A red tide has been sighted over the past week, the Inter-departmental Red Tide Working Group reported today (December 5).
 
     The red tide was spotted by staff of the Environmental Protection Department (EPD) on November 28 in Deep Bay. 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."
 
     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.

Ends/Friday, December 5, 2025
Issued at HKT 14:52

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