Petr Císař and Dinara Bekkozhayeva visited the laboratory Wavelab, University of Salzburg on 9.7.2020. The aim of the visit was the discussion of joint cross border project proposal preparation for the call CEUS - Central European Science Partnership. The project proposal preparation is the next step of joint research of the individual fish identification using the fish appearance performed in the frame of TNA AQUAEXCEL2020 project. The project proposal will be focused on the adaptation of developed methods for fish identification under the real conditions of fish cultivation.