Every year towards December and January, it is likely to come across news on floods in Johor and other parts of Malaysia. It was the flood of Dec 2006 and Jan 2007 that lead to a mass mortality of marine invertebrates in Chek Jawa. To find out more on what happened back then, you may read my blog post on What caused the mass death here.
On Dec 2013, we read news of yet more flood in Johor and therefore it is imperative for us to do a check on whether the outflow of freshwater into the Johor Straits have any impact on Chek Jawa.
Haddon's carpet anemones (Stichodactyla haddoni) are still doing well. Most of them that I saw on the trip were healthy, not showing any signs of distress. I only came across one or two of them that does not look good.
Pink warty sea cucumbers (Cercodemas anceps).
Biscuit stars (Goniodiscaster scaber), Sand stars (Astropecten sp.) and Cake sea stars (Anthenea aspera)! What a delight to see them.
Garlic bread sea cucumber (Holothuria scabra). It could be a different morph of the same species or yet another species altogether.
Purple foot nudibranch (Atagema spongiosa).
Actinocyclus nudibranch (Actinocyclus sp.) since 2009 and was elated to see it at Chek Jawa. This slug is usually seen at Tuas.
Paper bubble snail (Hydatina sp.)! This is such an elegant creature!
Denison's nudibranch (Dendrodoris denisoni), Black prickly nudibranch (Atagema intecta), Hypselodoris nudibranch (Hypselodoris sp.) and the Beaded nudibranch (Hoplodoris nodulosa).
Spiny sea stars (Gymnanthenea laevis), Scaly sea stars (Nepanthia belcheri), Eight-armed sand star (Luidia maculata), Biscuit star (Goniodiscaster scaber) and Cake sea stars (Anthenea aspera).
Knobbly sea star (Protoreaster nodosus) and was relieved to find one adult individual.
Spiky flowery soft corals (Stereonephthya sp.)! Where are they?
Tiny colourful brittle stars (Ophiothela danae) that live on the Pink flowery soft corals (Family Nephtheidae).
Little ruby flatworms (Phrikoceros baibaiye)! There was an explosion of these flatworms and we found them in great numbers on this trip. Looks like they are in season.
There is actually another flatworm in this photo found on the pillar. Can you spot it?
Blue-spotted flatworm (Pseudoceros indicus), Brown striped flatworm (Pseudobiceros gratus), Fine-lined flatworm and the Blue-lined flatworm (Pseudoceros
Delek air (Memecylon edule), an endangered tree found near the cliff of Chek Jawa.