Article (Scientific journals)
The multifaceted diversification of the sagitta otolith across the fish tree of life
Van Damme, Arthur; Tuset, Victor M.; Frederich, Bruno et al.
2024In Biological Journal of the Linnean Society, 143 (2)
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Keywords :
ray-finned fishes; Actinopterygii; inner ear; otolith; audition; vestibular function; morphology; geometric morphometrics; disparity; evolutionary dynamics
Abstract :
[en] Otoliths of actinopterygians are calcified structures playing a key role in hearing and equilibrium functions. To understand their morphological diversification, we quantified the shape of otoliths in both lateral and dorsal view from 697 and 323 species, respectively, using geometric morphometrics. We then combined form (i.e. size and shape) information with ecological data and phylogenetically informed comparative methods to test our hypotheses. Initially, the exploration of morphospaces revealed that the main variations are related to sulcus acusticus shape, elongation and lateral curvature. We also found strong integration between otolith and sulcus shape, suggesting that they are closely mirroring each other, reinforcing a shape-dependent mechanism crucial for otolith motion relative to its epithelium and validating the functional significance of otolith morphology in auditory and vestibular processes. After revealing that otolith shape and size retained a low phylogenetic signal, we showed that the disparity of otolith size and shape is decoupled from order age and from the level of functional diversity across clades. Finally, some traits in otolith disparity are correlated with their morphological evolutionary rate and the order speciation rate. Overall, we observed that the pattern of diversification of otoliths across the fish tree of life is highly complex and likely to be multifactorial.
Disciplines :
Zoology
Environmental sciences & ecology
Aquatic sciences & oceanology
Author, co-author :
Van Damme, Arthur  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Tuset, Victor M.;  Universidad de Las Palmas de Gran Canaria (ULPGC) > Instituto de Oceanografía y Cambio Global
Frederich, Bruno  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Parmentier, Eric  ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS)
Fatira, Effrosyni;  Universidad de Las Palmas de Gran Canaria (ULPGC) > Instituto de Oceanografía y Cambio Global
Schulz-Mirbach, Tanja;  Ludwig Maximilians Universitaet Muenchen > Department Biologie II
Paiva M. Medeiros, Aline;  Universidade Federal de Paraíba
Betancur-R, Ricardo;  UCSD - University of California, San Diego [US-CA] > Scripps Institution of Oceanography
Lombarte, Antoni;  Institut de Ciències del Mar (ICM-CSIC)
Language :
English
Title :
The multifaceted diversification of the sagitta otolith across the fish tree of life
Original title :
[en] The multifaceted diversification of the sagitta otolith across the fish tree of life
Publication date :
07 October 2024
Journal title :
Biological Journal of the Linnean Society
ISSN :
0024-4066
eISSN :
1095-8312
Publisher :
Oxford University Press, Oxford, United Kingdom
Volume :
143
Issue :
2
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
HE - 101090322 - PLEASE - Impact of climate change on twilight zone fishes during early-stage development
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
La Caixa Foundation
European Union. Marie Skłodowska-Curie Actions
CAPES - Coordenação de Aperfeicoamento de Pessoal de Nível Superior
the Fundação de Apoio à Pesquisa do Estado da Paraíba (Fapesq-PB)
PADI Foundation
NSF - National Science Foundation
Funding text :
This study was supported by CajaCanaria-La Caixa Fundación project 2022CLISA15. A.V.D. was funded by a Research-Fellow grant from the Fonds De La Recherche Scientifique - FNRS of Belgium (grant no. 40001905). E.F. was funded from the HORIZON EUROPE Marie Sklodowska-Curie Actions of the European Union’s research and innovation program (grant agreement no. 101090322 PLEASE). A.P.M.d.M. received scholarship support by the Programa Institucional de Internacionalização (PrInt) of the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brazilian Federal Agency for Support and Evaluation of Graduate Education, Ministry of Education of Brazil), the Fundação de Apoio à Pesquisa do Estado da Paraíba (Fapesq-PB), and the PADI Foundation (application no. 32777). R.B.R. received funding from the U.S. National Science Foundation (NSF DEB-2225130)
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