Underwater, Indo Pacific, Osteichthyes, pristine waters, perciform fish, Asia, biodiversity, Pacific, PNG, Reefs, Reef, Marine, Blue, Schooling, Seascape, batfish, School of fish, Papua New Guinea, Shoal, South-east-asia, Tropical, swarm, South East Asia, Fish, Seascapes, Social Behaviour, Coral Triangle, Diversity, solidarity, vertebrates, Blue Planet, Coral Reef