tThis study presents the establishment of an integrated multi-trophic aquaculture (IMTA) system in thetropical open waters of southern Cebu, Philippines using a combination of locally available species,namely donkey’s ear abalone (Haliotis asinina) as fed species and seaweeds (Gracilaria heteroclada andEucheuma denticulatum) as inorganic extractive species. The culture of Caulerpa lentillifer…