INIDEP Inf. Téc. 10: 1-13, 1996

INIDEP Inf. Téc. 10: 1-13, 1996

Descripción del otolito de merluza de cola (Macruronus magellanicus, Pisces: Merlucciidae) y su utilización en la determinación de la edad.

Autor: Analía R. Giussi.
Contribución INIDEP 922


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Citar como:
Giussi, A.R. 1996. Descripción del otolito de merluza de cola (Macruronus magellanicus, Pisces: Merlucciidae) y su utilización en la determinación de la edad. INIDEP Informe Técnico 10, 1-13. Disponible en: http://hdl.handle.net/1834/7045.

Summary

Description of long tail hake (Macruronus magellanicus, Pisces: Merlucciidae) otolith and its use in age determination. In this paper a detailed otolith description of Macruronus magellanicus is given and a criterion of age determination by direct observation is established. It was verified that only one annual ring appears in the otoliths which includes a fast-growing zone (opaque ring) formed between December and April and a slow growing zone (Hyaline ring) formed during the resto of the year. According to the knowledge on the spawning period and the month when the hyaline ring is deposited, the species birthdate was established to be July 1st.