There are two stocks for Japanese jack mackerel, the Pacific stock and the Tsushima warm current stock. The Pacific stock is overfished.
The impacts of this harvest method are negligible on the endangered, threatened, and protected (ETP) species and benthic habitats.
This fishery is managed by Japan’s Ministry of Agriculture, Forestry and Fisheries (MAFF) and the Fisheries Agency. Although this fishery have comprehensive habitat, ecosystem and productivity maintenance plan, improvements in transparency and stakeholder participation are needed. Overall management is partly effective.