How nice to see this pretty nudibranch (Glossodoris atromarginata) on Tanah Merah. The last time we saw this was before the shore was hit by an oil spill in May 2010.
It's a daylight low tide so fishes and fast moving critters are shy. With this excuse, I focused on large immobile animals and left Big Cam at home. Sneaky Swimming Cam worked hard this morning. I saw one Giant carpet anemone (Stichodactyla gigantea)! It was quite large. We didn't see this too often on Tanah Merah even before the oil spill.
Hollow-cheeked stonefish (Synanceia horrida)! This particular one was rather easy to spot as his body shape is quite clearly outlined.
Common sea stars (Archaster typicus) all of them very large. I didn't spot any on my last trip in April and May. Perhaps they are getting fewer?
orange hermit crab (Dardanus megistos) and a strange bluish hermit crab. I didn't come across many crabs though, aside from Swimming crabs (Family Portunidae) that zoomed around too quickly to shoot.
Pink moon snail (Natica zonalis) among the Ribbon seagrasses, while on the rocky shore I noticed several Hammer oysters (Family Malleidae) and saw one large Dolphin shell snail (Angaria delphinus). I also came across several Firebrand murex (Chicoreus torrefactus) small and medium-sized. But I didn't see any living moon snail (Family Naticidae) or their sand collars. I saw one tiny Pygmy squid (Idiosepius sp.) but couldn't shoot it.
Favid corals (Family Faviidae) that come in a wide variety of colours and patterns.
Pore corals (Porites sp.).
Flowery disk coral (Turbinaria sp.) and I saw one colony of what seems to be Encrusting disk coral (Turbinaria sp.).
Circular mushroom corals (Family Fungiidae), one Bracket mushroom coral and one Anemone coral (Goniopora sp.).
Button zoanthids or colonial anemones (Zoanthus sp.), some of them were quite large.
Swimming anemones (Boloceroides mcmurrichi), one Frilly sea anemone (Phymanthus sp.) and one Haddon's carpet anemone (Stichodactyla haddoni) in deeper water.
fanworms tucked here and there among the rocks and geofabric of the artificial seawall. Also many Thumbs up sea squirts (Polycarpa sp.), most of them completely covered in fluffy epiphytes.
Smooth ribbon seagrass (Cymodocea rotundata) are still large and seem quite lush.
Haddon's carpet anemones (Stichodactyla haddoni) in these two patches. I couldn't find any anemone shrimps in them today.
Tape seagrass (Enhalus acoroides) had just bloomed, I saw three female flower strands which had coiled up, suggesting that they had been pollinated. There was another small patch of Tape seagrass further away. All of them had long leaf blades.
Sickle seagrass (Thalassia hemprichii) is about the same size and seem to be doing alright. The blades are long and not all of them are 'chomped' at the tips. But I didn't come across the Spoon seagrass (Halophila ovalis) that I saw on my recent trips. The tide was a little high so perhaps I just missed them.
Mermaid's fan (Padina sp.). With small clumps of various other kinds of seaweeds.
Dubious nerite (Clithon oualaniensis) and Bazillion snails (Batillaria zonalis) covering large areas of the sandy lagoon.
Sand bubbler crabs (Scopimera sp.) on the high shore. This is the part of the shore where the crude oil had settled and was not removed. Hopefully, this means the crude oil has been broken down by nature?
Acorn worms (Class Enteropneusta) coils on some parts of the shore.
International Coastal Cleanup Singapore, more trash just keeps washing up. I notice at some times of the year, a particularly huge load washes up, then magically disappears after some time.
Siemens water project is also still discharging onto the shore. There are other everyday threats to our shores besides oil spills.
More about the oil spill on this blog and on the Oil spill facebook page.