Male Bluegill Triggerfish (Xanthichthys auromarginatus) with an erect spinous dorsal fin photographed under water off Maui, Hawaii, USA. He was circling above his prepared spawning area suggesting that this is a courtship display; Maui, Hawaii, United States of America

horizontal winter animal color colour colorful close up yellow america marine sea underwater swimming deep portrait ridge american tourism tropical fish usa exotic scuba coral reef fins fin hi aquatic reproduction us hawaiian us saltwater aquarium erect hawaii vertebrate biosphere tropical climate side view looking away the states portraits spawning full length chordata phylum chordata tourist attractions attractions destinations animal behaviour animals marine life wildlife blue pacific ocean pacific nobody reefs actinopterygii attraction destination travel ocean colourful one animal color image vertebrates water united states of america sea life close up tourist attraction travel destination travel destinations animals in the wild place of interest coral reef colour image no one no people dive sites coral reefs molokini crater hawii state of hawaii male animal geological formation triggerfish balistidae chordate places of interest tetraodontiformes bluegill triggerfish xanthichthys auromarginatus courtship display teleostei male animals dive site gilded triggerfish class actinopterygii infraclass teleostei subclass neopterygii teleost neopterygii seacam underwater housing looking left facing left bluethroat triggerfish closeup usa diving destination diving destinations mokuʻaina o hawaiʻi state of hawaiʻi in situ male fish natural elevation spinous dorsal fin dorsal fin spine male bluegill triggerfish male bluethroat triggerfish male triggerfish spawning area