A large number of 'seedlings' of this uncommon mangrove tree washed up on Changi!
Tumu berau (Bruguiera sexangula) is uncommon throughout its global range. In Singapore, there are two trees on Pulau Tekong, and two at Sungei Buloh. It is also being replanted at Chek Jawa, Pulau Ubin and at Pasir Ris Park. Here's a photo of a flowering planted Tumu berau at Chek Jawa.
interesting mangrove propagules land on Changi with the tides. Wow!
Today, a rather large team visited in expectation of a good long low tide. Alas, the tide didn't go as low as expected. By sunrise, not much of the shore was exposed. But that's ok. When the tide is not so low, I get a chance to look more closely at common animals and plants!
cerianthids (Order Ceriantharia). But I saw this one that was a bit different. It seems to have yellow bendy 'elbows' on its tentacles. Something I haven't noticed before.
Peachia anemone (Peachia sp.). This anemone usually has three knobs in the centre of its mouth. Today, I realise the knobs are at the tip of what seems to be a cylindrical thing in its mouth. Wow, that's just weird.
Haddon's carpet anemones (Stichodactyla haddoni). Some were crawling with tiny Carpet anemone shrimps (Periclimenes sp.)! I tried to take a close up of some of them today.
Pink sand dollars (Peronella lesueuri). It's still a mystery why they recently became so common here. I also saw some Cake sand dollars (Arachnoides placenta).
White sea urchins (Salmacis sp.). These animals carry all kinds of things. This particular one was carrying a mangrove propagule and an empty worm tube!
Remarkable sea cucumbers (Holothoria notabilis). So far, I've also only seen them at Chek Jawa, Cyrene Reef and Kusu Island. So Changi is one of the special places for this indeed interesting animal.
Cake star (Anthenea aspera) and several small Plain sand stars (Astropecten sp.). I didn't come across any Biscuit sea stars (Goniodiscaster scaber).
Fan clam (Family Pinnidae) is a handy home for a pair of Thorny sea cucumbers (Colochirus quadrangularis), and a little Swimming crab (Family Portunidae).
Baler volute (Melo melo). But it was already dead. Nevertheless, a small Striped hermit crab (Clibanarius infraspinatus) has taken over the empty shell. Nothing is wasted on the shore! So please don't take any shells home!
Olive snail (Family Olividae), plenty of Window pane shells (Placuna sp.) of all sizes from tiny to super large. There were still lots of Sea pencils, and many buried Smooth sea cucumbers and Ball sea cucumbers (Phyllophorus sp.). The rest of the team found the Japanese bonnet snail (Semicassis bisulcatum) we saw on our last trip to Changi. And many other interesting sightings too.
At dawn, a small family group came to explore the shore. How nice to see parents bringing their kids to see our shores. A pity that the tide was so high today.
Posts by others on the trip