Giant Clam: Bivalvia, Mollusca, Coral, Pacific Ocean, Indian Ocean, Clam, Reef, Pearl of Lao Tzu, Plankton, Sessility (zoology), Mantle (mollusc), Tissue (biology), Habitat,Symbiosis, Dinoflagellate
 |
|
Описание:
The giant clam, Tridacna gigas, or traditionally, pa?ua, is the largest living bivalve mollusk. Tridacna gigas is one of the most endangered species amongst the clams. It was mentioned as early as 1825 in scientific reports.Giant Clam One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than 200 kilograms (440 pounds), measure as much as 1.2 metres (4 feet) across, and have an average lifespan in the wild of 100 years or more. They are also found off the shores of the Philippines, where they are called taklobo. T. gigas lives in flat coral sand or broken coral and can be found at depth of as much as 20 meters. Its range covers the entire Indo-Pacific, but populations are diminishing quickly and the giant clam has become extinct in many areas where it was once common. T. maxima has the largest geographical distribution of the giant clam species; it can be found in high- or low-islands, lagoons, or fringing...Похожие книги
 | Following the Money: The Enron Failure and the State of Corporate Disclosure Автор: George J. Benston, Michael Bromwich, Robert E. Litan, Alfred Wagenhofer Год: 2003 |
 | Algiers Год: 2011 |
 | Cinema of Japan Год: 2011 |
 | Chicago Transit Authority Год: 2011 |
 | Cantarell Field Год: 2011 |
 | Biddeford, Maine Год: 2011 |