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dc.contributor.author
Assis, Ivan O.
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da Silva, Victor E. L.
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Souto Vieira, Daniele
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Lozano, Alfredo P.
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Volpedo, Alejandra
dc.contributor.author
Fabré, Nídia N.
dc.date.available
2021-10-01T18:34:10Z
dc.date.issued
2020-03-02
dc.identifier.citation
Assis, Ivan O.; da Silva, Victor E. L.; Souto Vieira, Daniele; Lozano, Alfredo P.; Volpedo, Alejandra; et al.; Ecomorphological patterns in otoliths of tropical fishes: assessing trophic groups and depth strata preference by shape; Springer; Environmental Biology of Fishes; 103; 4; 2-3-2020; 349-361
dc.identifier.issn
0378-1909
dc.identifier.uri
http://hdl.handle.net/11336/142283
dc.description.abstract
The morphology and morphometry of otoliths have emerged as powerful indicators of ecological characteristics of fishes. However, shape descriptors that can accurately predict well-documented functions played by species in tropical ecosystems are either restricted to a few groups or poorly known. Therefore, we evaluated the power of two otolith shape descriptors (ecomorphological indexes and Fourier harmonics) in discriminating trophic and depth strata preference groups of tropical fish species. Differences in otolith shape of ecological groups were visualized by linear discriminant analysis (LDA), and tested by a jack-knife cross-validation method and permutational multivariate analysis of variance (PERMANOVA) for both methods. Visually and statistically, both descriptors were good predictors of trophic groups and depth preference categories (PERMANOVA, p < 0.05). Overall jack-knifed classification success between both descriptors were very similar, with harmonics correctly classifying 90.38% of assigned trophic groups and 75.96% of given depth preference categories, against 82% and 56.25% of ecological indexes, respectively. Our results suggest that Fourier descriptors and ecomorphological indexes of otoliths should be used as functional traits in future studies, as otolith shape provides a wider range of ecological information regarding feeding habitat, mobility, substrate association and water column use.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ECOLOGICAL INDICATORS
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FEEDING HABIT
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FUNCTIONAL DIVERSITY
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SAGITTAE
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SURROGATE
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Pesca
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Ecomorphological patterns in otoliths of tropical fishes: assessing trophic groups and depth strata preference by shape
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-08-25T19:45:26Z
dc.journal.volume
103
dc.journal.number
4
dc.journal.pagination
349-361
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Assis, Ivan O.. Universidade Federal de Alagoas; Brasil
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Fil: da Silva, Victor E. L.. Universidade Federal de Alagoas; Brasil
dc.description.fil
Fil: Souto Vieira, Daniele. Universidade Federal de Alagoas; Brasil
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Fil: Lozano, Alfredo P.. Universidade Federal de Alagoas; Brasil
dc.description.fil
Fil: Volpedo, Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Unidad Ejecutora de Investigaciones en Producción Animal. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Unidad Ejecutora de Investigaciones en Producción Animal; Argentina
dc.description.fil
Fil: Fabré, Nídia N.. Universidade Federal de Alagoas; Brasil
dc.journal.title
Environmental Biology of Fishes
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s10641-020-00961-0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10641-020-00961-0
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