Algal Bloom Incidents in Hong Kong

A total of 85 algal species have been recorded to form red tides in Hong Kong, but the majority of them are harmless. 23 of these algal species are considered as harmful or toxic. Amongst these harmful / toxic algal species, 5 of them resulted in fish kills and the other two caused contamination of shellfish by toxin in Hong Kong. The red tide associated fish kill events were mostly recorded in the 80’s and early 90’s.

Open map location: https://www.map.gov.hk/mapviewer/map.do?gmid={GMID}