Underwater view of Bengal Sergeant fish protecting their eggs from schools of Green Moon Wrasse

bengal sergeant wrasse marine science damsel fish animal behavioural marine thalassoma lutescens coloured fish tropical waters indopacific black bands underwater behaviour nature prey predator survey environmental coastal salt water tropical estuaries intertidal rivers australia habitat ecosystems aboriginal pristine water ocean unique shore wetlands fish seagrass eco tourism native bushland gbr great barrier reef behavioural scuba diving specimens aquatic animalia