2019/01/17
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Red tide sighted
Thursday, February 15, 2018

A red tide has been sighted over the past week, an inter-departmental red tide working group reported today (February 15).

The red tide was spotted by a mariculturist at Three Fathoms Cove, including the Yung Shue Au fish culture zone, on February 9.

The red tide has dissipated and no associated death of fish has been reported.

A spokesman for the working group said, "The red tide was formed by Mesodinium rubrum, which is commonly found in Hong Kong waters and non-toxic."

The Agriculture, Fisheries and Conservation Department (AFCD) urged mariculturists at the Yim Tin Tsai, Yim Tin Tsai (East), Yung Shue Au and Lo Fu Wat 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 monitoring red tide occurrences to minimise the impact on the mariculture industry and the public.

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