A small team surveyed the natural shores of Sentosa early this morning. The main mission, to check for coral bleaching and see how the seagrasses are doing.
Volvatella slugs (Volvatella vigourouxi). There was a bloom of Hairy green seaweed (Bryopsis sp.) today and there were lots of these slugs among them. I noticed the big slugs often had a small one stuck on it. Smaller males on bigger females? So much more to learn about our shores!
How nice to come across the Discodoris lilacina nudibranch here. Just as for the Volvatella slug, this is our first sighting of this nudibranch for Sentosa! It was a lump under a rock. It's best identified by the spots on its pale foot. And look, it has a pair of tentacles underneath too.
mass coral bleaching in 2010. We started from the western shore behind Underwater World and saw many corals here. On the old jetty, there were some large and interesting corals!
Anemone coral (Goniopora sp.) and a Galaxy coral (Galaxea sp.).
Circular mushroom coral (Family Fungiidae) our first sighting of this for Sentosa since the reclamation for Resorts World Sentosa. I saw another which looked like a young Tongue mushroom coral (Herpolitha limax).
Sandpaper coral (Psammocora sp.) that were nice and brown. This species were among the first to bleach during the last mass coral bleaching in 2010.
Disk corals (Turbinaria sp.).
Montiopora corals (Montipora sp.) that used to be right behind Underwater World, but there were still healthy colonies of these corals here and there. As well as those that formed encrusting colonies.
Pore hard corals (Porites sp.), both smooth ones and lumpy ones. Most of them were not bleached.
Favid coral (Family Faviidae) of all kinds.
Leathery soft coral (Family Alcyoniidae). It seems fine. By the time we got to the western shore, the tide had already turned so we couldn't really survey it properly. But here's what I saw there in Nov 2011.
Frilly anemones (Phymanthus sp.), dotting the rocky shores here and there.
Broad zoanthids (Palythoa mutuki). There were lots of Button zoanthids (Zoanthus sp.) too.
Cake sand dollars (Arachnoides placenta) and also some Acorn worm (Class Enteropneusta) signs.
Olive snail (Family Olividae).
Brown sweetlips (Plectorhinchus gibbosus).
TeamSeagrass monitoring on the seagrasses near the area reclaimed for Resorts World Sentosa. I last checked for this in Jul 2011. There's quite a lot of seagrasss here still, with more species than on the western side next to Rasa Sentosa! Here's a nice patch of Sickle seagrass (Thalassia hemprichii).
Tape seagrass (Enhalus acoroides)!
Spoon seagrasses (Halophila ovalis), in some areas sprinkled with Needle seagrass (Halodule sp.).
Nyireh trees (Xylocarpus rumphii) which are Critically Endangered. They both looked fine although some of the leaves were full of tiny holes bitten by some kind of caterpillar I think. They were both not fruiting or flowering.
Raffles' pitcher plants (Nepenthes rafflesiana) and Delek air (Memecylon edule). Also lots of Sea Teak (Podocarpus polystachyus). They were all doing fine.
massive reclamation works for the new Pasir Panjang Container Terminal. Will these works affect this shore? We can only keep visiting the shore to see how it does.
Tomorrow morning, a big team heads out to Cyrene Reef for a predawn survey.
Pei Yan saw more cool stuff that I missed. Check out her blog for photos and stories.