Photo shows the scenery of frozen Ulunggur Lake in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2020. Every year, fishermen here follow the traditional winter fishing method by putting down a giant net under the ice for fishing on the frozon Ulunggur Lake, one of China's ten largest freshwater lakes. (Xinhua/Sadat)

Fishermen drag fishing net during winter fishing on frozen Ulunggur Lake in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2020. Every year, fishermen here follow the traditional winter fishing method by putting down a giant net under the ice for fishing on the frozon Ulunggur Lake, one of China's ten largest freshwater lakes. (Xinhua/Sadat)

Fishermen sort fishes during winter fishing on frozen Ulunggur Lake in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2020. Every year, fishermen here follow the traditional winter fishing method by putting down a giant net under the ice for fishing on the frozon Ulunggur Lake, one of China's ten largest freshwater lakes. (Xinhua/Sadat)

Fishermen chisel a hole on the frozen Ulunggur Lake in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2020. Every year, fishermen here follow the traditional winter fishing method by putting down a giant net under the ice for fishing on the frozon Ulunggur Lake, one of China's ten largest freshwater lakes. (Xinhua/Sadat)

Photo shows fishes caught by fishermen during winter fishing on frozen Ulunggur Lake in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2020. Every year, fishermen here follow the traditional winter fishing method by putting down a giant net under the ice for fishing on the frozon Ulunggur Lake, one of China's ten largest freshwater lakes. (Xinhua/Sadat)