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Figure 1

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Cruise track (blue curves) for the acoustic survey and observed fish schools (purple blobs). The axes indicate longitude and latitude in decimal degrees. The values in the legend are the nautical area scattering coefficient sA [nmi−1] [33]. Note that the cruise tracks do not overlap completely. Each school could be crossed straight over in one leg and on a side in the next, even if the schools did not move.

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