Morfología de Lapillus de siluriformes parano-platenses

The otoliths of fishes are complex polycrystalline, composed mainly by calcium carbonate. The lapillus is usually the most conspicuous otolith in Siluriform fishes. Studies of siluriforms’ otoliths are scarce at world level. In this paper are studied the lapilli of Ageneiosus inermis, Auchenipterus...

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Detalles Bibliográficos
Autores principales: Fuchs, D. V., Volpedo, Alejandra V.
Formato: Articulo
Lenguaje:Español
Publicado: 2009
Materias:
Ciencias Naturales
otolitos
Peces
lapillus
siluriformes
peces Parano-Platenses
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/68197
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-68197
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
otolitos
Peces
lapillus
siluriformes
peces Parano-Platenses
spellingShingle Ciencias Naturales
otolitos
Peces
lapillus
siluriformes
peces Parano-Platenses
Fuchs, D. V.
Volpedo, Alejandra V.
Morfología de Lapillus de siluriformes parano-platenses
topic_facet Ciencias Naturales
otolitos
Peces
lapillus
siluriformes
peces Parano-Platenses
description The otoliths of fishes are complex polycrystalline, composed mainly by calcium carbonate. The lapillus is usually the most conspicuous otolith in Siluriform fishes. Studies of siluriforms’ otoliths are scarce at world level. In this paper are studied the lapilli of Ageneiosus inermis, Auchenipterus nuchalis, Callichthys callichthys, Corydoras paleatus, Pterodoras granulosus, Rhinodoras dorbignyi, Pimelodella gracilis, Pimelodella laticeps, Rhamdia quelen, Hypostomus commersoni, Loricariichthys anus, Paraloricaria vetula, Iheringichthys labrosus, Luciopimelodus pati, Parapimelodus valenciennis, Pimelodus albicans, Pimelodus argenteus, Pimelodus maculatus and Sorubim lima. Fish standard length was registered in millimeters. The otoliths were extracted, described and photographed, and a dichotomical key was made. The results showed that lapilli otoliths of the studied species have a great morphological variability; this could be associated to the diversity and ecological plasticity of the siluriforms group. The morphological features that can be used to differentiate the lapilli of the studied species are: otolith shape, sulcus features, cisure, internal face depression and lapillus edges. The values of index EL (AOL/LOL)x100 were different in each family of siluriforms. The species of Loricariidae present the highest values of EL (>80%), the species of Doradidae present the lowest values (53-55%) and the other species present intermediate values.
format Articulo
Articulo
author Fuchs, D. V.
Volpedo, Alejandra V.
author_facet Fuchs, D. V.
Volpedo, Alejandra V.
author_sort Fuchs, D. V.
title Morfología de Lapillus de siluriformes parano-platenses
title_short Morfología de Lapillus de siluriformes parano-platenses
title_full Morfología de Lapillus de siluriformes parano-platenses
title_fullStr Morfología de Lapillus de siluriformes parano-platenses
title_full_unstemmed Morfología de Lapillus de siluriformes parano-platenses
title_sort morfología de lapillus de siluriformes parano-platenses
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/68197
work_keys_str_mv AT fuchsdv morfologiadelapillusdesiluriformesparanoplatenses
AT volpedoalejandrav morfologiadelapillusdesiluriformesparanoplatenses
bdutipo_str Repositorios
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