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有关太平洋绿海龟的资料

(一)形态特征

海龟属龟鳖目，体长1～1.3米，体重大于100千克，体型巨大，四肢桨状，适于划水。龟头背面有前额鳞1对，背甲盾片相间排列。颈盾板短而宽，椎盾5枚，助盾4对。前肢较后肢短小。背面棕色或橄榄色，腹面黄色。

(二)食性

以鱼类、海藻、甲壳类、头足类软体动物为食。

(三)生殖

每年6～9月，海龟湾便有成群绿海龟回游来此，上岸产卵。每当夜深人静，雌龟便慢慢地爬上沙滩，在不被水淹的高潮线上，找到合适地点，挖出一个宽大的坑，才开始产卵，每次产卵50～200多枚(图2)。产完用沙土覆盖，龟卵在温暖潮湿的沙滩里自然孵化，经过49～60天，幼海龟例破壳钻出，爬入大海。保护区工作人员帮助幼龟回归大海(图3)，海龟为国家二级保护动物，也是国际上重点保护动物。

(四)经济价值

海龟的经济价值很高，龟肉鲜美、营养丰富，龟板、血及胆汁均入药，目前被列为抗癌食品之一，开发前景十分广阔。

(五)绿毛龟的品种

1、青龙戏水：龟的头部、四足、背甲、腹甲、尾部都长有绿毛。

2、五子夺魁：龟的头部、四足、背甲、腹甲长有绿毛，虽比青龙戏水略差一筹，但仍属罕见，活的珍宝，极为名贵。

3、牡丹头：仅龟的头顶部长有绿毛，为名贵品种。

4、天地缨：龟的背甲、腹甲长有绿毛，在水中，似一团绿绒球。

5、天缨：龟的背甲上长有绿毛。

6、双缨：龟的两只前足或后足长有绿毛。

7、三点缨：龟的三只足上长有绿毛。

8、器缨：四只足上长有绿毛。

9、吕缨：龟的头、尾长有绿毛。

10、品缨：龟的头部和两只前足长有绿毛。

11、胡子缨：脸颊或上下颌长有绿毛，一般不多见。

12、长毛缨：毛长超过35厘米，称长毛绿毛龟。

(六)绿毛龟的选择

1、金寿绿毛龟：外贸出口品种。

2、麒麟龙尾绿毛龟：孔雀斑绿毛龟、金线绿毛龟为龟中极品。

世界现存海龟共7种，在中国海域栖息的有绿海龟、螺龟、太平洋丽龟、棱皮龟、玳瑁五种，以绿海龟最多，其余已很稀少。

头顶有两对前额鳞，上颌钩曲。背面的角质板覆瓦状排列，随着年龄增长而渐趋平铺状，表面光滑，具褐色和淡黄色相间的花纹，四肢呈鳍足状。前肢较大，有两爪，后肢短小，仅具一爪。尾短小，通常不露出甲外。性强暴，以鱼、海藻为食。卵可食；角质板可制钮扣、眼镜框或装饰品；中医学上以甲片入药，性寒、味甘，功能清热解毒，定惊，主治热病发狂、小儿惊风、痈肿疮毒等症。

绿海龟资料

Green sea turtle Ecology and Life History Habitat Green turtles usually inhabit shallow waters associated with seagrass beds.[7] Seagrass meadows within inshore bays

lagoons and shoals are mon locations where Chelonia mydas can often be found. This particular species is known to be very selective about their feeding and mating sites and entire generations will often alternately migrate beeen the same feeding and nesting areas.[2] Life History Unlike most sea turtles

which spend most of their *** lives in the ocean

Pacific green turtles are known to willingly crawl onto secluded beaches during the day to bask in the sun.[5] Green turtles migrate long distances in-beeen their chosen feeding sites and the isolated islands from which they were hatched. Mature turtles will often return to the same exact beach from which they hatched from. Individual turtles will usually mate every o to four years.[5] Mating seasons vary beeen populations

but for C. mydas in the Caribbean

mating season is from June to September.[2] Green turtles reproduce in the typical way that marine turtles do so. After a lengthy mating ritual in the water

