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Comparison between micro‐ and macro‐structure readings in the age estimations of Cape hake
Author(s) -
Gordoa A.,
Raventóas N.,
Dealie F.
Publication year - 2001
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2001.tb00182.x
Subject(s) - hake , merluccius merluccius , biology , juvenile , merluccius , fishery , otolith , cape , zoology , ecology , fish <actinopterygii> , geography , archaeology
By counting otolith daily increments juvenile Cape hake Merluccius capensis were found to grow faster than European hake Merluccius merluccius . The mean frequency of translucent zones in juveniles 130–240 mm L T were higher (×3·2) than the annual frequency, although their mean duration was shorter (1 month) than a season. Comparison between micro‐ and macro‐structure readings showed that the latter tended to overestimate the age of juvenile hake, with 1 year old hake being overestimated by 18% in individuals of 160 and 210 mm L T .