Setting a precautionary catch limit for Antarctic krill

Hewitt, Roger P.; Watkins, Jon L.; Naganobu, Mikio; Tshernyshkov, Pavel; Brierley, Andrew S.; Demer, David A.; Kasatkina, Svetlana; Takao, Yoshimi; Goss, Cathy; Malyshko, Alexander; Brandon, Mark A.; Kawaguchi, So; Siegel, Volker; Trathan, Philip N. ORCID: https://orcid.org/0000-0001-6673-9930; Emery, Jennifer H.; Everson, Inigo; Miller, Denzil G.M.. 2002 Setting a precautionary catch limit for Antarctic krill. Oceanography, 15 (3). 26-33. 10.5670/oceanog.2002.12

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Abstract/Summary

A revised precautionary catch limit for Antarctic krill (Euphausia superba) in the Scotia Sea of 4 million tons was recently adopted by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). The limit was based on a total biomass of 44.3 million tons, as estimated from an acoustic and net survey of krill across the Scotia Sea sector of the Southern Ocean, and a harvest rate of 9.1%, as determined from an analysis of the risks of exceeding defined conservation criteria. We caution, however, that before the fishery can expand to the 4-million-ton level it will be necessary to establish mechanisms to avoid concentration of fishing effort, particularly in proximity to colonies of land-breeding krill predators, and to consider the effects of krill immigrating into the region from multiple sources.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.5670/oceanog.2002.12
Programmes:	BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Dynamics and Management of Ocean Ecosystems
ISSN:	1042-8275
Additional Information. Not used in RCUK Gateway to Research.:	Copyright held by the Oceanography Society.
NORA Subject Terms:	Marine Sciences Ecology and Environment
Date made live:	15 Nov 2011 14:41 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/13401

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