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A brief history of toothfish tagging in the CAMLR Convention Area and discussions leading up to WS-TAG-2023

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Numéro du document:
WS-TAG-2023/02
Auteur(s):
C.D. Jones
Soumis par:
Christopher Jones (États-Unis d'Amérique)
Approuvé par:
George Watters
Accessibility Categories
Request permission to release each time (RP)
Point(s) de l'ordre du jour
Résumé

Toothfish have been tagged in CCAMLR fisheries since the late 1990’s, and information from the mark-recapture program has been used to estimate movement, growth and mortality rates, and abundance. Tagging of toothfish from fishing vessels in new and exploratory fisheries started in 2000/01, became mandatory in 2003/04, and continues today. This paper provides a short history of toothfish tagging in the CAMLR Convention Area, and includes a summary of trends in toothfish tag releases, recaptures and tagging rates, tagging requirements, tag types, improvements to the tagging program, a case-control study of tagging performance, and a summary of discussions on tagging practices and issues identified leading to WS-TAG-23. Finally, recommendations outstanding that would improve the tagging program, and challenges for best practice protocols are identified.