New freshwater fish species discovered in Lishui, Zhejiang, Oujiang small swim bladder

On the morning of November 30, Lishui City, Zhejiang Province promoted biodiversity protection. A press conference was held at the Municipal Administrative Center. At the meeting, it was announced that a new freshwater fish species had been discovered in Lishui City - Oujiang small swim bladder fish [biào jū]. The white paper "Biodiversity Conservation in Lishui" was officially released, which is also the country's first white paper on biodiversity conservation at the prefectural and municipal levels.

Name: Oujiang little turtle

Scientific name: Microphysogobio oujiangensis

Discovery date: 2021

Discovery location: Panxi, Jinyun County

In 2021, investigators from the Nanjing Institute of Environmental Science of the Ministry of Ecology and Environment and the Institute of Zoology of the Chinese Academy of Sciences collected a batch of small swimbladder fish specimens in Panxi, Jinyun County, and found that they were different from other small swimbladder species distributed nearby. After detailed After morphological comparison and molecular phylogenetic analysis, it was determined that this was a new species. Since it is currently known that it is only distributed in the Oujiang River Basin, it was named after Oujiang River.

The Oujiang small swim bladder is a small fish with a total length of no more than 10cm. It usually lives in the middle and lower reaches of rivers. It hides in deeper waters during the day and swims to shallower waters to feed in the evening. It usually lives in the middle and lower reaches of rivers. Feeds on algae and small benthos.

Since December 2019, the Lishui Municipal Ecological Environment Bureau has organized a biodiversity baseline survey across the entire region, and a total of 134 species of native fish have been discovered. In 2021, through the implementation of the integrated protection and restoration project of mountains, rivers, forests, fields, lakes, grass and sand in the Oujiang source area, the Lishui City Biodiversity Protection Project will further promote biodiversity protection. The discovery of a new species of Oujiang small swim bladder and catfish fully demonstrates that the Oujiang River has The basin has high-quality water ecological environment and rich aquatic biodiversity.

animal tags： fish