the females haul themselves onto the beach above the high tide line. Upon reaching a suitable nesting site

the gravid female then digs a hole with her hind flippers and deposits a number of eggs in the nest. The number of eggs laid per litter depends on the age of the female and differs from species to species

but C. mydas clutches range beeen 100 to 200 eggs. After laying eggs

the female then covers the nest with sand and returns to the sea.[5] After around 45 to 75 days

the eggs hatch. As with other marine turtles

C. mydas eggs hatch during the night and the newly-emerged turtles head directly towards the water's edge. This undoubtedly is the most dangerous time in a turtle's life

as the hatchlings make their way to the water

various predators such as gulls and crabs pick off many turtles. A significant percentage of turtle hatchlings never make it to the ocean. Just like other sea turtles

little is known of the life history of juvenile green sea turtles. It is speculated that they take enty to fifty years to reach mature size.[2] Etymology and Taxonomic History The species was originally described by Linnaeus in 1758 as Testudo mydas.[10] In 1868

Bocourt described a particular species of sea turtle as Chelonia agassizi (and Chelonia agassizii - both were once valid names). [11] This "species" was referred to as the black sea turtle.[12] These o separate species were then united in the same species

Chelonia mydas and were given subspecies status. C. mydas mydas referred to the originally described population while C. mydas agassizi referred to the Pacific population.[13][14] This subdivision was later determined to be invalid and all members of the species were then designated Chelonia mydas.[1] The green sea turtle was so named because of the green color of its body fat. The *** turtle's algae diet is responsible for the color in its tissues. Some debate exists about whether the Black Sea Turtle (Chelonia agassizi) is actually a separate species (bringing the total to 8)

or a subspecies of the Green Sea Turtle. Black Sea Turtles are very similar to Green Sea Turtles

but are somewhat darker and *** aller as a group. The habitat of this proposed species lies along the Pacific coast of Central America and northern South America.

参考: Wikipedia

Green sea turtle From Wikipedia

the free encyclopedia Jump to: navigation

search Green sea turtle Binomial name Chelonia mydas (Linnaeus

1758) This page redirects from Chelonia

which is the genus name of this turtle

but has also been used for the order Testudines of all turtles and tortoises. Chelonia mydas

more monly known as the green sea turtle

is a large sea turtle belonging to the family Cheloniidae. It is the only species in the genus Chelonia.[1] [edit] Anatomy and Morphology Carapace scalation of C. mydas.The appearance of the green sea turtle is that of a typical sea turtle. C. mydas has a dorso-ventrally flattened body

a beaked head at the end of a short neck

and paddle-like arms well-adapted for swimming.[2] Unlike the closely-related hawk *** ill turtle

the green sea turtle's snout is very short and its beak is unhooked. The horny sheath of the turtle's upper jaw possesses a slightly-denticulated edge while its lower jaw has stronger

more defined denticulation. The dorsal surface of the turtle's head has a single pair of prefrontal shields. Mature C. mydas front appendages have only a single claw (as opposed to the hawk *** ill's o)

although a second claw is sometimes prominent in young specimens. The carapace of the turtle is known to have various color patterns that change over time. Hatchlings of C. mydas

like those of other marine turtles

have mostly black carapaces and light-colored plastrons. Carapaces of juveniles are dark brown to olive

while those of mature *** s are either entirely brown

spotted or marbled with variegated rays. Underneath

the turtle's plastron is hued yellow. C. mydas limbs are dark-colored and lined with yellow

and are usually marked with a large dark brown spot in the center of each appendage.[3] The green sea turtle is known to grow up to one and a half meters long. While individuals have been caught that reached weights of up to 315 kilograms

average weight of mature individuals is around 200 kilograms. The largest Chelonia mydas ever recorded weighed 395 kilograms (871 lbs.)[4] The species is known to live up to eighty (80) years in the wild.[5]

