Core highlight: A new milestone has been etched in the history of China's fishery development—Hainan has achieved large-scale tuna farming for the first time! Recent joyous news came from the farming base in the Lingshui Lian'an Sea area of Hainan Province: after nearly 30 months of meticulous cultivation, the first batch of yellowfin tuna fry that were released have grown into 50-kilogram "big fish," with a total of over 4,000 individuals reaching the commercial fish standard. This not only signifies a significant breakthrough in China's deep-sea farming technology, but also brings high-quality domestic tuna supply to the domestic market, reducing reliance on imports.