An international conference in Nagasaki failed to reach an agreement on expanding bluefin tuna catch quotas on July 14 [1].
The stalemate leaves Japanese fishermen in a precarious position as record-breaking tuna populations surge, forcing crews to release fish back into the ocean to avoid violating strict national limits.
The resource level of bluefin tuna has seen a massive recovery, growing from 12,000 t in 2010 to approximately 144,000 t by 2022 [1]. This abundance led to record catches in early 2026, which caused Japan to hit its national quota limit prematurely [1]. In areas such as Inen-cho in Kyoto Prefecture and parts of Toyama, the abundance has become a logistical burden for local fleets [1], [2].
Mexico, a voting member at the conference, opposed any increase in the catch quota, preventing the consensus required for a policy change [1]. The deadlock has sparked frustration among Japanese officials and the fishing industry. Fukuda Kō, a Senior Administrative Officer at the Fisheries Agency, said the inability to reach an agreement was due to the unreasonable response of one country, Mexico [1].
For the fishermen, the situation is described as a crisis. One fisherman said the current state of affairs is a disaster [2]. The abundance is further evidenced by a recreational fishing boom, where some anglers have reported catching tuna weighing over 300 kg in about two minutes [3].
Despite these sightings and the high volume of fish in coastal waters, the legal limits remain fixed. Because the international body failed to expand the quota, Japanese vessels must continue to adhere to the existing caps, meaning any tuna caught beyond the limit must be returned to the sea to remain compliant with international law [1].
“The inability to reach an agreement was due to the unreasonable response of one country, Mexico.”
The conflict highlights a tension between ecological recovery and economic utility. While the surge in bluefin tuna populations from 12,000 t to 144,000 t represents a conservation success, the rigid nature of international quotas prevents the fishing industry from capitalizing on this growth. The deadlock suggests that geopolitical disagreements over resource management can override biological data, leaving local economies to suffer despite a thriving natural resource.
