Press Releases
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Two red tides sighted Two red tides have been sighted in Hong Kong waters in the past two days, an inter-departmental red tide working group reported today (May 28). Marine police observed a red tide at North Ninepin Island on May 26 and staff of the Agriculture, Fisheries and Conservation Department (AFCD) observed one at Deep Bay on May 27. Both red tides dissipated the following day. "The red tide at North Ninepin Island was formed by Trichodesmium erythraeum which is rare in Hong Kong waters. Though itching and burning upon skin contact were reported elsewhere, this kind of reaction has not been recorded in Hong Kong. "The one at Deep Bay was formed by Skeletonema costatum. It is common in Hong Kong waters and is non-toxic," a spokesman for the working group said. 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.
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