How to tuna fish: constraint, convergence, and integration in the neurocranium of pelagiarian fishes

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dc.citation.firstpage1277
dc.citation.issueNumber6
dc.citation.journalTitleEvolution
dc.citation.lastpage1288
dc.citation.volumeNumber77
dc.contributor.authorKnapp, Andrew
dc.contributor.authorRangel-de Lázaro, Gizéh
dc.contributor.authorFriedman, Matt
dc.contributor.authorJohanson, Zerina
dc.contributor.authorEvans, Kory M
dc.contributor.authorGiles, Sam
dc.contributor.authorBeckett, Hermione T
dc.contributor.authorGoswami, Anjali
dc.date.accessioned2023-07-21T16:14:00Z
dc.date.available2023-07-21T16:14:00Z
dc.date.issued2023
dc.description.abstractMorphological evolution of the vertebrate skull has been explored across a wide range of tetrapod clades using geometric morphometrics, but the application of these methods to teleost fishes, accounting for roughly half of all vertebrate species, has been limited. Here we present the results of a study investigating 3D morphological evolution of the neurocranium across 114 species of Pelagiaria, a diverse clade of open-ocean teleost fishes that includes tuna and mackerel. Despite showing high shape disparity overall, taxa from all families fall into three distinct morphological clusters. Convergence in shape within clusters is high, and phylogenetic signal in shape data is significant but low. Neurocranium shape is significantly correlated with body elongation and significantly but weakly correlated with size. Diet and habitat depth are weakly correlated with shape, and nonsignificant after accounting for phylogeny. Evolutionary integration in the neurocranium is high, suggesting that convergence in skull shape and the evolution of extreme morphologies are associated with the correlated evolution of neurocranial elements. These results suggest that shape evolution in the pelagiarian neurocranium reflects the extremes in elongation found in body shape but is constrained along relatively few axes of variation, resulting in repeated evolution toward a restricted range of morphologies.
dc.identifier.citationKnapp, Andrew, Rangel-de Lázaro, Gizéh, Friedman, Matt, et al.. "How to tuna fish: constraint, convergence, and integration in the neurocranium of pelagiarian fishes." <i>Evolution,</i> 77, no. 6 (2023) Oxford University Press: 1277-1288. https://doi.org/10.1093/evolut/qpad056.
dc.identifier.digitalqpad056
dc.identifier.doihttps://doi.org/10.1093/evolut/qpad056
dc.identifier.urihttps://hdl.handle.net/1911/115008
dc.language.isoeng
dc.publisherOxford University Press
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleHow to tuna fish: constraint, convergence, and integration in the neurocranium of pelagiarian fishes
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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