Scuba Diver Ocean Planet Issue 06/2016 | Page 83

PHILIPPINES Malapascua Island 22 A tiny moon wrasse rises to greet an oceanic thresher shark at Monad Shoal Text and images by SIMON ROGERSON The island of Malapascua lies in the heart of the Philippine archipelago, just across a strait from the island of Cebu. Nearby, oceanic thresher sharks spend the night hunting in the abyssal trenches that lie close to the Philippines, but as dawn approaches their minds turn to a different behaviour. Having picked up parasitic copepods while hunting, they have to find cleaner wrasse to remove the stowaways. The sharks are adapted for life in the abyss, but the cleaner fish are diurnal, so there is a golden hour around dawn when the ritual has to take place. The presence of the threshers has created a thriving tourism-based economy on the island The setting is a submerged island called Monad Shoal, a 35-minute boat ride from Malapascua. Each morning, a small flotilla makes the journey in expectation of getting the divers in front of one of the ocean’s hardest-to-find sharks. And most days, people see them. The encounters can be distant and fleeting, or they can be close and sustained, but the key thing is that people keep seeing the threshers. The presence of the threshers has created a thriving tourism-based economy on the island. People come to Malapascua to see the sharks, but there’s more variety at nearby Gato Island, a sea snake sanctuary with a mixed habitat that ensures a vast array of marine life, including painted frogfish and many nudibranchs. You don’t always see the resident sea snakes, but they are pretty much guaranteed on night dives around Malapascua, which also yield mandarinfish and