Red tide slowly disappearing from coastal areas
After lingering for three weeks in the coast line in Eastern Shenzhen the harmful algal red tide is slowly disappearing. Areas affected by the red tide reduced from the 15 square kilometer mark to 2 kilometer mark, according to the city agriculture and fishery bureau.
No large Scale fish kills were reported and sea water conditions in Meisha and Yantain district already returned to normal. Remaining algal bloom has been spotted off Nan’ao. The red tide first appeared in July 30 temporary closing Dameisha beach and started dispersing last August 13. The last red tide incident affecting Shenzhen Bay happened in 2007 covering an area of almost 50 square kilometers. Algal blooms of this sort are usually high concentrations of algae caused by runoff of fertilizers used in agriculture.