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Development of a fine-scale model of land-based predator foraging demands in the Antarctic

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Document Number:
WG-Joint-94/08
Author(s):
D.J. Agnew and G. Phegan (Secretariat)
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Abstract

The CCAMLR Secretariat has been requested to provide annual calculations of the catch of krill within the critical period-distance of land-based predators in Subareas 48.1 and 48.2 (100km from colonies, December - March). This index of the overlap of predators and the fishery is unsuitable for a number of reasons. An alternative method of calculating an index of fishery-predator interaction is developed, which is based on a detailed model of the supposed functional interaction between these two utilisers of the krill resource.