Eliuda Toxok, a shark caller from Messi village, prepares to go to sea in his outrigger canoe. Shark calling is the ancient tradition among the fishermen of New Ireland. They paddle into the Bismarck Sea where they make a noise, hitting water with a tool called a 'larding' which is made of coconut shells. This mimics the sound of a school of fish thrashing on the surface of the water, thereby 'calling' nearby sharks. When a shark comes close, the fisherman ensnares it using a 'ka'saman', a propeller-shaped float with a noose of twisted vine looped through it. The Shark population is under threat from ocean acidification, sea bed mining and commercial fishing for their fins.