We are always glad to see Knobbly sea star! I saw these three large ones, but the team saw more. However, we didn't see any baby Knobblies.
Cake sea star and one Spiny sea star. There were a lot of Biscuit sea stars of all sizes from tiny to large. I also saw many medium sized Garlic bread sea cucumbers. There were many brittle stars which quickly retracted their arms into the crevices where they were hiding.
white sea urchins on the coral rubble near the very low water mark. I didn't see any among the seagrasses. I have often wondered why there are a lot more white sea urchins among the seagrasses on Changi, but much fewer at Chek Jawa's seagrass meadows.
Spotted orange hermit crab. The last time I saw it here was in 2001.
Reef octopuses. Two of them were stranded out of water. This one fortunately was still in a pool.
Estuarine moray eel. This is a fish and NOT a snake. It has tubular nostrils, tiny eyes and no pectoral fins.
Fan-bellied filefishes in this photo! I saw many of these fishes, mostly small.
Black-spot tuskfish. My first time seeing it on Chek Jawa and I seldom see it. This fish is currently being considered for listing on the IUCN Red List of internationally threatened fishes.
Black eeltail catfishes which were still alive although quite distressed. There were no nearby pools for me to transfer them to. Fortunately, the tide turns at sunrise and I'm sure they will be ok. I think Singapore's sea shores are so rich because our very low tides only occur in the dark. Otherwise, I can imagine many delicate marine animals will fry in the hot sun!
shark, which Dr Zeehan says looks like a bamboo shark. While Chay Hoon found a tiny Hollow-cheeked stonefish.
Red egg crab was hiding in a healthy looking colony of Pore coral. The last time I saw this crab on Chek Jawa was in 2005. Chay Hoon found a Mosaic crab too, which I haven't seen since 2001. There were many colourful Swimming crabs of various kinds. Tiny and small shrimps of all kinds were busy on the shore including:Prawns (Family Penaeidae), snapping shrimps (Family Alpheidae) and various kinds of tiny shrimps.
Fine-lined flatworm seems particularly common on Chek Jawa. But today, only this one was found. Hopefully Rene will be able to sort out its identity.
Haddon's carpet anemones, especially in the seagrass meadows, but also on the coral rubble area. I didn't see any that were bleaching.
Snaky sea anemone! My first time seeing this since we started the predawn surveys. The last time I saw this at Chek Jawa was in 2005.
Tiger anemone, and many Swimming anemones.
Ball flowery coral, and many Spiky flowery soft corals. One had Tiny colourful brittle stars. But I couldn't find any Ovulid snails.
Zebra coral, but also small to medium-sized Boulder pore corals. I saw about 15 colonies. Kok Sheng says he saw about the same number as on his last survey in Jan 2014.
Posy anemones, as well as many small mounds of Button zoanthids.
Candelabra sea fans, one small cluster of Tree seafan, two clusters of Skinny sea fans, and one Gnarled sea fan. I couldn't find any of the usual commensals on the sea fans (like snails or clams).
Flowery sea pens. I also saw a few half-retracted Spiky sea pens. I also saw one Common cerianthid.
Yellow horn sponges and Yellow bumpy sponges.
Barrel sponge, a few clusters of Purple branching sponge, some black sponges but very few and small patches of other colourful sponges.
in Aug 2013.
The photo below is of the Chek Jawa coral rubble area before the sponges were wiped out by the mass deaths in 2007. This incident is believed to have been caused by heavy rain and Kok Sheng did a study of Chek Jawa's recovery.
More about the Jan 2014 survey:
- Kok Sheng on facebook and on his Chek Jawa project blog
- Chay Hoon on facebook
- Mei Lin on her blog
- Pei Yan on her blog
Thanks to NParks for permission and support to do these predawn low spring tide surveys of Chek Jawa. Thanks also to Chay Hoon for making all the transport arrangements. And the team for helping to cover as much ground as we can during the narrow low tide window. Thank you!
More about why I think it's important to regularly survey Pulau Sekudu and Chek Jawa.
Posts by others on this trip