A joint fish resource monitoring project featuring the participation of Chinese and Russian scientists has been launched on a Sino-Russian cross-border lake, according to authorities from the Xingkai Lake Nature Reserve in northeast China's Heilongjiang Province.

Xingkai Lake. [File photo]

Six new species of fish have been discovered living in Xingkai Lake, according to Shang Erzeng, the deputy head of the reserve.

Located on the northeast Sino-Russian border, Xingkai Lake is well-known for its abundant biodiversity and complex ecosystem. It is a major habitat for migratory birds in the Asia-Pacific region.

Chinese and Russian scientists reached an agreement to continue studying the lake's aquatic life in order to enhance environmental protection efforts, according to Yu Hongxian, director of the wetland science department of Northeast Forestry University.