UPDATE: First Hong Kong Oyster Reefs Exhibit in Pak Nai
With support from the government’s Environment and Conservation Fund, TNC will establish the first permanent Hong Kong Oyster Reefs Exhibit at Ap Tsai Hang in Pak Nai in mid-May. The exhibit will highlight the history of the Deep Bay community as well as scientific information about oysters. We will also organize field trips with secondary schools from across Hong Kong to inspire and engage students to learn more on the significance of oyster habitats to the environment.
Address: 283A Nim Wan Road, Pak Nai
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Hong Kong Oyster Restoration
For more than 700 years, oysters have been an important commodity in Hong Kong—unsurprising given Hong Kong people’s love for seafood. Often overlooked as a crucial marine habitat, oysters are also ecosystem engineers that play a tremendous role in coastal protection and support marine ecosystems wherever they thrive.
Decades of commercial dredging for lime, coastal reclamation and over-harvesting have decimated the oyster populations along with the long list of benefits they provide. Oyster reefs are the most endangered marine habitat on the planet with an estimated 85 percent global loss. To make things worse, the past few decades also witnessed a steep decline in oyster farming bringing the 700-year-old heritage to its knees.
Oysters and other shellfish provide a boon of benefits, acting as natural filter feeders that improve local water quality and stabilize shorelines. A single oyster can filter 200 liters of water a day, cleaning up murky waters to create healthy environments for seagrass, small fish and other species to thrive.
With support from J.P. Morgan and in partnership with the Swire Institute of Marine Science (SWIMS) of The University of Hong Kong, and drawing from our expertise in restoring oyster reefs at more than 150 sites around the world, we have embarked on an ambitious effort to understand and quantify oyster reef’s critical ecological benefits and to restore shellfish reefs in Deep Bay, north western Hong Kong.
With support from the Lau Fau Shan and Yung Shue O aquaculture communities, TNC has deployed two pilot oyster reefs in Lau Fau Shan and Tolo Harbour using discarded shells. For the next coming years, we will conduct ongoing monitoring of the reef’s growth and its impact on biodiversity and water quality. These pilots are essential for data collection and restoration method development for future scale-up.