whale shark tenggol | whale shark japan
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding flooring shark and the largest regarded extant fish species. The biggest confirmed individual had a length of 12. 65 m (41. 5 ft) and a weight of about 21. your five t (47, 000 lb).[8] The whale shark holds many records for size in the dog kingdom, most notably being definitely the largest living nonmammalian vertebrate. It is the sole member of the genus Rhincodon and the just extant member of the family Rhincodontidae which in turn belongs to the subclass Elasmobranchii in the class Chondrichthyes. Before 1984 it was classified as Rhiniodon into Rhinodontidae.
The whale shark is found in open waters of the tropical oceans and it is rarely found in the water beneath 21 °C (70 °F).[2] Modeling advises a lifespan of about 70 years, but measurements include proven difficult.[9] Whale sharks have very large mouths and are filter feeders, which is a feeding mode that occurs in only two other sharks, the megamouth shark as well as the basking shark. They supply almost exclusively on plankton and small fishes, and pose no threat to humans.
The species was distinguished in April 1828 after the harpooning of a four. 6 m (15 ft) specimen in Table Clean, South Africa. Andrew Smith, a military doctor associated with English troops stationed in Shawl Town, described it the following year.[10] The name "whale shark" refers to the fish's size, getting as large as some species of whales,[11] and to its being a filter feeder like baleen whales.
Whale sharks have a mouth that can be 1 . 5 meters (4. 9 ft) large, containing 300 to 350 rows of tiny teeth and 10 filter pads which in turn it uses to filter supply.[12] Unlike a number of other sharks, whale sharks' mouths are located at the front of the mind rather than on the underside from the head.[13] Whale sharks have five large pairs of gills. The head is wide and smooth with two small sight at the front. Whale sharks will be grey with a white abdomen. Their skin is noted with pale yellow locations and stripes which are one of a kind to each individual. The whale shark has three visible ridges along its sides. Its skin can be approximately 10 cm (3. hunting for in) thick. The shark has a pair of dorsal bout and pectoral fins. Juveniles' tails have a larger upper fin than the lower b, while the adult tail becomes semilunate. The whale shark's spiracles are just behind its eyes.
The whale shark is the largest non-cetacean canine in the world. The average size of adult whale sharks is predicted at 9. 8 m (32 ft) and on the lookout for t (20, 000 lb).[8] Several specimens over 18 m (59 ft) in length have been reported.[14] The largest verified specimen was caught about 11 November 1949, near Humor Island, in Karachi, Pakistan. It was 12. 65 m (41. 5 ft) very long, weighed about 21. 5 t (47, 000 lb), and had a girth of seven m (23 ft).[8] Stories exist of vastly larger specimens - quoted lengths of 18 m (59 ft) and 45. 5 t (100, 000 lb) are common in the popular literature, but zero scientific records support all their existence. In 1868, the Irish natural scientist Edward cullen Perceval Wright obtained a number of small whale shark specimens in the Seychelles, but claimed to have observed specimens above 15 m (49 ft), and tells of shark specimens surpassing 21 m (69 ft).
Within a 1925 publication, Hugh Meters. Smith described a huge canine caught in a bamboo seafood trap in Thailand in 1919. The shark was too heavy to pull ashore, although Smith estimated the shark was at least 17 meters (56 ft) long, and weighed around 37 to. These measurements have been overstated to 43 t (95, 000 lb) and an even more precise 17. 98 meters (59. 0 ft) nowadays. A shark caught in 1994 off Tainan State, southern Taiwan, reportedly assessed 35. 8 t (79, 000 lb).[15] There have even recently been unverified claims of whale sharks of up to 23 metre distances (75 ft) and 85 tonnes (220, 000 lb). In 1934, a dispatch named the Maurguani came upon a whale shark in the southern Pacific Ocean, rammed this, and the shark became trapped on the prow of the dispatch, supposedly with 4. six m (15 ft) on a single side and 12. two m (40 ft) one the other side of the coin.[16] No trusted documentation exists for these boasts and they remain "fish stories".
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