Feng Yan collects sea cucumber in the sea off the Luming Island in Dalian, northeast China's Liaoning Province, Oct. 21, 2017. Local fishermen were busy harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
Photo taken on Oct. 21, 2017 shows sea cucumbers in the sea off the Luming Island in Dalian, northeast China's Liaoning Province. Local fishermen were busy harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
A diver loads newly-collected sea cucumbers onto a fishing boat in the sea off the Luming Island in Dalian, northeast China's Liaoning Province, Oct. 21, 2017. Local fishermen were busy harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
Fishermen collect sea cucumbers in the sea off the Luming Island in Dalian, northeast China's Liaoning Province, Oct. 21, 2017. Local fishermen were busy harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
A fisherman collects sea cucumber in the sea off the Luming Island in Dalian, northeast China's Liaoning Province, Oct. 21, 2017. Local fishermen were busy harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
Feng Yan (L) and Qiu Gang display newly-caught sea cucumbers in the sea off the Luming Island in Dalian, northeast China's Liaoning Province, Oct. 21, 2017. Local fishermen were busy with harvesting stichopus japonicus, a type of sea cucumber that is well-known for its delicacy and good nutrition. (Xinhua/Piao Feng)
