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Table 2 Total number of fish using catches (reference value) and the robot

From: Mobile sailing robot for automatic estimation of fish density and monitoring water quality

Couting method/Name of the pond A B C
Number of fish – routine sampling 548 171 226
Number of fish – sonar counting 502 182 245
The relative volume of the reservoir analyzed with sonar 11.5% 9.6% 12.5%
  1. Symbols for particular ponds correspond to the Table 1.