Staff members harvest fish at the "Genghai No 1" marine ranch complex in Yantai, Shandong province on Oct 30. [Photo/VCG]

Staff members celebrate a large catch of cultured spotted parrotfish at the "Genghai No 1" marine ranch complex on Oct 30. The ranch is expected to produce a total of 4,000 kilograms of spotted parrotfish this year. [Photo/VCG]

"Genghai No 1" serves as a multifunctional intelligent ecological marine ranch platform for fishing, recreation, and scientific and technological research and development. [Photo/VCG]

Yantai currently operates 30 provincial-level marine ranches which serve as fish farms covering an area of 70,000 hectares. [Photo/VCG]