A fishing boat is seen on the Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province, July 24, 2020. (Xinhua/Xie Jianfei)

Fishermen return from work on the Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province, July 24, 2020. (Xinhua/Xie Jianfei)

Aerial photo taken on July 24, 2020 shows fishermen working on the Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province. (Xinhua/Xie Jianfei)

Aerial photo taken on July 24, 2020 shows the view of Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province. (Xinhua/Xie Jianfei)

Aerial photo taken on July 24, 2020 shows fishermen working on the Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province. (Xinhua/Xie Jianfei)

Fishermen return from work on the Dalijia Lake in Fuyuan, northeast China's Heilongjiang Province, July 24, 2020. (Xinhua/Xie Jianfei)