Fishermen Zhang Kaidi (R) and Li Peiguang catch shrimps on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 22, 2019. (Xinhua/Jiang Wenyao)

KUNMING, Nov. 4, 2019 (Xinhua) -- Located in southwest China's Yunnan Province, Dianchi Lake officially opened for fishing on Oct. 16.

To protect the ecological environment of the lake, only whitebait and small shrimps are allowed to be fished during the 30-day fishing season this year, any other aquatic products harvest are prohibited.

In the late 1980s, Dianchi Lake became murky because of the industrial and domestic waste discharged into it. The central government and Yunnan provincial authorities then implemented a series of measures to restore its lost splendor after decades of severe pollution.

After over 30 years of endeavors, water quality of Dianchi Lake has been improved, which remained to grade IV in the first half of 2019.

Fishermen catch fish on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 23, 2019. (Xinhua/Hu Chao)

Fisherman Li Peiguang catches fish on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 22, 2019. (Xinhua/Hu Chao)

Fisherman Zhang Kaidi catches fish on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 22, 2019. (Xinhua/Jiang Wenyao)

Fisherman Zhang Kaidi pours shrimps he caught into fishing boat on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 23, 2019. (Xinhua/Jiang Wenyao)

Fishermen Zhang Kaidi (R) and Li Peiguang handle fishes and shrimps they caught on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 22, 2019. (Xinhua/Jiang Wenyao)

Fisherman Li Peiguang rows a fishing boat on Dianchi Lake in Kunming, southwest China's Yunnan Province, Oct. 23, 2019. (Xinhua/Hu Chao)■