2396-9814