Data collected during the krill target strength experiment [J. Acoust. Soc. Am. 87, 16-24( 1990)] are examined in the light of a recent zooplankton scattering model where the elongatedanimals are modeled as deformed finite cylinders [J. Acoust. Soc. Am. 86, 691-705 (1989)].Exercise of the model under assumption of an orientation distribution allows absolutepredictions of target strength to be made at each frequency. By requiring that the differencebetween predicted and measured target strengths be a minimum in a least-squares sense, it ispossible to infer the orientation distribution. This useful biological quantity was not obtainablein the previous analysis which involved the sphere scattering model.
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