Analysis of the Status of Marine Fish Proliferation and Release in Zhejiang Offshore

Abstract

Since the 1980s, the main fishery resources in Zhejiang offshore have shown a declining trend. Therefore, since 2000, relevant units have continued to carry out artificial proliferation and release to repair fishery resources. Based on the statistical data of proliferation and release of Zhejiang offshore fish from 2017 to 2021, this paper compared the trends of release funds, release quantity and release species. It was concluded that 16 kinds of marine fish such as Larimichthys crocea, Acanthopagrus schlegelii, Nibea albiflora and Oplegnathus fasciatus were mainly released in 12 important proliferation and release sea areas of Zhejiang offshore from 2017 to 2021. The total investment in releasing funds was 112.859 million yuan, and a total of 467.998 million marine fish fry were released, of which 3.301 million yuan were marked fish and 488,000 fry were released. Investigation and literature reports show that stock enhancement plays a positive role in increasing the biological resources of marine fish in Zhejiang offshore, restoring the community structure of marine fish, protecting marine biodiversity, and promoting the development of marine fishery. Finally, according to the investigation and related literature, the author sorted out the problems existing in the proliferation and release and put forward relevant suggestions for improvement, in order to provide reference for the future scientific and standardized implementation of proliferation and release.

Keywords

• fishery resources
• proliferation and release
• zhejiang offshore