Nearly a decade since my last trip here, I returned to this vast sandy shore, a habitat that is now rare in Singapore (thus 'lost') and home to animals that we seldom see on our other shores.
This reclaimed shore in Changi East was in the past, remote and difficult to reach; thus 'lost' in yet another sense. As development started in the area, it became strictly off limits without a permit. Thanks to NParks for letting me come along for a brief recce trip.
The most abundant animal on this shore were
Cake sand dollars! They covered some areas so thickly we just didn't walk there.
We also came across several large sand dollars that look like
Keyhole sand dollars, with slots in the body. But these are a more rarely seen kind, possibly
Echinodiscus auritus.
There were lots of living
Button snails, but they were not as lively as those seen elsewhere - didn't burrow away quickly when they are revealed. I'm not sure why. Also abundant on the mid-shore,
Bazillion snails!
There were many predatory snails too. It was great to see a wide variety of moon snails. I came across several
Tiger moon snails clasping one another (mating?) and there were many
'sand collars' - which contain living moon snail eggs. There were several very large white moon snails that might be
Egg-white moon snails, as well as one flatter red moon snail which is more definitely an Egg-white moon snail. I also saw
Ball moon snails and one
Lined moon snail.
There were many
Weasel olive snails and I was glad to see some
Fig snails. But we didn't come across any
Bonnet snails. Other predatory snails seen include
Noble volutes and
Spiral melongena snails. There were also many scavenging
whelks.
There were many
Orange-striped hermit crabs. There were many small
Flower crabs swimming in the shallow water, and I saw one
Spotted moon crab. There were many
Horned ghost crabs foraging far away from us. I saw several
Pearly anemones, which does seem to prefer sandy shores, and one
Haddon's carpet anemone. I didn't see many burrowing worms though, only one
Acorn worm. As the sun set, one large
Painted sand star emerged (it did not have an orange underside).
I saw many large
Window pane shells on bare sand on the mid-shore. I thought this odd as these clams are usually found in seagrass. I looked in deeper water and indeed, got glimpses of
Spoon seagrass! Dark patches in deeper water might be seagrass! We may be able to see more if we come during a much lower tide.
This deeper area where the seagrass seems to be growing is surrounded by sand bars. The sand bars emerged briefly as the tide fell. We walked out to the nearest sand bar to have a look.
Even further away were more sand bars, and breaking waves indicating shallow areas where seagrasses and other marine life might be found. The area appears vast!
I look forward to returning with the full team on a lower tide in darkness, when more animals should be out and about. Thanks to NParks for inviting me along for this trip.
Previous trips to these shore were in
Nov 2011,
Oct 2011, quick visit in
Oct 2011,
Jan 2010, first trip in
Jan 2010.
Other shores surveyed by othersJianlin Liu checked out Pasir Ris on 17 Dec
Vincent Choo surveyed Big Sisters Island on 17 Dec
