1. Institute of Biology; College of Science; University of the Philippines; Diliman Quezon City Philippines
2. Biological Sciences Department; College of Arts & Sciences; West Visayas State University; La Paz Iloilo City Philippines
3. SEAFDEC/AQD; Tigbauan Main Station; Tigbauan Iloilo Philippines
4. Aquaculture Department; Southeast Asian Fisheries Development Center (SEAFDEC/AQD); Binangonan Freshwater Station; Binangonan Rizal Philippines
5. Natural Sciences Research Institute; University of the Philippines; Diliman Quezon City Philippines