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Tolo Harbour and Channel is home to a quarter of Hong Kong’s marine species,
including the vulnerable spotted seahorse and the endangered Hong Kong grouper. It is also an important nursing ground for fishes.
The iconic harbour has lost over 50% of its natural shoreline since the late 1960s. Coral diversity plummeted in the 80s by 80% due to pressure induced by the new town development. Frequent red tide in Tolo waters devastate the already declining fisheries and aquaculture industry. Despite the water pollution abatement efforts and territory-wide trawl ban, coral communities and fishery resources have been struggling to recover.
Through collective efforts with the Coral Academy at CUHK since 2023, the 3-year target of restoring 1,000 coral fragments in Tolo Harbour and Channel has been achieved, with a promising 85% survival rate and 88 fish species recorded at the restoration sites.
WWF is also pioneering local seagrass recovery. In 2024, two native species were transplanted to a mudflat in Tolo Harbour with the University of Hong Kong, resulting in a fivefold increase in coverage during the trial period. Work will continue to refine techniques and expand restoration to other suitable sites.
Once an important fishing ground, the area is part of a WWF initiative since 2025 assessing fish population health and genetic risks, combining with local ecological knowledge to understand changes in fishing grounds. These insights will guide future conservation priorities and support sustainable, area-based marine management.
An indoor nursery has been established at the Hoi Ha Marine Life Centre to support habitat restoration. Real-time water monitoring systems, together with advances in AI, photogrammetry and image segmentation tools, are enhancing coral monitoring, streamlining data analysis and assisting in the detection of illegal fishing activities
● Designate the area as Fisheries Protection Area to support fishery resources recovery. Encourage alternative livelihoods for fishers during transition periods.
● Promote sustainable aquaculture to increase community income.
● Facilitate upscaling of habitat restoration as NbS to enhance ecosystem resilience and rebuild fishery resources.
● Adopt a community-led, co-management model involving academics, fishers, local communities and NGOs.