Photo with 45 notes
Red tide in Hong Kong. A total of 22 and 45 red tide incidents were recorded in Hong Kong waters in 2003 and 2004 respectively. While all the red tides that occurred in 2004 were caused by non-toxic algal species, four red tides in 2003 were caused by potentially harmful algal species, namely, Karlodinium micrum , Karenia mikimotoi, Chattonella marina and Phaeocystis globosa.