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Tawny nurse shark (Nebrius ferrugineus) is a species of carpet shark distributed across the tropical Indo-Pacific region. Tawny nurse shark is listed as “Vulnerable” on IUCN Redlist and rarely seen, recorded and studied in Indonesia. We recorded this species during SCUBA diving activity in Morotai waters in April 2022. Scientific record of the species is highly important for conservation and habitat management, particularly in Morotai, a region in North Maluku famous for shark-based marine tourism.

The aimed of this research was to find out the values of electrical power that obtained from the conversion of the velocity current in five point locations on the outflow Indonesian Through Flow (ITF) pathway. The research data from INSTANT 2004INSTANT -2006 was located in North Ombai Strait, South Ombai Strait, South Rote Island, West Lombok Strait, and East Lombok Strait. The study results of currents velocity are being converted into unit electricity power (Watt) using conversion equation Fraenkel. The experiment result showed that North Ombai Strait and East Lombok Strait can generate the electricity power for 0.12 kW and 0.11 kW. Nomenclature ITFabbreviation of Indonesian Through Flow INSTANT an international coorperation program between five country namely Indonesia, United States, Australia, France, and Netherland Sv abbreviation of sverdrup and the value ranges of ITF transport KKP a ministry of the Indonesia Government in charge of marine and fisheries affairs P the power of the ocean current in Watt ρ the density of water, in m 3 . kg -1 (1025 m 3 . kg -1 ) v speed (velocity) in m · s -1 A plane broad of turbine = turbine height x turbine diameter = 1.2 m 2 η generator coefficient (%) = 79.07 %