blue dragon nudibranch

acidification adventure ampat bay beautiful biology blue cerata change climate colorful colors conservation coral diving dragon ecology ecosystem environment equator equatorial evolution fish habitat healthy host indonesia island lagoon landscape life marine natural nature niche nudibranch ocean pacific papua raja reef reefscape remote research scenery scenic science sea seascape shallow snorkeling spinecheek swims symbiosis symbiotic tentacles tourism travel tropical tropics underwater vibrant water weather wild wildlife