An article appeared in Tokyo Shimbun on January 24, 2020 that reported on the use of genome editing to exterminate invasive fish. The research is being pushed forward as a study by the National Research Institute of Aquaculture.

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Consequently, Consumers Union of Japan wrote to the research center on January 29 to express our concern and to ask a number of questions. We consider that this type of genome editing can have a large impact on related species, the natural environment, as well as the entire ecosystem. This impact due to the release of genome-edited fish must be analysed very carefully. On February 17 we received a reply from the research center.