Divers in the Philippines create nurseries for rescued coral

BAUAN, PHILIPPINES — A group of scuba diving experts and enthusiasts are setting up coral nurseries in a popular dive spot south of Philippine capital Manila to help in the propagation and recovery of damaged coral.

In coastal town Bauan in Batangas province, divers collect coral damaged and dislodged by natural calamities and man-made interference such as plastic waste and dynamite fishing, and salvage living parts before placing them in coral nurseries.

"If we select those that are actually more tolerant to climate change, to higher temperature, that can survive higher temperature, then you can actually propagate more, so next time you are actually like building a reef of the future," said marine scientist Sam Shu Qin, co-founder of non-profit conservationist group Our Singapore Reefs which is taking part in the initiative.

Bauan, a two-hour drive from Manila, boasts a diverse coral population which has attracted diving enthusiasts for decades. But its coral has frequently suffered from natural hazards such as typhoons and human-caused destruction, endangering the ecosystem and tourism industry.

In 2020, parts of surrounding Batangas province suffered a mass coral bleaching event — when high temperature turns coral white through algae loss — with about 72 kilometres of coastline affected, said conservationist group Reef Watch Philippines.

It prompted Bauan-based scuba diving instructor and resort owner Carmela Sevilla to plant nurseries for detached coral, and invite likeminded conservationists to join the initiative.

Aside from providing a home for orphaned coral, nurseries serve as repositories in case there is a need to replenish coral amid environmental challenges brought by climate change, such as mass bleaching.