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  • WG-FSA-18/54 Rev. 1 - Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 by Australia and SpainSupprimer

Krill consumption by crabeater seals in CCAMLR Divisions 58.4.1 and 58.4.2

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Numéro du document:
WG-EMM-16/66
Auteur(s):
C. Southwell, J. Forcada, L. Emmerson, A. Constable, S. Kawaguchi and P. Trathan
Soumis par:
Colin Southwell (Australia)
Approuvé par:
Doro Forck (Secrétariat de la CCAMLR)
Point(s) de l'ordre du jour
WG-EMM-16 - 2.4.2 - Predator consumption
Résumé

As a contribution to the work program of WG-EMM-STAPP to estimate krill consumption by predators, this paper presents estimates of krill consumption by crabeater seals off East Antarctica between 64ºE-150ºE, which includes all of Division 58.4.1 and part of Division 58.4.2. Krill consumption by crabeater seals in this region in 1999/00 was estimated to be 3.8 (95% CI 2.4-6.0) million tonnes per year. This represents approximately 20% of the krill biomass estimated from acoustic surveys.