参考: en. *** /wiki/Green_sea_turtle

绿蠵龟档案 学 名： Chelonia mydas 俗 别 名： 绿海龟、海龟、石龟 英 名： Green sea turtle The shape characteristic o sides have 4 piece of shields boards

assumes

slightly has the motley pattern

a forehead scale only pair

the foreleg has a pair of fingernail. The back head of a jia amounts to 153 centimeters

because his/her the body fat is the green

therefore calls the green turtle. Minister has the lamella

necking in when can catch

therefore is unable pletely to shrink in the shell. Its abdomen assumes the yellow

the young turtle needs the 10~20 year only then to reach the mature stage

Cheng Kueit'i about the long approximately 120~150 centimeter

body weight approximately 120 kilograms. The ecology habit is the swimming master

the large-scale migration sea turtle

can look for food in the fixed region

and spawns in another. Take the seaweed as the staple food

occasionally also eats the mollusk

the arthropod or the fish. Often in is covered with the seaweed the shallow sea area to take in food

the young turtle leaning meat

after grows up bees omnivorously

is in the sea turtle only takes in food more seaweeds' type

also is only can e ashore exposes to the sun solar the type. The female turtle each 2~3 year spawns a time

each reproduces Ji K'och'an the 3~7 nest egg

each nest 100~150 egg. Each only female turtle needs the ability which the 15~50 year only then has spawns

also must be higher than in 25 degrees centigrade sand beaches in the temperature to be able 够 to spawn. Roosts distributes mainly in the equator

subtropics coast sand beach temperature and so on mainland coast

islands is higher than 25 degrees centigrade places to spawn. Are most for the present world quantity

also is nearby Taiwan the sea area mon sea turtle type

Taiwan's Penghu looks the peaceful islet

has planned establishes the green turtle protectorate.

绿海龟怎么养

人工饲养的绿海龟要注意食物的供给数量和提供一个适宜生活环境。

1、绿海龟的食物

绿海龟的食物主要是海草以及藻类，绿海龟在游泳的时候，阻力要比在陆地上大很多，就需要更多的能量来供给它，所以食量也就比陆地上面的龟大很多，每天都要吃大量 得鱼，虾，甲壳类，软体动物以及大叶藻。

但是它对与恶劣的环境有着很强的耐性，就算是水质有了严重的污染，或是食物很缺乏 得时候，它们都能正常的生活，但是生长就会停滞，也就会减退它们的额血红素。

野生的海龟主要是以海藻为食的，也吃鱼，虾等，幼体主要是吃肉食的，海龟的食量很大，饲养时，饲料必须要充足，尤其是在它们幼体的时候。

2、适宜绿海龟生活环境

饲养的海龟，首先要给他们一个大点的鱼缸，或者是其它的容器，饲养的容器越大越好的，长度最好是有龟甲长度得2至3倍，宽度最好是龟甲宽度的2至3倍，水质也是很重要的，可以用人工的海水，不过，最好的还是请专业的鱼店师傅上门进行调配，还有人用的是天然的海水。

3、足够的氧气

在饲养海龟的时候，过滤系统也直接影响海龟的生存，最好是选择上部=式过滤，而且过滤槽必须得大一点，另外水中 得氧气量也必须要足，最好加上氧气泵，照明的话，最好添上一根=紫外线的杀菌灯。

扩展资料

绿海龟是体型最大的硬壳海龟之一。因其身上的脂肪为绿色而得名。它的身体庞大，体长80-150厘米，体重65-136千克。最大的背甲长可达153厘米，体重250千克。

外被扁圆形的甲壳，只有头和四肢露在壳外，头部略呈三角形，前额长有鳞片，仅一对，为暗褐色；缩头时会被卡住，因此无法把头完全缩进壳里。两颊黄色，颈部深灰色。

绿海龟终生栖息水中。而海龟在海中的分布与水深有密切关系，大多集中於0-50米深的水域。根据研究发现，海龟於海域中的分布主要是在靠近洋流边缘且接近岸边的水域，於洋流主轴中的并不多。另外海龟本身的摄食习性、产卵活动亦会影响海龟的分布。

海水的温度及深度也是影响的环境因子，海龟会选择靠近岸侧，水温较高，水深较浅的大陆棚海域，且此处的食物亦较充足。

参考资料来源：百度百科-绿海龟

参考资料来源：百度百科-绿缘海龟

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