Pacific bluefin tuna stocks, which have recovered under international catch management, are surging so rapidly that fishing quotas are being filled almost immediately. The stock, which had fallen to 12,000 tonnes in 2010, rebounded to 144,000 tonnes in 2022, and is projected to exceed 200,000 tonnes by 2030 if current measures continue. Japanese fishermen are being forced into mass releases and fishing restrictions, and they worry that a flood of supply on the market will cause prices to collapse and make pole-and-line fishing unprofitable. Moreover, the increase in bluefin tuna, which sit at the top of the marine ecosystem, is leading to a decline in their prey such as mackerel and squid, and some point out that stocks could start declining again. At an international conference underway in Nagasaki, Japan has proposed expanding the catch quota for large fish in the central and western Pacific by 25 percent while reducing the quota for small fish by 6 percent, drawing attention to whether a balance can be struck between resource protection and the fishing industry.