Though Japan is famed for its fisheries, in recent years, factors such as overfishing and climate change have seen catches fall to just a third of their 1980s peak. Mizukami Yosuke is the operator of a unique app that supports fisheries workers by using AI to analyze the historical movements of veteran fishermen and predict the most fertile fishing grounds. And now, the platform is also being leveraged to collect fisheries data vital to the sustainable future management of fragile fish stocks.