Dr. Angel C. Alcala’s major contribution to biological science is his pioneering research work on no-take marine reserves, which are now recognized as tools of fishery management and marine biodiversity conservation throughout the world. Dr. Alcala started his research on marine reserves in 1974 as the major program of the Silliman University Marine Laboratory (renamed Dr. A.C. Alcala Environment and Marine Science Laboratories), which he founded in the same year. Initially established on two small islands off southern Cebu (Sumilon Island) in 1974 and off southeastern Negros Oriental (Apo Island) in 1982, marine reserves have been established throughout the Philippines. There are by now more than 564 notake marine reserves in the Visayas and probably no less than 1,000 in the whole country. No-take marine reserves have also been established in the Caribbean and Indonesia following the Philippine model.