Aligned with the international frameworks of the Western and Central Pacific Fisheries Commission (WCPFC), this research delivers pivotal scientific management foundations for key economically important fish species, including Pacific bluefin tuna, bigeye tuna, yellowfin tuna, and skipjack tuna. Through rigorous scientific inquiry, we are dedicated to the sustainable conservation of marine resources while fully safeguarding the maximum operational interests of Taiwan’s distant-water fishing fleets.