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Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii)

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Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii)

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dc.contributor.author Ferrón, Humberto G.
dc.contributor.author Paredes-Aliaga, M. V.
dc.contributor.author Martínez Pérez, Carlos
dc.contributor.author Botella Sevilla, Hector
dc.date.accessioned 2023-03-02T08:11:07Z
dc.date.available 2023-03-02T08:11:07Z
dc.date.issued 2018
dc.identifier.citation FERRÓN, H. G. PAREDES-ALIAGA, M. V. MARTÍNEZ-PÉREZ, C. BOTELLA, H. 2018 Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii) Contributions to Zoology 87 3 187 196
dc.identifier.uri https://hdl.handle.net/10550/85589
dc.description.abstract Galeomorph sharks constitute the most taxonomically and ecologically diverse superorder of living selachians. Despite comprising several typically deep-water taxa, no bioluminescent species have been reported in this group so far. Interestingly, the study of shark squamation has been revealed in recent years to be a good proxy for inferring some ecological aspects of poorly known species. In particular, the high morphological specificity of the dermal denticles and the squamation patterns of all currently-known bioluminescent sharks could constitute a potential tool for predicting bioluminescence in both fossil and living taxa. Following this idea, we provide the first evidence supporting the possible existence of bioluminescence among galeomorph sharks by means of the quantitative study of Apristurus ampliceps squamation pattern. Classical morphometric analysis and multivariate statistical procedures have allowed us to determine that A. ampliceps squamation, composed mainly of bristle-shaped dermal denticles, is highly convergent with that of the bioluminescent shark Etmopterus spinax. The ecology of A. ampliceps, being a species that exclusively inhabits aphotic waters, is in agreement with such a morphofunctional interpretation, but finding photophores is imperative to confirm this prediction.
dc.language.iso eng
dc.relation.ispartof Contributions to Zoology, 2018, vol. 87, num. 3, p. 187-196
dc.subject Biologia marina
dc.title Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii)
dc.type journal article es_ES
dc.date.updated 2023-03-02T08:11:08Z
dc.identifier.idgrec 130088
dc.rights.accessRights open access es_ES

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