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Green Sea Turtle Chelonia mydas. By: Aleshia Miklas. Summary. - PowerPoint PPT Presentation
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Green Sea TurtleChelonia mydas
By: Aleshia Miklas
SummaryThe green sea turtle is one of the largest and
most widespread of all the marine turtles. These marine animals inhabit tropical and subtropical waters. Green sea turtles have an oval shell that is olive to brown and grey to black. So where do they get their name from? The green color of the fat and connective tissues of this species. When it comes to what these creatures eat they are herbivores, meaning they eat plants. Green sea turtles can grow to lengths of 80-150 cm and weigh 65-136.2 kg. The male turtle will be smaller than the female though. That is some common knowledge on the green sea turtle.
Anatomy Green sea turtles have an oval carapace or shell that
is olive to brown, grey and black with bold streaks and blotches.
The plastron, or under shell is pale yellow or orange. They have a small and blunt head with a serrated jaw. Their body is nearly oval and a beaked head on the
end of a short neck. Their arms are paddle-like flippers. On each flipper
there is one visible claw.
PhysiologyThe physiology of an animal is the functions of their body parts. The physiology of green sea turtles would include:- Their carapace, or shell, is used for protection.- Their fins are adapted for swimming and pulling themselves through sand - The males used their claw on the front flipper to grip onto the female during mating.
Taxonomy Common name: Green sea Turtle Scientific name: Chelonia mydas Kingdom: Animalia Phylum: Chordata- The green sea turtle belongs to
this phylum because it is the most advanced and most chordates have backbones, which this animal has.
Class: Reptilia- Green sea turtles belong to this class because marine reptiles are ectothermic, breath air with lungs, have scales, adb are equipped with special glands to maintain salt balance. Which this animal has.
Order: Testudinata Family: Cheloniidae Genus: Chelonia
EcologyGreen sea turtles move across 3 types of
habitats depending on their life stage:- Newly emerged hatchlings live in the
open ocean. They are in danger to crabs, small marine mammals and
shorebirds.- Mature adult green sea turtles live in
shallow, coastal waters with lush sea grass beds. They are in danger of humans and large sharks.
ReproductionGreen sea turtles reproduce by first
mating. They mate by first a male courts a female turtle several weeks before the nesting season. Two or more males may court a single female. Then the male uses his enlarged claw on his front flippers to grasp onto the female’s shell during mating. When it comes to the actual reproduction the female pulls herself out of the water and up the beach to dig a pit. She lays her clutch of approx. 100 eggs and covers them. Then goes back to sea, leaving her young to fend for themselves.
Relationship with Humans There are several reasons why green sea
turtles are important to humans:- For food- People use their eggs for food
also.- They also use their shells for
decorative ornamental material, such as in combs and brushes.
Bibliography http://www.arkive.org/green-turtle/chelonia-mydas/http
://lumpysoceanlife.blogspot.com/2008/01/green-sea-turtles-photos.html
http://www.divephotoguide.com/user/pixelpame/gallery/green_sea_turtles/photo/2167/
http://www.mauisnorkeling.com/Whales&Turtles.html
http://members.shaw.ca/the.trainman/remember-when/page-14.html
http://litscapeart.com/Artist/036/Reinhard_Dirscherl/Green_Sea_Turtle_Eggs_in_a_Nest_on_a_Borneo_Beach_Chelonia_Mydas_Pacific_Ocean.html
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