Previous Red Tide Occurrences
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Click on the week for red tide occurrences during that period in the past month Overview of the period 2024/12/20 - 2024/12/27 Nine red tides were sighted over the past week, the Inter-departmental Red Tide Working Group reported today (December 27). On December 21, staff of the Leisure and Cultural Services Department (LCSD) spotted the first three red tides at Lido Beach and Casam Beach, Approach Beach, and Ting Kau Beach in Tsuen Wan. On December 23, members of the public and staff of the Marine Department spotted two red tides in Deep Bay and Tai Lam Chung respectively. On December 26, LCSD staff spotted two red tides at Ma Wan Tung Wan Beach and Kwun Yam Beach in Cheung Chau respectively. On December 27, staff of the Environmental Protection Department and the Agriculture, Fisheries and Conservation Department (AFCD) have spotted two red tides in Victoria Harbour and Discovery Bay respectively. The red tides at Deep Bay, Tai Lam Chung, Kwun Yam Beach in Cheung Chau, Victoria Harbour and Discovery Bay still persist, while the other four red tides have dissipated. No associated fish deaths have been reported as of today. A spokesman for the working group said, "The red tides at Kwun Yam Beach in Cheung Chau and Discovery Bay were formed by Noctiluca scintillans, which is commonly found in Hong Kong waters and non-toxic. The other seven red tides were formed by Phaeocystis globosa, which is commonly found in Hong Kong waters. According to literature overseas, the algal species can produce foam that may affect fish." The AFCD urged mariculturists at Ma Wan and Cheung Sha Wan fish culture zones to monitor the situation closely and increase aeration where necessary. Red tide is a natural phenomenon. The AFCD's proactive phytoplankton monitoring programme will continue to monitor red tide occurrences to minimise the impact on the mariculture industry and the public. Please click here to view the location of red tide sighted in Hong Kong waters. Last update: 2024/12/27 noon
-------------------------------------------------------------------------------- Overview of the period 2024/12/13 - 2024/12/20 A red tide was sighted over the past week, the Inter-departmental Red Tide Working Group reported today (December 20). On December 18, staff of the Agriculture, Fisheries and Conservation Department (AFCD) spotted a red tide in the south-western waters of Hong Kong, including Ma Wan, Lo Tik Wan, Sok Kwu Wan and Cheung Sha Wan fish culture zones. The red tide still persists, and no associated fish deaths have been reported as of today. A spokesman for the working group said, "The red tide was formed by Phaeocystis globosa, which is commonly found in Hong Kong waters. According to literature overseas, the algal species can produce foam that may affect fish." The AFCD urged mariculturists at Lo Tik Wan, Sok Kwu Wan, Ma Wan and Cheung Sha Wan fish culture zones to monitor the situation closely and increase aeration where necessary. Red tide is a natural phenomenon. The AFCD's proactive phytoplankton monitoring programme will continue to monitor red tide occurrences to minimise the impact on the mariculture industry and the public. Please click here to view the location of red tide sighted in Hong Kong waters. Last update: 2024/12/20 noon -------------------------------------------------------------------------------- Overview of the period 2024/12/06 - 2024/12/13 No red tide was reported during this week. Last update: 2024/12/13 noon -------------------------------------------------------------------------------- Overview of the period 2024/11/29 - 2024/12/06 No red tide was reported during this week. Last update: 2024/12/06 noon
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