Workers catch Chinese mitten crabs from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

A worker shows Chinese mitten crabs caught from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

Workers sort Chinese mitten crabs caught from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

A worker shows Chinese mitten crabs caught from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

Workers catch Chinese mitten crabs from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

A customer buys Chinese mitten crabs caught from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

Workers catch Chinese mitten crabs from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)

Workers carry Chinese mitten crabs caught from Junshan Lake in Jinxian County of Nanchang, east China's Jiangxi Province, Nov. 6, 2018. Local fishery workers are busy catching Chinese mitten crabs in Junshan Lake during their best fishing season. The total volume of crabs caught in the lake is estimated to reach 2,200 tonnes in 2018. The Chinese mitten crabs of Junshan Lake are a geographical indication (GI) product of China, and are sold to Japan, South Korea, Singapore and other international markets. (Xinhua/Peng Zhaozhi)