The blacktip reef shark (Carcharhinus melanopterus) behavior has been researched since the 1950s. Being considered as one of the most abundant shark species in Indonesia, the blacktip reef shark plays a significant role in maintaining the health of coral reef ecosystems. With its status as the fourth largest country in the shark tourism economy and the largest shark catcher in the world, Indonesia tries to increase the awareness of conservation of sharks, and at the same time reduce shark catches. As one of the important shark diving locations, Morotai Waters offers a 100% sighting probability of blacktip reef sharks. Therefore, increasing the understanding of blacktip reef sharks’ behavior and social structure in Mitita Island of Morotai Waters, is important to both conservation and tourism safety efforts. Determining the alpha individual is the key to mapping the social structure of blacktip reef shark communities. This study identified BRS-017 as the potential alpha individual in the shark habitat of Mitita Island. However, complex relations between school members have not been graphed. Hence, further research is required to enable a complete social structure of this shark schooling.