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The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
The dugong, a vulnerable marine mammal, is the flagship mammal of the park. It is an important habitat for the cetaceans : Indo-Pacific bottlenose dolphin , finless porpoise , spinner dolphin , [ 12 ] common dolphin , [ 13 ] Risso's dolphin , melon-headed whale , and dwarf sperm whale . [ 14 ]
Dugong skeleton displayed at Philippine National Museum. Dugongidae's body weight ranges from 217 to 307 kg for juveniles, 334 to 424 kg for subadults, and 435 to 568.5 kg for adults. Oral temperatures for individual dugongs is determined from 24° to 34.2 °C. Heart rate readings are from 40 to 96 bpm and vary between individual dugongs.
A fossil reveals how a now-extinct species of dugong was swimming in the sea about 15 million years ago when it was preyed upon by a crocodile and a tiger shark.
Endangered species include dolphins, dugongs, whales, and sea cucumbers. [1] In 1986, a group of 21 islets lying off the Tamil Nadu coast between Thoothukudi and Dhanushkodi was declared the Gulf of Mannar Marine National Park. The park and its 10 km (6.2 mi) buffer zone were declared a Biosphere Reserve in 1989.
The family has one surviving species, the dugong (Dugong dugon), one recently extinct species, Steller's sea cow (Hydrodamalis gigas), and a number of extinct genera known from fossil records. Subcategories
16 Other references. 17 External links. Toggle the table of contents. ... Dugong (Dugong dugon) (Muller, 1776) Order: Proboscidea. Family Elephantidae: elephants
Marine National Park of Gulf of Kutch is a fragile ecosystem. [11] In recent years, biodiversity of marine park has been under threat due to extraction of corals and sands by cement industries, increased turbidity of water, oil refineries, chemical industries and mechanised fishing boats. [1]