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Overview of the Current Week
2026/2/27 - 2026/3/6
A red tide was sighted during the past week, the Inter-departmental Red Tide Working Group reported today (March 6).
On March 2, staff of the Leisure and Cultural Services Department spotted a red tide at Deep Water Bay Beach, Hong Kong Island. The red tide has dissipated. No associated fish deaths have been reported as of today.
A spokesman for the working group said, "The red tide was formed by Noctiluca scintillans, which is commonly found in Hong Kong waters and non-toxic. "
The Agriculture, Fisheries and Conservation Department (AFCD) urged mariculturists at Lo Tik Wan, Sok Kwu Wan and Po Toi 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: 2026/3/6 noon
Red Tide Reporting Network
We welcome your assistance in reporting red tide to us. Please record the following information:
(1) location of red tide
(2) colour of the seawater
(3) extent of the red tide
(4) occurrence of dead fish and any other abnormal features observed around the red tide.
Please report to:
3468 3714 (office hours) OR 1823 (outside office hours)
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