Changi is one of the best places to spot nudibranchs! Also sea stars, multicoloured sea cucumbers, weird cnidarians and more!
I have no idea kind of nudibranch it is. A closer look shows it has a fringe around the 'mouth', hand-like bumps on the body and a rather large frilly breathing gills on its back. I'm sure Chay Hoon will know what it is.
Biscuit stars (Goniodiscaster scaber) in various sizes, one small Cake sea stars (Anthenea aspera) and one Painted sand star (Astropecten sp.). I guess the rest of the team have to be there to find the special sea stars.
Sea apple sea cucumber (Pseudocolochirus violaceus). Its eye-poking clashing colour combinations warn of its toxic nature. It's not a good idea to put one of these in an aquarium as it may kill all the animals in the tank. This sea cucumber is clinging onto a Fan clam (Family Pinnidae) which were plentiful on the shore.
Orange sea cucumber and many Warty pink sea cucumbers (Cercodemas anceps) and Thorny sea cucumbers (Colochirus quadrangularis). There were also many buried Ball sea cucumbers (Phyllophorus sp.). But I didn't see any Purple sea cucumbers.
See-through sea cucumber (Paracaudina australis) and I've been waiting for the low spring tides to find one. So I'm very glad to spot one today.
White sea urchins (Salmacis sp.) and some Black sea urchins (Temnopleurus sp.). They were quite well dispersed.
Seagrass pipefishes. I checked and one of them seemed to be carrying eggs under his belly which was distended. But sadly, today I didn't see any Estuarine seahorses (Hippocampus kuda).
Cerianthids (Order Ceriantharia) are also abundant on this shore. Sometimes called peacock anemones because they are so colourful, although they are not true sea anemones. There seems several different kinds of cerianthids, but our cerianthids have yet to be identified.
elegant with tapering tentacles.
Haddon's carpet anemones (Stichodactyla haddoni) and several Tiny carpet anemones (Stichodactyla tapetum). There are still many of the yet-to-be-identified Tiger anemone. And I saw one Swimming anemone (Boloceroides mcmurrichi) and a few Peachia anemones (Peachia sp.). I also came across some of the sea anemones that Dr Daphne is interested in. Hurray!
Ball flowery soft corals (Family Nephtheidae).
tipped with balls.
Spiky sea pens (Scytalium sp.) which are often home to tiny Painted porcelain crabs (Porcellanella picta), others look like sticks: The Sea pencil, Flowery sea pens (Family Veretillidae) and Slender sea pens (Virgularia sp.).
hydroid. I managed to get a closer look at the super tiny polyps that emerge from the transparent branches.
fluffy orange hydroid that we often see growing on hard surfaces. The colony is made up of pretty daisy-like polyps.
Seagrass octopus! I only see this kind of octopus on Changi. It seems to be different from the kind we see on our reefs in the South.
Geographic sea hares (Syphonota geographica). Some were half buried, while this one reveals the inner shell that is usually hidden between the two flaps of its body.
Calf moon snail (Natica vitellus) on the shore today, some appear to be mating. I also saw two Tiger moon snails (Natica tigrina).
tubeworm that had fallen apart!
Sponge crabs (Family Dromiidae) which were carrying ascidians as a disguise.
Spoon seagrass (Halophila ovalis) which have large leaves here. In some parts of the shores, the seagrass blades had lost their green stuff. Oh dear. I don't know what this means.
Pink sponges (Haliclona cf baeri)! But I didn't see any sea fans (Order Gorgonacea) today.
purple branching sponge (Callyspongia sp.).
July 2011. It's good to know that the shore remains lively and well.