HK, Shenzhen team up for first joint fish release to boost GBA biodiversity

For National Fish Releasing Day, the Agriculture, Fisheries and Conservation Department (AFCD) on Friday conducted a marine stock enhancement activity at the Tai Po Wholesale Fish Market, releasing 23,500 juvenile fish. For the first time, the operation was synchronized with authorities in Shenzhen, marking a joint effort to enhance aquatic biodiversity in the Greater Bay Area (GBA).  

Diane Wong Shuk-han, Under Secretary for Environment and Ecology, emphasized that the initiative follows a science-based approach, releasing carefully selected fish species into natural habitats to restore and replenish marine resources.

The government aims to raise public awareness of marine conservation by encouraging community participation in scientifically guided restocking programs and tree-planting activities—promoting these as sustainable alternatives to traditional animal release practices, which can harm ecosystems if improperly conducted.  

This year’s release focuses on five native species—Hong Kong grouper, star snapper,  red seabream, yellowfin seabream, and blackhead seabream—into the Tung Ping Chau Marine Park. Native species were prioritized to prevent ecological disruption from non-local varieties and reduce inbreeding risks.  

AFCD Director Lai Kin-ming noted that species like the Hong Kong grouper and star snapper thrive in coral-rich areas, making them ecologically and economically ideal for restocking. Tung Ping Chau Marine Park, home to some of Hong Kong’s highest coral coverage, offers an optimal nursery habitat. The site’s fishing restrictions further boost survival rates for the released juveniles.