As day turned to night, two Australian icons— Sydney Harbour Bridge and the Opera House— were silhouetted on the skyline. In the fading light, we prepared our equipment for another excursion into Australia’s temperate seas to discover and prove the existence of fluorescing marine life forms in environments other than tropical oceans.
Swirling unicorn fish surround me and seem to have accepted me as one of their own. I can no longer see the surface nor anything else, save for a wall of fish. Only four minutes into the dive and it’s already evident that this site is living up to its reputation, literally boiling with fish. Moments like this remind me why I dive.
Lionfish, which have spines that contain venom, are a well-known problem in Atlantic coral reefs. These invaders from the tropical parts of the Pacific and Indian oceans have no natural predators in the Atlantic Ocean. They are eradicating many fish populations in the shallow reefs that they have overtaken. Recently, the overwhelming problem has proven worse than originally thought.
