Whale shark habitat | whale shark palawan

Whale shark habitat | whale shark palawan

Distribution and habitat

 

The whale shark inhabits every tropical and warm-temperate waters. The fish is mostly pelagic, living in the open sea but not in the better depths of the ocean, although it is known to occasionally dive to depths of as much as you, 800 metres (5, nine hundred ft).|17| In season feeding aggregations occur by several coastal sites like the southern and eastern parts of South Africa; Saint Helena Tropical island in the South Atlantic Marine; Gulf of Tadjoura in Djibouti, Gladden Spit in Belize; Ningaloo Reef in Western Australia; Kerala|18|, Lakshadweep, Gulf of Kutch and Saurashtra coast of Gujarat in India;|19| Útila in Honduras; Southern Leyte; Donsol, Pasacao and Batangas in the Dubai; off Isla Mujeres and Isla Holbox in Yucatan and Bahía de los Ángeles in Baja California, México; Maamigili island, Maldives; Ujung Kulon National Park in Indonesia; Cenderawasih Bay Domestic Park in Nabire, Papua, Indonesia; Flores Island, Dalam negri; Nosy Be in Madagascar; away Tofo Beach near Inhambane in Mozambique; the Tanzanian islands of Mafia, Pemba, Zanzibar; Gulf of Tadjoura in Djibouti, the Advertising Dimaniyat Islands in the Gulf of mexico of Oman and 's Hallaniyat islands in the Arabian Sea; and, very rarely, Eilat, Israel and Aqaba, The nike jordan. Although typically seen precisely what is, it has been found closer to terrain, entering lagoons or coral atolls, and near the jaws of estuaries and rivers. Its range is generally limited to about 30° latitude. It is capable of diving to depths of at least 1, 286 m (4, 219 ft),|20| and is migratory.|9| On 7 February 2012, a large whale shark was found floating 150 kilometres (93 mi) off the seacoast of Karachi, Pakistan. The size of the specimen was considered between 11 and doze m (36 and 39 ft), with a weight of around 15, 000 kilogram (33, 000 lb).|21|

 

 

In 2011, more than 400 whale sharks gathered off the Yucatan Coast. It was one of the major gatherings of whale sharks recorded.|22| Aggregations in that area are among the most reliable seasonal gatherings praised for whale sharks, with good sized quantities occurring in most years among May and September. Linked ecotourism has grown rapidly to unsustainable levels.|23|

Neither of them mating nor pupping of whale sharks has been witnessed.

 

The capture of a female in July 1996 that was pregnant with 300 pups indicated whale fishes are ovoviviparous.|9||24||25| The ova remain in the body and the females give birth to live adolescent which are 40 to sixty cm (16 to twenty-four in) long. Evidence implies the pups are not every born at once, but rather women retains sperm from one mating and produces a steady stream of pups over a prolonged period.|26| They will reach sexual maturity at around 30 years and their lifetime is an estimated 70|9| to 100 years.|27|

 

On 7 March 2009, marine scientists in the Israel discovered what is believed to be the smallest living specimen of the whale shark. The young shark, measuring only 38 cm (15 in), was found with its tail tied to a stake at a seashore in Pilar, Sorsogon, Thailand, and was released into the untamed. Based on this discovery, some scientists no longer believe this area is just a feeding ground; this website may be a birthing place, as well. Both young whale sharks and pregnant females have been seen in the oceans of Saint Helena inside the South Atlantic Ocean, wherever numerous whale sharks can be spotted during the summer.

The whale shark is a filtration feeder - one of simply three known filter-feeding shark species (along with the basking shark and the megamouth shark). It feeds on plankton including copepods, krill, fish eggs, Christmas Island crimson crab larvae |30| and small nektonic life, such as small squid or fish. It also provides nourishment to on clouds of eggs during mass spawning of fish and corals.|31| The many rows of vestigial teeth play no part in feeding. Feeding takes place either by ram filtration, in which the animal opens its mouth and swims ahead, pushing water and food into the mouth, or by active suction feeding, in which the creature opens and closes it is mouth, sucking in volumes of prints of water that are after that expelled through the gills. In both cases, the filtration system pads serve to separate food from water. These unique, black sieve-like structures will be presumed to be modified gill rakers. Food separation in whale sharks is by cross-flow filtration, in which the water trips nearly parallel to the filtration pad surface, not perpendicularly through it, before moving to the outside, while denser food particles continue to the back in the throat.|32| This is an extremely efficient filtration method that minimizes fouling in the filter pad surface. Whale sharks have been observed "coughing", presumably to clear a build-up of particles from the filter pads. Whale sharks move to feed and possibly to breed.

2019-01-09 9:38:32

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