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The use of computer aided digital signal processing now permits the target strength in a single resolution cell of a scanning sonar to be measured with a high degree of accuracy.The basic factors influencing the design of such a system are described and the application of this technique to the study of fish target strengths and the distribution of fish density within a shoal discussed.Various forms of data presentation have been developed and are illustrated in relationship to'the estimation of biomass.
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Cook et al. (2024) studied this question.
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