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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.
Care Level Description Max size Atlantic Thorny oyster: Spondylus americanus: Spondylus americanus: 10 cm (3.9 in) Bear paw clam: Hippopus hippopus: Blue clam, Boring clam: Tridacna crocea: Yes: 15 cm (5.9 in) China clam: Hippopus porcellanus: Electric flame scallop: Ctenoides ales: Yes: Flame scallop: Ctenoides scaber: Yes: 3 in (7.6 cm ...
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 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 ...
Sometimes the giant clams are still treated as a separate family Tridacnidae, [1] but modern phylogenetic analyses included them in the family Cardiidae as a subfamily. [2] [3] Two recent genera and eight species are known: Hippopus—2 species; Tridacna—10 species; Recent genetic evidence has shown them to be monophyletic sister taxa. [4]
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 .
Sinonovacula constricta, the constricted tagelus, Chinese razor clam or Agemaki clam, is a commercially important species of bivalve native to the estuaries and mudflats of China and Japan. It is extensively aquafarmed in China and other countries, with 742,084 tons worth US$667,876,000 harvested in 2008. [3] Salt-baked Duotou clams, a famous ...