El uso de otolitos y huesos de la cabeza para la identificación de dos especies del género Merluccius, en estudios de predador-presa

A comparative osteological analysis of 6 bones and the sagitta otolith in Merluccius hubbsi and M. australis, two species that live in Southwest Atlantic, has been carried out. The objective was to contribute to identifying these two species as prey in the diet studies, and further description of these bony elements for a better taxonomic identification. Fresh bones disarticulation techniques were used. Potentially diagnostic features were observed for discrimination of species in the following elements: urohyal, maxilla, premaxilla, dentary, quadrate, hyomandibular, and the sagitta otolith.

Saved in:
Bibliographic Details
Main Authors: Delpiani,Sergio Matías, González-Castro,Mariano, Díaz de Astarloa,Juan Martín
Format: Digital revista
Language:Spanish / Castilian
Published: Universidad de Valparaíso. Facultad de Ciencias del Mar 2012
Online Access:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000200018
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A comparative osteological analysis of 6 bones and the sagitta otolith in Merluccius hubbsi and M. australis, two species that live in Southwest Atlantic, has been carried out. The objective was to contribute to identifying these two species as prey in the diet studies, and further description of these bony elements for a better taxonomic identification. Fresh bones disarticulation techniques were used. Potentially diagnostic features were observed for discrimination of species in the following elements: urohyal, maxilla, premaxilla, dentary, quadrate, hyomandibular, and the sagitta otolith.