International delegates failed to agree on a proposal to increase the catch quota for large Pacific bluefin tuna during a meeting in Nagasaki [1].
The stalemate leaves Japanese fishers unable to keep significant portions of their catch despite a historic recovery in tuna populations. Because the quota remains frozen, some fishers have been forced to release large tuna back into the ocean [1].
The Japanese Fisheries Agency proposed expanding the quota for fish weighing 30 kg or more by 25% [3], [4]. This proposal was aimed at adjusting limits to reflect current biomass levels, but major fishing nations, including the U.S., Canada, and South Korea, did not reach a consensus [1].
Resource levels have seen a dramatic shift in recent years. The Pacific bluefin tuna population once plummeted to a historic low of approximately 12,000 tons [1]. However, that number recovered to about 144,000 tons by 2022 [1].
While the recovery is a biological success, the rigid nature of international catch limits has created a paradox for local industry. Fishers are seeing an abundance of fish that they are legally prohibited from harvesting.
“They are called ‘black diamonds,’ but now they are just ‘pebbles,’” said Mamoru Kadoshima, a fishing labor chief at Daimon Port [1]. “To be honest, they are in the way.”
The meeting, held in mid-July in Nagasaki, highlighted the tension between conservation-led quotas and the economic realities of a rebounding species [1], [5].
““They are called ‘black diamonds,’ but now they are just ‘pebbles.’””
The failure to raise the quota demonstrates a disconnect between the biological recovery of the Pacific bluefin tuna and the diplomatic pace of international resource management. While the population has grown significantly since its low point, the 'quota wall' prevents the industry from capitalizing on this abundance. This may lead to increased friction between Japanese fishing communities and international regulatory bodies if catch limits do not evolve to match the actual biomass in the ocean.
