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Tridacna derasa in a reef aquarium. The southern giant clam is classified as Vulnerable (VU) on the IUCN Red List, [ 1 ] and is listed on Appendix II of CITES . [ 13 ] The southern giant clam is a popular food item and aquarium species, and has therefore been hunted extensively throughout its natural habitat. [ 6 ]
By day, the clams spread out their mantle so that the algae receive the sunlight they need to photosynthesize, whereas the colour pigments protect the clam against excessive light and UV radiation. Adult clams can get most (70–100%) of their nutrients from the algae and the rest from filter feeding. [12] When disturbed, the clam closes its shell.
Tridacna crocea, the boring clam, crocus clam, crocea clam or saffron-coloured clam, is a species of bivalve in the family Cardiidae. It is native to the Indo-Pacific region. It is occasionally found in the aquarium trade [4] where it is often simply referred to as crocea. [5]
The creature in the video is a Pacific razor clam, though it looks enough like a geoduck to befuddle even a knowledgeable biologist: Digging into wet sand is a survival technique for the critter, ...
The maxima clam (Tridacna maxima), also known as the small giant clam, is a species of bivalve mollusc found throughout the Indo-Pacific region. [3]They are much sought after in the aquarium trade, as their often striking coloration mimics that of the true giant clam; however, the maximas maintain a manageable size, with the shells of large specimens typically not exceeding 20 centimetres (7.9 ...
Mantle of giant clam with light-sensitive spots, which detect danger and cause the clam to close. Tridacna gigas, the giant clam, is the best-known species of the giant clam genus Tridacna. Giant clams are the largest living bivalve molluscs. Several other species of "giant clam" in the genus Tridacna are often misidentified as Tridacna gigas.
Tridacna squamosa, known commonly as the fluted giant clam and scaly clam, is a species of bivalve in the family Cardiidae. [ 1 ] [ 3 ] It is one of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian Oceans .
Ctenoides ales is a species of saltwater clam, a marine bivalve mollusk in the family Limidae, the file clams. [1] It is known by the names electric flame scallop, disco scallop, electric clam and disco clam. The clam has been given these nicknames because its soft tissues flash light like a disco ball.