Marine Reptiles Class Reptilia

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Presentation transcript:

Marine Reptiles Class Reptilia Characteristics of Reptiles; Cold Blooded (Ectotherm) Three Chambered Heart Scales Oviparous Reproduction

Salt Glands to rid excess salt in ocean species Restricted to temperate or warm areas

Chuckwalla, Isla Ventana

Crocodiles; marine sp. Saltwater Crocodiles; Florida, Australia, Asia Africa Crocodiles have specialized 4 chambered heart

Sea Snakes Venomous 50 species (one sp.) Calif. To Ecuador Modified flattened body

Marine Lizards Marine Iguana of the Galapagos Is. Modified flattened tail Eat algae on rocks in the sea Unique example of natural selection

Sea Turtles 6 species, all are endangered Scales fused into hard carapace (shell) Extensive migration patterns for egg laying on tropical beaches

Green Sea Turtle Range; San Diego to Tropics Food; eel grass and sea weeds

Green Sea Turtle

Loggerhead turtle Range; S. Calif. To tropics Food; crabs, mollusks, jellyfish, eelgrass

Loggerhead

Leatherback Turtle Range; all warmer seas Food; jellyfish

Leatherback

Pacific Ridley Turtle Range; N. Baja Mex. To tropics Food; sea weed, Mollusks, urching

Hawksbill Turtle Range; Tropics Food; predator, fish etc.

Hawksbill

Olive Ridley Turtle Range;

Olive Ridley

Kemp’s Ridley

Australian Flatback

Black Turtle, West coast of Mex.

Exploitation by Man Meat Eggs Leather Shells (Hawksbill) (tortoise shell) Oil (lotions etc.)

Eating raw turtle eggs; for ?????

Egg Poaching, Costa Rica

Olive Ridley snagged in a longline set for sharks. Costa Rica, Pacific

Conservation Efforts for food and for release into wild ‘Farm’ raising for food and for release into wild Guarding breeding beaches Laws, regulations,(enforcement problems)

Antonio Resendiz, Bahia de Los Angeles

Protected nesting beach at Rancha Nuevo, Mex. Kemp’s Ridley hatchlings