• A survey on the past and present fisheries condition of angelwing clam in Iloilo Province was conducted.  It turned out that angel wing clams can be found only in Panay and Roxas City (Capiz).

• 5 transects have been sampled for clam density. Results showed that clam density ranged 1-147 individuals/sq.m. Mean number of clams per transect was 70 individuals or 7 individuals/sq.m

• Two batches (287 and 464 batches) of broodstock were obtained, the first batch was immatured but the second was well matured, judging from the result of anatomy study.

• Artificial spawning was successfully induced by serotonin injection.

• Salinity tolerance was studied using the immature batch.

• There were no significant differences in survival from 20 ppt to 40 ppt but significantly lower in 0 and 10 ppt.

• A feeding trial was conducted study the feeding rate of clams placed horizontally or vertically in culture tanks.

• Clams placed vertically had significantly higher feeding rate than those placed horizontally.

This high demand led to indiscriminate harvesting resulting to the depletion of natural stocks of the angelwing clam Pholas orientalis. Seed production techniques in the hatchery should be established prior to any attempt of considering resource rehabilitation through stock enhancement. Studies on the biology and fisheries of the angelwing clam should also be conducted while developing seed production techniques:

• Technology for seed production of angelwing in the hatchery will be developed;
• The population of angelwing clam in the area where the broodstock are being collected will be assessed.