Press Releases
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Red tides sighted Five red tides have been sighted in Hong Kong waters in the past few days, an inter-departmental red tide working group reported today (September 3). Staff of the Leisure and Cultural Services Department observed a red tide at Clear Water Bay First Beach and another one at Clear Water Bay Second Beach on August 27. Red flags were hoisted at the beaches until August 31 when both red tides dissipated. The other three red tides were observed at Shing Mun River, Tai Tau Chau and Kai Lung Wan, and Yung Shue Au to Kat O on August 27, August 31 and September 1 respectively. The one at Shing Mun River dissipated on August 30 while the other two still persist. "The red tide at Shing Mun River was formed by Haematococcus pluvialis which is seldom found in Hong Kong waters. The rest were formed by Prorocentrum micans which is common in Hong Kong waters. All of them are non-toxic," a spokesman for the working group said. The Agriculture, Fisheries and Conservation Department has stepped up red tide monitoring and informed mariculturists in fish culture zones concerned, including Tai Tau Chau, Kai Lung Wan, Shau Tau Kok and Kat O fish culture zones of the red tide and urged them to monitor the situation closely Red tide is a natural phenomenon. The department's phytoplankton monitoring programme will continue monitoring red tide occurrences to minimise the impact on the mariculture industry and the public.
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