Tidal Hermit Crab Diogenes sp.
Gigantic Anemone Stichodactyla gigantea
Sand sifting sea star Astropecten polycanthus They undergo pseudo-copulation whereby, one will lie on top of the other and during high tide, they will release the sperm and eggs. The lying on top of one another is said to increase the chance of external fertilization. They have tube feet which help them to move about on the sand.
Banded bead anemone Epiactis sp.
Ovum Cowrie Cypraea ovum When they are alive, they will produce a smooth mucus to cover its mantle, making the mantle smooth and shiny.
Maculated Top Shell Trochus maculatus This is the first time I've seen the top shell, it is highly camouflage in crevices of rocks. It has zig-zag pattern on the underside and white centre.
Another mollusc, also need to new ID chart to ID. =X Purple interior
Cnidarian - looks like another Gigantic Anemone Stichodactyla gigantea
A weird thing in the crevice of the rock. Ron say it's a sea cucumber!
Heart cockle!!!! Corculum cardissa When it is dead, the cockle will open up - 'heart-broken~' They can burrow into the sand, so it is quite hard to find them at times.
Snapping shrimp!!!! Alpheus sp. They are always heard but difficult to spot. They have a symbiotic relationship with the gobies. They share their burrow with the gobies and in return, the gobies act as guards, alerting the half-blinded shrimp when there's danger. The snapping shrimp has an enlarged pincer which makes the snapping sound to stun enemies and preys. Imagine we humans can even the sound, small creatures in the water will definitely be stunned by the loud sound.
Some nice scenery photos of the inter-tidal area!
No comments:
Post a Comment