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 2026/09/11 - 2026/09/18 No red tide was reported during this week. Last update: 2026/09/18 noon ------------------------------------------------------------------------------- Overview of the period 2026/09/04 - 2026/09/11 A red tide has been sighted over the past week, the Inter-departmental Red Tide Working Group reported today (September 11). The red tide was spotted by the public on September 8 at the Sham Wan Fish Culture Zone. The red tide has dissipated and no associated fish deaths have been reported as of today. A spokesman for the working group said, "The red tide was formed by Levanderina fissa, which is commonly found in Hong Kong waters and non-toxic." The Agriculture, Fisheries and Conservation Department (AFCD) urged mariculturists at Tap Mun, Kau Lau Wan, Sham Wan, Wong Wan, Sha Tau Kok, Ap Chau, Kat O, O Pui Tong, Sai Lau Kong, Yim Tin Tsai, Yim Tin Tsai (East), Yung Shue Au, Lo Fu Wat and Mirs Bay 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: 2026/09/11 noon -------------------------------------------------------------------------------- Overview of the period 2026/08/28 - 2026/09/04 No red tide was reported during this week. Last update: 2026/09/04 noon -------------------------------------------------------------------------------- Overview of the period 2026/08/21 - 2026/08/28 No red tide was reported during this week. Last update: 2026/08/28 noon -------------------------------------------------------------------------------- |
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