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    Acoustic survey design to estimate krill biomass in Subareas 48.1, 48.2 and 48.3

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    Hewitt, R.P., Watters, G.
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    The Scientific Committee has requested advice on the feasibility of conducting a synoptic survey of krill biomass in Statistical Area 48. Example calculations are presented for estimating the amount of survey effort required to achieve a target level of precision using a stratified random sample design and results from the FIBEX and AMLR surveys. These calculations suggest that approximately 1.25 ship-months of survey effort can provide an estimate of krill biomass in Subareas 48.1, 48. 2 and 48.3 with a CV of 20%.