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Growth determination of tropical marine fishes by means of otolith interpretation and length frequency analysis

Published online by Cambridge University Press:  15 October 1989

Beatriz Morales-Nin
Beatriz Morales-Nin*
Affiliation:
Instituto de Ciencias del Mar, Paseo nacional S/N, Barcelona 08003, Spain
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Abstract

Age and growth of four tropical marine fish species: Lethrinus choerorynchus, Lutjanus kasmira, Nemipterus furcosus and Scomberomorus brasiliensis, were determined by means of otolith interpretation and length-frequency analysis. The results showed the presence of annual rings in the studied species. These rings were consistently interpreted and their annual periodicity tested by means of various methods. The annuli are composed of distinct daily increments, of different thickness depending of the otolith area. Growth determination by means of length-frequency analysis was problematic in some species due to the lack of clear modal classes (in the length distributions). The joint analysis of the age and the length-frequency data improved the estimation of growth parameters, and allowed the selection of results that were biologically acceptable.

Keywords

Growthtropical fishotolith microstructurelength frequency analysisCroissancepoissons tropicauxmicrostructure de l'otholitheanalyse des fréquences de tailles
Type
Research Article
Information
Aquatic Living Resources , Volume 2 , Issue 4 , October 1989 , pp. 241 - 253
Copyright
© IFREMER-Gauthier-Villars, 1989

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