The highest threat of extinction is faced by the only truly gigantic giant clam species, Tridacna
gigas, according to findings by the research team.
This study assessed whether morphologically distinct Tridacna
maxima and Tridacna
noae from New Ireland Province, Papua New Guinea (PNG), can successfully cross-fertilize to produce hybrid juveniles.
Thick sections were prepared from two specimens of Tridacna
Spawning, development and acquisition of zooxanthellae by Tridacna
squamosa (Mollusca, Bivalvia).
The largest species, Tridacna
gigas, grows over a period of several decades to nearly 5 feet in length, with a shell that can weigh more than 400 pounds.
Some favored species, such as giant clams, Tridacna
3-centimeter long Tridacna
gigas and the shortest is a 3-cm juvenile.
ABSTRACT This paper reports on embryonic and larval development of the giant clam Tridacna
Cobaltocalcite * FTIR spectroscopy of melee diamonds * Irradiated color-change diamonds * Diamond in diamond * Tridacna
shell in imitation pearls * Large quahog pearl * HPHT synthetic diamond melee in high-end jewelry * Large HPHT synthetic diamonds * Synthetic moissanite melee in colored diamond bracelet.
It is unclear whether the alleged broken Tridacna
shell adze from Potusa (Janetski 1980: 123-124) is actually an adze; the only other reported shell adze is a small example, probably Cassis shell, from To'aga (Kirch 1993: 158).
Growth and survival during the ocean-nursery rearing of giant clams, Tridacna
Reef location consists of a submerged atoll lying approximately 38.