Another New Star Found on Semakau

We found another yet to identified sea star in Semakau!
This new sea star looks very similar to Knobbly (Protoreaster nodosus) but without the distinctive red or orange colour. Could this be another Pentaceraster sp. sea star?

More Knob at Changi!!!

After yesterday a very fruitful trip to St John Island. Is so happy to see more 'Knob' on Changi beach. We saw 3 baby 'knobly' sea star this morning.
We saw one of this 'usual' knobbly sea star, similar to the one used to see at Semakau.
We also saw 2 of this green coloured 'Knobbly' sea star. This is my 2nd time seeing these sea star. I first saw it last month and I have still no clue if this is another new sea star or are they the same knobbly (Protoreaster nodosus) sea stars??

I also saw a Stargazer with the head as big as a bowl!!! I will post it later when I've processed all the photos. Is been an amazing week so far. Hope to see more biodiversity for the next 2 days!

Predator or Disease?

During our recent walk at Semakau, noticed that strange things is happening on the Knobbly Sea Star. The sea star either experiencing some disease or some other predator are preying on them.These are the Knobbly that we found on our last week walk at Semakau. After examing the photos, The Knobbly that we found on 28 & 30 could be the same one. The specimen found on the 29 is really in a horrible state. All the five limbs are either bitten off or due to parasite.Photo on top showing missing 'knob' and the open wounds.

This photo show a different conditions of the wounds. These on looks like marks leave behind by predator.... We have no clue on what is happening. Ron was saying could be due to giant puffer fish... some of the wounds looks like sign of parasite of flesh eating bug may be??

Whatever is it, it certainly not a good sign. Anyone ever encounter this before and would like to share?