Zhao Zelun rows his boat offshore Zhongba Island in Chongqing, southwest China, Jan. 7, 2020. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island.Photo:Xinhua

Aerial photo taken on Jan. 7, 2020 shows Zhao Zelun's home on Zhongba Island in Chongqing, southwest China. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island. Photo:Xinhua

Zhao Zelun checks the growth of sugar canes at his farm in Zhongba Island in Chongqing, southwest China, Jan. 7, 2020. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island. Photo:Xinhua

Zhao Zelun anchors the boat in Zhongba Island in Chongqing, southwest China, Jan. 7, 2020. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island. Photo:Xinhua

Zhao Zelun arranges the vegetable field's fence made of old fishing net in Chongqing, southwest China, Jan. 7, 2020. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island. Photo:Xinhua

Fishery administrative boats cruise to inspect the implementation of fishing ban in the Yangtze River on Jan. 8, 2020. China on Jan. 1 began a 10-year fishing ban on key areas of the Yangtze River to protect biodiversity in the country's longest river. Photo:Xinhua

Zhao Zelun and his father sort old fishing net in Zhongba Island in Chongqing, southwest China, Jan. 7, 2020. From Jan. 1, 2020, China began a 10-year fishing ban in key areas of the Yangtze River to protect biodiversity. Zhao, finishing his 30 years' career as fisherman, started a farm hostel business in Zhongba Island. Photo:Xinhua