Growth of European hake (Merluccius merluccius) in the Gulf of Lions based on conventional tagging

Type Article
Date 2010-01
Language English
Author(s) Mellon-Duval Capucine1, De Pontual HeleneORCID2, Metral LuisaORCID1, Quemener Loic3
Affiliation(s) 1 : IFREMER, Ctr Rech Halieut Mediterraneenne & Trop, Lab Ressources Halieut, F-34203 Sete, France.
2 : IFREMER, Dept Sci & Technol Halieut, F-29280 Plouzane, France.
3 : IFREMER, Lab Technol Syst Instrumentaux, F-29280 Plouzane, France.
Source Ices Journal Of Marine Science (1054-3139) (Oxford University Press), 2010-01 , Vol. 67 , N. 1 , P. 62-70
DOI 10.1093/icesjms/fsp215
WOS© Times Cited 37
Keyword(s) age estimation, European hake, growth, Mediterranean, tagging
Abstract Growth of European hake was estimated from the results of a conventional tagging study in the Gulf of Lions, the first tagging experiment to have been undertaken on the species in Mediterranean waters. In all, 4277 hake 15–40 cm long were tagged and released on the inshore fishing grounds during spring 2006. The overall recapture rate was 6.5% and times-at-liberty ranged from 1 to 717 d. Growth rate in hake varied with size and sex. The estimated growth parameter (von Bertalanffy k) was estimated as double previously published values based on size frequency distribution in the area. Compared with recent growth parameters derived from the tagging experiments in the Bay of Biscay, k was estimated to be slightly lower in the Gulf of Lions. With this faster growth, hake would mature earlier than previously thought: at age 2 for both sexes, instead of at age 3 or 4 as currently accepted for the Mediterranean. Growth rate by sex decreased to a similar level once fish had attained sexual maturity.
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