A worker harvests brine shrimp which is quality feed in aquaculture in the Salt Lake in Yuncheng, north China's Shanxi Province, July 6, 2018. (Xinhua/Cao Yang)

A worker harvests brine shrimp which is quality feed in aquaculture in the Salt Lake in Yuncheng, north China's Shanxi Province, July 6, 2018. (Xinhua/Cao Yang)

Two workers harvest brine shrimp which is quality feed in aquaculture in the Salt Lake in Yuncheng, north China's Shanxi Province, July 6, 2018. (Xinhua/Cao Yang)

A worker harvests brine shrimp which is quality feed in aquaculture in the Salt Lake in Yuncheng, north China's Shanxi Province, July 6, 2018. (Xinhua/Cao Yang)

A worker harvests brine shrimp which is quality feed in aquaculture in the Salt Lake in Yuncheng, north China's Shanxi Province, July 6, 2018. (Xinhua/Cao Yang)