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Figur
Fra rapporten:
Feasibility study on the use of scientific multibeam sonar to characterize the Atlantic Bluefin Tuna spawning stock
Figure 3. Example of school number 11 (table 3) seen from above (a), from the side (b) and with the extracted school data marked in panels c and d. The data have been pre-processed and thresholded to -60 dB.