|Living sandy shores of Cyrene Reef.|
One of the typical burrows seen on the high shore are these deep and large holes made by Ghost crabs (Ocypode cerathophthalmus).
Sand bubbler crab (Scopimera sp.) that sifts through sand grains for edible bits.
Soldier crabs (Dotilla sp.). When the tide comes in, they seal up the burrow to hide from predators that forage at high tide.
fiddler crabs (Uca spp.) also make little sand balls and they are much easier to spot. A suitable sandy shore can be home to hundreds of these delightful animals.
Sand stars can be common on some of our sandy shores: The Plain sand star (Astropecten sp.) and the Painted sand star (Astropecten sp.).
|Here we can see signs of sea stars, a sand dollar and a buried worm,|
as well as lots of bumps made by other tiny buried animals.
Cake sand dollar (Arachnoides placenta). Less commonly seen is the larger Keyhole sand dollar (Echinodiscus truncatus). And rarely seen is the Laganum sand dollar (Laganum depressum).
Bonnet snails (Family Cassidae) that feed on them!
Ball sea cucumbers (Phyllophorus sp.) and Smooth sea cucumbers. Found on many of our shores often near reefs, is the spotted Remarkable sea cucumber (Holothuria notabilis).
heart urchins that burrow deep in the sand. Just because we don't see them, doesn't mean they're not there!
Bazillion snails (Batillaria zonalis) can appear in vast numbers, leaving trails all over the sandy shore.
sand collars, the egg mass created by mama moon snails!
Moon snails (Family Naticidae) that we might see on a sandy shore! Some of these seem to be seen only on sandy shores near reefs.
Button snails (Umbonium vestiarum) are only found in clean sand. In suitable areas, they can occur in large numbers. These snails come in a bewildering variety of patterns. No two button snails are alike!
Olive snails (Family Olividae).
turrid snail (Family Turridae), the Clear sundial snail (Architectonica perspectiva), the Fig snail (Ficus variegata) and the Tun snail (Family Tonnidae).
Peachia anemone (Peachia sp.) and some other interesting, yet-to-be identified burrowing anemones.
Acorn worm (Class Enteropneusta). Others live in tubes.
|Shorebird prints around an upturned sand dollar|
that looks like it has been pecked.
during a Mega Marine Survey were tiny yellow eggs of horseshoe crabs! It appears, horseshoe crabs may only lay eggs in sandy areas in the mangroves. When the little horseshoe crabs hatch, they grow up in the shelter of seagrass meadows. The adults then roam the mangroves and mudflats. This is one example of how marine creatures need a variety of adjacent marine ecosystems to thrive. From sandy shores to mangroves, seagrass meadows to reefs, the different kinds of ecosystems are important for a healthy and rich marine environment.
Charles Rowe's recent presentation that the Seacil Project used 'beach sand' i.e., sand from Labrador Beach, to make the concrete for the Seacils (I presume the photo below shows the Seacil team shovelling sand from the beach to create the Seacils). Charles Rowe said about half a ton of sand is used for each Seacil. So for the 50 Seacils eventually placed at Labrador, possibly about 25 tons of sand was removed from Labrador's shore.