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Turtle has a pair of front legs in the form of leg rowers who gave him agility swim in the water. Although the rest of his life wandering in the water, an occasional animal vertebrate groups, the class of reptiles that still have to occasionally rise to the surface of the water to take a breath. That's because turtles breathe with lungs. Turtles are generally migrate long distances with a time not too long. Distance of 3,000 kilometers is within 58-73 days.
Laying period
Turtle nesting cycle ranging from 2-8 years. While the male turtle spent his entire life at sea, stopping occasionally to the mainland females to lay eggs. Turtle females like the deserted sandy beaches of humans and other sources of noise and light as a place to lay eggs, amounting to hundreds of it, in a hole dug with a pair of legs behind him. At the time of landing to lay eggs, disturbance in the form of light or sound to make turtles out the attack and returned to the sea.
Turtles that hatch in Indonesian coastal waters is found in the vicinity of the Hawaiian Islands. Turtle is known to be loyal to his birthplace.
Not much regeneration produced a turtle. Of the hundreds of eggs released by a female turtle, at most only a dozen hatchlings (baby turtles) who made it to the sea again and grow up. It did not take into account the factor of hunting by humans and their natural predators such as crabs, birds and rodents on the beach, as well as the big fish so it touched the waters of the hatchlings.
In these places are popular as a place of sea turtles lay eggs normally hatch of the station is now built to help improve the survival rate (survival). In Indonesia, for example, there are hatching station at:
* South Coast of West Java (Pangumbahan, Cikepuh KSPL Chelonia UNAS)
* Bali's southern coast ( Kuta)
* Central Kalimantan (Branch River FNPF)
* Lombok's south coast
* East Java (Alas Purwo)
* Bengkulu (Muko-Muko ilir Fracture)
Type of Turtle
In today's world there are only seven species of sea turtles that still survive, namely
* ridley turtles (Lepidochelys olivacea)
* leatherback turtles (Dermochelys coriacea)
* Turtle flat (Natator depressus)
* crock Turtle (Caretta caretta)
Of the seven species, the Kemp's Ridley turtles just are not ever recorded was found in Indonesian waters.
Of these species, leatherback turtles are the largest size reached 2.75 meters in length and weighs 600-900 pounds. Ridley turtle is the smallest, weighing about 50 kilograms. However Accordingly, the species most commonly found are the green turtle.
Turtles, especially green sea turtles, is a plant-eating animals that occasionally prey on some small animal.
Conservation issues
In the report of Conservation International (CI), which was announced at the 24th annual symposium on sea turtle conservation efforts in Costa Rica mentioned, the number of leatherback turtles come down from about 115,000 adult females to less than 3,000 head since 1982. Leatherback turtles has declined 97% within 22 years. In addition, five species of turtle are also at risk of extinction, although not in such a short period of leatherback turtles.
Almost all species of sea turtles belong to the list of animals protected by national laws and international because it was feared would become extinct due to the fewer and fewer in number. In addition to the leatherback turtle, two other species, Kemp's Ridley turtle and Hawksbill turtles are also classified as critically endangered by The World Conservation Union (IUCN). Green turtle (Chelonia mydas), hawksbill turtle cracked or gray (Lepidochelys olivacea), and jars or loggerhead turtles (Caretta caretta) are classified as threatened with extinction. Only the flat turtle (Natator depressus), which is not expected to be threatened.
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