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|Titre: ||Analysis of Tag Recoveries in Mauritius (1988-1993) and Presentation of Codification Procedure in Use|
|Auteur(s): ||Cayré, P.|
Lim Shung, C.
|mot-clé ASFA: ||Tagging|
|Date de publication: ||1995|
|Résumé: ||Tagging is considered an excellent tool for estimating the importance of interactions and
competition between fisheries as well as to study tuna stocks and migrations. The Regional
Tuna Project of the Indian Ocean Commission (IOC) conducted five tagging cruises in the
western Indian Ocean, during which 955 fishes were tagged. Out of the total number tagged
15 were recaptured. Tuna tagging in the Indian Ocean was also undertaken by the Indo-
Pacific Tuna Programme and by the Japanese National Research Institute of Far Seas
Fisheries. 39 tuna marked by these organisations were recovered in Mauritius. Analysis of
data collected from the tag recoveries provide some preliminary estimates of growth rate and
migration of tuna.
Tagging is the most direct method to estimate growth,
stock structure, schooling behaviour and migrations; it also
provides essential information for estimating mortality
(natural and fishing) and fisheries interactions and thus is
pertinent for defining proper management of a stock.|
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