“the number of environments It appears to have decreased somewhat, and the population size in large bodies of water like Lake Biwa has decreased since 2005, but the distribution does not appear to have decreased,” Kawamura notes. “I have no hope.”
A solution may not be achieved

Finally, technology can offer a solution. Ongoing research led by Hiroyuki Okamoto, a fish geneticist, is focusing on “gene-induced inhibition in invasive populations” through the Crispr-Cas9 gene-editing tool. Okamoto’s team sequenced the bass genome and recently produced the first generation of male fish that can carry a female-specific sterile gene to the wild bass population, eliminating their ability to produce eggs. The program is in its sixth year in the laboratory.