HKIA and its surrounding areas are home to iconic and threatened species such as the Chinese White Dolphin and the Romer’s Tree Frog. We recognise our duty of care to avoid and minimise adverse impacts on biodiversity during the development and operation of HKIA and the role aviation plays in stopping the illegal trafficking of wildlife. As such, we have developed the HKIA Biodiversity Strategy to ensure a structured approach to biodiversity management, and to support the first city-level Biodiversity Strategy and Action Plan introduced by the HKSAR Government in 2016.
Our Strategy serves as a framework for conserving biodiversity at and around HKIA and identifies key priorities for action, mainly in the following three key focus areas.
Mitigation and enhancement measures adopted for the Three-Runway System (3RS) project. These include:
Using non-dredge land reclamation methods to minimise disturbance to the marine environment.
Adopting deep cement mixing (DCM) for ground improvement works both inside and outside contaminated mud pit areas.
Establishing dolphin exclusion zones around potentially noisy marine construction activities such as those with potential underwater noise generation.
Diverting the routes and controlling the speed of SkyPier high-speed ferries to minimise disturbance to Chinese White Dolphins.
Designating a marine park of about 2,400 hectares to tie in with the full operation of the 3RS.
The Fisheries Enhancement Fund (FEF) and the Marine Ecology Enhancement Fund (MEEF) were established in 2016/17 and managed by independent committees, with a budget of HK$400 million. In 2019/20, these funds approved over HK$13 million in support for thirteen projects. Key projects include:
Australian Redclaw Crayfish Farming Pilot Project –This is a pilot project for Australian redclaw crayfish (crayfish) farming in Hong Kong, aiming at increasing the diversity of the aquaculture industry in Hong Kong. The project will target to develop expertise in the area of crayfish farming and promote employment opportunities to the young generation in the fisheries industry.
Chinese Horseshoe Crab Study – This is a multi-year project aiming to investigate the ecological impact of microplastics on Chinese horseshoe crabs in Hong Kong’s western waters based on laboratory and field studies. The study results are expected to provide important baseline data for developing conservation policies and programmes for Chinese horseshoe crabs.
Separate from the FEF and MEEF, AAHK is also working on a number of marine ecology and fisheries enhancement projects in Lantau waters on a voluntary basis. These include:
Eco-enhancement seawall design – By incorporating concrete seawall blocks and vertical seawall panels with rough surfaces, the seawall aims to facilitate and promote colonisation of epifauna and to increase microhabitat complexity. The first batch of eco-seawalls was cast and installed on the eastern and northern vertical seawalls.
Fish restocking pilot test – Over 8,000 black seabream, yellowfin seabream and green grouper fingerlings were released in Q2/Q3 2019. The results from post-six-months-release monitoring revealed that the fishes were detected near the release location and along north Lantau.
Coral transplantation study – Over 1,000 coral colonies and fragments were transplanted from the northern seawall of the existing Airport Island, before the seawall was impacted by reclamation works, to recipient sites at Yam Tsai Wan on North Lantau. With lessons learnt from a first round of transplantation, it was observed that 98% of the second round monitored transplanted colonies remained healthy, with high live tissue coverage 16 months after transplantation.
Funded by the HKIA Environmental Fund, the In-To Tung Chung River Project completed the second year of its three-year programme.