Small to medium in size, 25-75mm. Largest oyster still has mangrove root stuck to it. Smallest oyster has half of its shell missing. Some purpley colors on them, irridescence, had algae stuck to them. Were growing on a red mangrove root in an intertidal zone.
Found in wrack line near a rocky intertidal zone.
Mussels from here to infinity.
Lots of big thick shells on the beach.
This shows how highly variable the water level in Stewart Creek is. Currently it's dry, but several years ago it was flooded and kayak-able.
Very thin, high domed. About 3/4" in diameter.
Bivalvia is a class of marine and freshwater molluscs with laterally compressed bodies enclosed by a shell in two hinged parts. Bivalves include clams, oysters, mussels, scallops, and numerous other families of shells. The majority are filter feeders and have no head or radula. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment on the seabed, where they are safe from predation. Others lie on the sea...