This tiny island off Chek Jawa was lively during our annual survey! Colourful sponges are covering some parts of the rubbly shores, the seagrass meadows are lush - with dugong feeding trails, and all kinds of interesting animals were seen.
Lying next to a major shipping channel, and in the flight path of planes landing at Changi, the tiny island is rich with marine life.
Jul 2015. The area and the lagoon itself is thickly covered with seaweeds of various kinds.
Pink flowery soft coral and Spiky flowery soft corals were also growing on the rubble. I saw one small Ball flowery soft coral. There were many Flowery sea pens and some Sea pencils.
Cerianthids. I tried to video them in the dark...
Kanga nudibranch and one Reef octopus.
Noble volute who was laying a large egg capsule.
Gnarled sea fans and Candelabra sea fans, Skinny sea fans and one Maze sea fan. I sense we saw more sea fans in better condition during our last survey in Jun 2017.
Knobbly sea stars. They looked like big old grandmothers, and were rather dispersed. We didn't see any small ones. I saw a Biscuit sea star, a Cake sea star and a Crown sea star.
Thorny and Pink warty sea cucumbers, but not as abundant as on Changi. Others seen included Orange sea cucumbers, Ball sea cucumbers and many small Garlic bread sea cucumbers in the calmer lagoons. There were also some White sea urchins.
Disk coral, which I have not seen since 2013. I also saw one Pock-marked coral and many small Boulder pore corals. This is somewhat similar to our last annual survey in Jun 2017, just after mass coral bleaching in 2016.
Diadema sea urchins have moved to another nearby rock.
Haddon's carpet anemones are super abundant everywhere on the shore. Other anemones seen in large numbers included Swimming anemones and Posy anemones.
dugong feeding trails. The trails appear to avoid the carpet anemones. The seagrasses were mostly Spoon seagrass (both small and large leaf blades). There were many patches of Fern seagrass and Needle seagrass.
Tape seagrass. One had leaf blades about 30cm long, the other about 50cm long.
Serrated ribbon seagrass appears to have grown larger, to about 10m from the low water mark.
This little island lies just off Chek Jawa on Pulau Ubin. It is part of the Chek Jawa Wetlands that is managed by NParks. Pulau Sekudu is off limits since 2007 and requires special permission from NParks. 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!
Chek Jawa and Pulau Sekudu may be affected by the 2030 landuse plan by the Ministry of National Development. The plan includes plans for a road link (black line) from the mainland jumping off at Punggol, crossing to Pulau Ubin through Chek Jawa to jump off to Pulau Tekong before circling back to the mainland on Changi East. Proposed reclamation (in yellow) will bury Pasir Ris shores, Pulau Sekudu and Chek Jawa as well as a large amount of shore at Changi Beach.
Posts by others on this trip
By Loh Kok Sheng
By Carol Phillips
By Chong Siew Men
By Jianlin Liu
By Toh Chay Hoon
By Dayna Cheah
By Russel Low
By Adriane Lee
By Richard Kuah
By Lisa Lim.
Lisa Lim also did a lovely video
Others on this trip: Jesselyn Chua.
Meanwhile, elsewhere on the same day
Doreen Foo was at Changi with the NParks intertidal survey