25/09/2026
SIYENTISTANG PINOY | THE REEFS HE FOUGHT TO PROTECT
For a country surrounded by water, the health of the sea is closely tied to the lives of many Filipinos. Dr. Angel Chua Alcala, a Filipino marine biologist and National Scientist, spent much of his career studying marine ecosystems and finding ways to protect them. His work on marine sanctuaries and artificial coral reefs helped bring science closer to the coastal communities that depended on the sea.
Alcala began his scientific career with a strong interest in the natural world, earning his Biology degree from Silliman University before pursuing graduate studies at Stanford University. In 1974, he established the Silliman University Marine Laboratory, which became an important center for marine research in the country. From there, his work expanded beyond studying marine life to addressing the growing need to protect Philippine waters.
One of his notable contributions was his work on marine sanctuaries, including those established in Sumilon Island, Cebu, and Apo Island, Negros Oriental. His research showed that restricting destructive fishing practices in protected areas could help fish populations and marine ecosystems recover. He also emphasized the involvement of local communities, making conservation a shared effort rather than a responsibility left only to scientists.
Alcala also pioneered the use of artificial coral reefs as a way to provide additional habitats for marine organisms and support fisheries. These efforts reflected his practical approach to conservation, using scientific research to respond to problems faced by both marine ecosystems and fishing communities. His contributions were recognized with the 1992 Ramon Magsaysay Award for Public Service, and he was later named a National Scientist of the Philippines in 2014.
The reefs and waters Alcala studied are part of a much larger marine environment that continues to sustain people across the Philippines. His work showed that protecting these resources requires more than observing what happens beneath the waves; it requires understanding the pressures placed on them and acting on that knowledge. In Philippine marine science, Alcala’s work remains a reminder of what research can accomplish when it is brought beyond the laboratory and into the communities that need it.
Written by Mia Castillo
Graphics by Ariane Tan
Layout by Dylan Sealana
