Management of the effects of noise on marine fauna is improved by a detailed understanding of species diversity, occurrence, and ecosystem, and for migratory species, the interannual variability of their migration routes and timing. As part of the proposed Browse Project environmental management program, JASCO Applied Sciences, engaged by Woodside Energy Ltd. as operator for and on behalf of the Browse Joint Venture, designed and implemented a detailed, multifaceted acoustic monitoring program focused on blue whales using directional landers at Scott Reef, North-West Australia. The gathered information is being combined to develop a detailed understanding of this region, including the spatiotemporal distribution of marine mammals. Overall, 13 marine mammal species or species groups were detected, several of which are poorly understood, not previously characterized, or unknown. The directional acoustic data showed that some species exhibited clear preferences for different sides of the reef, and allowed for a spatial assessment of areas used by blue whales, which will be correlated with krill presence in future analyses. Information about marine mammals and prey can be integrated with predictions of effects from project activities, to develop a best practice adaptive management approach which minimizes the effects of noise on marina fauna across the proposed Browse Project.