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Luxury at sea

Michelle Zhu
Michelle Zhu • 6 min read

SINGAPORE (June 18): Navigating choppy waters is literally part and parcel of Dr Mark Erdmann’s work, having previously spent 23 years of his career living and working in Indonesia as a coral reef ecologist. Though he is now based in Auckland, New Zealand, his underwater adventures are far from over. Aside from playing an active role on the boards of Indonesian non-governmental organisations (NGOs) within the Coral Triangle, he also serves as Conservation International’s (CI) vice-president for Asia-Pacific marine programmes through which he continues to come face-to-face with various species of sharks, rays and other wild marine animals — many of which were, up until recently, unknown to science. It was therefore a pleasant change of environment for Erdmann when he and a team of scientists were invited to take their research expedition to the Raja Ampat Islands on board Rascal, a 31m luxury phinisi, a traditional Indonesian two-masted sailing ship mainly built by the Konjo tribe of South Sulawesi.

Together with ichthyologist Gerry Allen as well as scientists from CI Indonesia and NGO Manta Trust, Erdmann embarked on a mission to study the Raja Ampat manta ray population and migration patterns along with coral reef fish biodiversity. Over the course of seven days, they were taken by Rascal to the south coast of Batanta, up to Dayan, around Wayag, and even to the lesser-known waters of Ayau — an area off the beaten path where Erdmann, who has more than two decades of diving experience in the region, says he discovered overwhelming biodiversity.

The week-long adventure earned Erdmann and his crew the discoveries of 32 new manta ray individuals, at least two potential new species of fish, and seven species of reef fish not previously known to inhabit the Bird’s Head Seascape. It was also over the course of this trip that they managed to tag a total of seven rays for satellite tracking, and even discovered new cleaning stations thanks to the deployment of drones.

“Raja Ampat has a number of very well-known manta sites or cleaning stations where they come in on a daily basis to get cleaned. We currently have a lot of tourists visiting these sites [for manta sightings]. In other parts of Raja Ampat, finding those cleaning stations for the first time can be a very difficult thing to do, even if you happen to be quite close to a manta. Recently, we’ve started using drones to do this. This was taken in Ayau,” says Erdmann of the projected image on the white screen: A bird’s eye view of a lone ray whose silhouette can be faintly made out under the turquoise water’s surface.

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