Research studies focused on species of importance in Southeast Asia: the finfishes seabass (Lates calcarifer), grouper (Epinephelus spp.), snapper (Lutjanus sp.), mullet (Mugil cephalus), rabbitfish (Siganus guttatus), milkfish (Chanos chanos), tilapia (Oreochromis spp.), catfish (Clarias macrocephalus), and bighead carp (Aristichthys nobilis); the crustaceans tiger shrimp (Penaeus monodon) and white shrimps (P. indicus, P. merguiensis); the molluscs (Placuna placenta and P. sella); and the seaweeds (Gracilaria spp.). Highlighting 1990 are six significant events: (1) the establishment of a pilot Seafarming and Searanching Project in Antique, Panay Island, central Philippines: (2) the spontaneous spawning of captive grouper (Epinephelus suillus); (3) natural spawning of milkfish in concrete tanks, the first in SEAFDEC/AQD milkfish research; (4) increased number of scientific papers (published, in press, submitted); (5) a SEAFDEC/AQD paper winning first prize in the socioeconomic category at a National Research Symposium; and (6) intensified dissemination of hatchery technologies.