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Natural mortality rate in the mackerel icefish (Champscephalus gunnari) around South Georgia

Everson, I.. 1998 Natural mortality rate in the mackerel icefish (Champscephalus gunnari) around South Georgia. CCAMLR Science, 5. 245-257.

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Abstract/Summary

Information on natural mortality rates of the mackerel icefish (Champsocephalus gunnari) from the period prior to known large-scale commercial harvesting is discussed. After careful consideration of the data and available methods, several errors are noted in earlier estimates. Unfortunately, because none of the datasets are sufficiently comprehensive, it is impossible to unequivocally provide an estimate that is unaffected by confounding effects mainly due to recruitment variation, but also possibly due to age-dependent mortality and commercial fishing.

Item Type: Publication - Article
Programmes: BAS Programmes > Pre 2000 programme
Additional Keywords: mackerel icefish, natural mortality, Antarctic, CCAMLR
Date made live: 25 Nov 2013 14:44 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/504000

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