It has been a long 4 years since I have last surveyed the coral rubble of Chek Jawa. Thanks to NParks for permission and support for us to carry out low spring tide surveys of Chek Jawa, we were able to document the shore on this 1 am trip last Sunday morning.
Pink flowery soft coral (Family Nephtheidae) below the beacon and couldn't really find the other usual other reefy organisms such as the Boulder Pore corals (Porites sp.) that can be found on the coral rubble. There is also a sea fan below the beacon but it looks half dead. I am guessing that it is because the water was not low enough for us to look at the area properly.
Blue jorunna sponge (Neopetrosia sp.) and I took this photo with Ivan in it so that you can tell its size.
Lined chromodoris nudibranch (Chromodoris lineolata).
Hypselodoris kanga nudibranch and this is my second time seeing it! One of the identifying features of this slug is that it has yellow dots on its flowery gills.
Black prickly nudibranch (Atagema intecta) that looks like a lump of black stuff can be quite well camouflaged as they are usually found among rocks and rubble.
Emerald Stiliger slug (Stiliger smaragdinus) was found. This slug is usually found among the Caulerpa seaweed.
Red-tipped flatworm (Pseudoceros bifurcus), Blue-spotted flatworm (Pseudoceros indicus) and also the Purple-spotted yellow flatworm (Pseudoceros laingensis).
Brown striped flatworm (Pseudobiceros gratus) that we don't often see on northern shores.
Fine-lined flatworms are not commonly found on our northern reefs, it seems that this flatworm is in season as we saw quite a number of them.
we saw at one of the sea walls of East Coast in the past.
Pencil squid (Family Loliginidae) that is usually found at night such as this predawn trip. It was quite huge!
Haddon's carpet anemones (Stichodactyla haddoni)! Good to see that they are thriving well.
Swimming anemones (Boloceroides mcmurrichi)!
Coin seaweeds (Halimeda sp.).
Blue-spotted fantail rays (Taeniura lymma) that are commonly found on our southern reefs.
Knobbly sea star (Protoreaster nodosus) among the seagrass.
Eight-armed sand star (Luidia maculata). The rest of the team also saw another one.
Biscuit stars (Goniodiscaster scaber) and Cake sea stars (Anthenea aspera) that we decided to put some together for this family shot haha!
Scaly sea star (Nepanthia belcheri).
Spiny sea star (Gymnanthenea laevis) was with orange tips on its arms was also sighted. Good to see a healthy representation of the sea stars on the coral rubble.
Sand stars (Astropecten sp.) were out in full force.
Haddon's carpet anemones (Stichodactyla haddoni) are found on the sand bar.
Cerianthids (Order Ceriantharia) that look like flowers of the shore.
Garlic bread sea cucumbers (Holothuria scabra) are active at night and I saw far lot more of these cucumbers on Chek Jawa than on Changi. This is probably because that this shore is far more inaccessible and that no one is supposed to go down to the shores as access is restricted.