Percentage of hard corals along the coast of Vietnam decreased from 34.6% to 21.1%, in Bai Tien (Khanh Hoa) the coral coverage was only 8.2%.
Survey results of Nha Trang Institute of Oceanography (Vietnam Academy of Science and Technology) showed that in 10 years (from 1994 to 2014), the average coverage of hard corals in Vietnam decreased from 34, 6% down to 21.1%. The number of coral reefs with poor coverage accounts for 63% of the total number of coral reefs in the country.
The latest survey results in June 2019 in the Bai Tien area (Khanh Hoa), the coral coverage was only 8.2%. “The cover of living coral in Bai Tien is much lower than the average coverage of living coral in Nha Trang Bay is 20.3%”, Mr. Ben said, saying that there have been many restoration measures but the coverage. the number of corals in the country is lower and lower.
The cause of this situation is due to storms and floods, construction of coastal constructions, fishing with explosives, toxins or dumping garbage into the sea … “All these actions put pressure to directly kill the goods. series of groups of coral ”, said Dr Ben.
Since 2001, Nha Trang Institute of Oceanography has recovered corals in some marine areas such as Phu Quoc, Con Dao, Nha Trang, Ly Son, Cu Lao Cham, Cat Ba … the survival rate reached 60% and the growth rate. good growth after recovery. In September, the Institute will propagate 600 coral groups at Bai Tien nursery. “When there are good results, it will be replicated to the entire sea area,” said Deputy Director of the Institute of Oceanography.