Scientists collected DNA from seawater at 316 sites across Japan;126 fish species farther north

Japan is witnessing a dramatic transformation in its marine ecosystems as rising ocean temperatures prompt fish species to migrate northward. An extensive research effort involving the analysis of water samples has revealed profound implications for local fisheries, economies, and the overall health of marine life. With the introduction of new species, traditional fishing methods may need to evolve, underscoring the crucial role of environmental DNA in monitoring these biodiversity changes.