December 23, 2016
Hantu Blog dive guide and Math teacher, Ng Boon Leong, took to the waters of Pulau Hantu on a day of clear skies and calm waters for a day of photography with our veteran guide Jeemee Goh and macro enthusiast Toh Chay Hoon. It was also a training day for one of our new guides! We’re always excited to take new people out, share our Hantu Blog story, and build our family so that more people can discover how very special Singapore reefs are! Boon Leong shares, “The visibility was a relatively good 4m, and this allowed us to spot some of the smaller critters on the corals and hydroids,” such as this Doto sp. nudibranch!
After the first dive, we headed off to the Northeast corner of Hantu Kechil. This is a site that we do not often go to as the currents are usually unfavourable, so we made the most of this opportunity to explore this site. It has rewarded us with numerous colourful nudibranches in the past, and today was no exception.
Two Cuthona sibogae look at each other. Cuthona sibogae is a species of aeolid nudibranch. They usually feed on members of the phylum Cnidaria (sea anemones, corals, gorgonians, and jellyfish) (Bertsch 2004). A small group of aeolids use zooanthellae (microscopic green algae) in their bodies to make food (Ellis 2001).
“As the monsoon season approaches, the waters have also turned a bit chilly, a welcome change from the hot weather throughout most of 2016. Most of the bleached corals have recovered, though some of the anemones, unfortunately, still remain starkly bleached, a reminder of the consequences of human action upon the environment.” – Ng Boon Leong.
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