Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)

The morphology and morphometry of lapillus otoliths were studied in bottom frequenters, intermediate and benthonic fishes. The shape, margins and type of sulcus of 3 groups of otoliths from 19 species were analyzed: group 1 (bottom frequenters, 11 spp), group 2 (intermediate, 5 spp) and group 3 (ben...

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Autores principales: Volpedo, A.V., Fuchs, D.V.
Formato: JOUR
Materias:
Ecomorphology
Morphometry
Paranoplatense fish
South America
Utricular otolith
Pisces
Siluriformes
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01657836_v102_n1-2_p160_Volpedo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01657836_v102_n1-2_p160_Volpedo
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spelling todo:paper_01657836_v102_n1-2_p160_Volpedo2023-10-03T15:03:05Z Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America) Volpedo, A.V. Fuchs, D.V. Ecomorphology Morphometry Paranoplatense fish South America Utricular otolith Pisces Siluriformes The morphology and morphometry of lapillus otoliths were studied in bottom frequenters, intermediate and benthonic fishes. The shape, margins and type of sulcus of 3 groups of otoliths from 19 species were analyzed: group 1 (bottom frequenters, 11 spp), group 2 (intermediate, 5 spp) and group 3 (benthonic, 3 spp). The indices EL (maximum width of the lapillus (WOL)/maximum length of the lapillus (LOL) %) and S (sulcus area/otolith area %) were calculated for each species. The lapilli of bottom frequenters and intermediate groups showed, in their ventral face, similar morphological features, high shape variability (oblong shape, elongated shape and quadrangular shape) and a sulcus surface that represents 16-34% of otolith surface. The lapilli of the benthonic group are globosal or rounded with a sulcus surface that represents less than 12% of otolith surface. Statistical analyses showed significant differences in the EL and S indices between the benthonic group and the other two groups, but there were no differences between the otoliths of the bottom frequenters and intermediate groups. EL and S values could be used to characterize the lapilli of the paranoplatense fish and could be considered a useful tool for fish ecology studies. Fil:Volpedo, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fuchs, D.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01657836_v102_n1-2_p160_Volpedo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ecomorphology
Morphometry
Paranoplatense fish
South America
Utricular otolith
Pisces
Siluriformes
spellingShingle Ecomorphology
Morphometry
Paranoplatense fish
South America
Utricular otolith
Pisces
Siluriformes
Volpedo, A.V.
Fuchs, D.V.
Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
topic_facet Ecomorphology
Morphometry
Paranoplatense fish
South America
Utricular otolith
Pisces
Siluriformes
description The morphology and morphometry of lapillus otoliths were studied in bottom frequenters, intermediate and benthonic fishes. The shape, margins and type of sulcus of 3 groups of otoliths from 19 species were analyzed: group 1 (bottom frequenters, 11 spp), group 2 (intermediate, 5 spp) and group 3 (benthonic, 3 spp). The indices EL (maximum width of the lapillus (WOL)/maximum length of the lapillus (LOL) %) and S (sulcus area/otolith area %) were calculated for each species. The lapilli of bottom frequenters and intermediate groups showed, in their ventral face, similar morphological features, high shape variability (oblong shape, elongated shape and quadrangular shape) and a sulcus surface that represents 16-34% of otolith surface. The lapilli of the benthonic group are globosal or rounded with a sulcus surface that represents less than 12% of otolith surface. Statistical analyses showed significant differences in the EL and S indices between the benthonic group and the other two groups, but there were no differences between the otoliths of the bottom frequenters and intermediate groups. EL and S values could be used to characterize the lapilli of the paranoplatense fish and could be considered a useful tool for fish ecology studies.
format JOUR
author Volpedo, A.V.
Fuchs, D.V.
author_facet Volpedo, A.V.
Fuchs, D.V.
author_sort Volpedo, A.V.
title Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
title_short Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
title_full Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
title_fullStr Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
title_full_unstemmed Ecomorphological patterns of the lapilli of Paranoplatense Siluriforms (South America)
title_sort ecomorphological patterns of the lapilli of paranoplatense siluriforms (south america)
url http://hdl.handle.net/20.500.12110/paper_01657836_v102_n1-2_p160_Volpedo
work_keys_str_mv AT volpedoav ecomorphologicalpatternsofthelapilliofparanoplatensesiluriformssouthamerica
AT fuchsdv ecomorphologicalpatternsofthelapilliofparanoplatensesiluriformssouthamerica
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