What a fabulous series of low tide trips we just had! Stingray bite completely healed, I plunged right in. Visiting our shores in the North and South, we encountered lots of our favourite creatures and some that we've never seen before.

"Nemo" or the False clown anemonefishes (
Amphiprion ocellaris) are quite common on our Southern shores. These amusing fishes frolic happily among the stinging tentacles of large sea anemones. They're really tricky to photograph as they're very quick and tend to stir up the sediments in the water. But we found these three fishes stranded in a pool while their anemone home was high and dry. They were patiently waiting for the tide to come back in. Anemonefishes can change sex! Usually, the biggest fish is female. The other fishes that share the same sea anemone are smaller males. If the female dies, the biggest male changes into a female!
Another delightful surprise was the Sea robin or Sea moth (Family Pegasidae), so named for its wing-like pectoral fins. This fish is closely related to seahorses and appears to be seasonally common on our Northern shores. When you see one, you will see several. Then none for a long time.


It was nudibranchs galore! Keen eyes of Super Spotters Chay Hoon and Alvin got us a closer look at a wide variety of these snails without shells. The pajama-striped Armina nudibranchs (
Armina sp.) were seen on both the Northern and Southern shores. One had a blue flap at the front and another a yellow-banded one. Some nudibranchs look boring, like the flat brown one that I saw. I don't encounter it often though, so it was nice to see one.
The Phyllid nudibranchs look like colourful candies with brightly coloured bumps. The one with blue bumps is probably
Phyllidia pustolosa, while the one with orange bumps is probably
Phyllidia varicosa. When we got back, Chay Hoon pointed out that the book indicated that Phyllids are highly toxic and thus not suitable for marine tanks. They can kill off the entire tank!
It was the first time I saw the lemon-yellow
Glossodoris atromarginata with elegant black edged ruffles, thanks to Chay Hoon's keen eyes. These two cuties constantly rotated their feathery gills like helicopter blades!


But for me, it was Echinoderm Week! The sea star is the most familiar of this group of animals. Echinoderms include sea urchins, heart urchins, sand dollars, sea cucumbers, brittle stars and feather stars.
We saw this pretty Rock sea star (
Asterina coronata) under a rock. Usually, this sea star is boring grey and blends right in with the muddy rocks. But this little one was a Real Rock Star in flamboyant orange (cue electric guitar riffs!).
Wai later shared
this endearing rendition of the Rock Star...
We saw not one but TWO different kinds of sea urchins. The white one with purple-banded spines is seldom seen (it's yet to be identified), while the black one (
Temnopleuris toreumaticus) seems to be seasonal, sometimes seen in large numbers on our Northern shores, then none at all.
These tiny red sea cucumbers carpeted the ground in the thousands, infesting seaweed, sponge, rocks and even larger sea cucumbers like the large orange sea cucumber in the photo. The tiny red sea cucumbers don't grow any bigger, and have branched feeding tentacles and miniscule tube feet just like their bigger cousins. Both kinds of sea cucumbers have yet to be identified. The large Blotchy brown sea cucumber (
Actinopyga lecanora) is identified by its white or grey backside. It's only sometimes seen on our Southern shores.

The Find of the Week was this feather star or crinoid. It too is an echinoderm. It is the first time I ever saw one onshore. Usually, we only see them on offshore reefs and those are much smaller. This large one was very much alive and seemed quite happy where it was. This creature has many arms that are highly flexible and have lots of branches along the sides.
Of course, we also saw lots of corals, crabs, fishies, an amazing cuttlefish, a pair of gianormous horseshoe crabs and more. But alas, there's no space to put up all the photos...
The weather wasn't very co-operative in the first few days (as
Tom's post illustrates). And it's getting really hard to get by with two hours of sleep every 8 hours. But it's exhilarating to be out there and I can't wait for the next series of lows!