marine reptiles sea turtles, sea snakes, marine lizards and salt-water crocodiles.sea turtles, sea...

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Page 2: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Marine ReptilesMarine Reptiles• Sea turtles, sea snakes, marine Sea turtles, sea snakes, marine

lizards and salt-water crocodiles.lizards and salt-water crocodiles.• Tetrapods with scaly skin, Tetrapods with scaly skin,

oviparous & respire with lungs.oviparous & respire with lungs.• Usually restricted to warm water.Usually restricted to warm water.• Must osmoregulate (get rid of Must osmoregulate (get rid of

excess salt in their bodies).excess salt in their bodies).

Page 3: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Sea TurtlesSea TurtlesFamily ChelonidaeFamily Chelonidae

• 8 species of sea turtles 8 species of sea turtles • All are threatened or endangeredAll are threatened or endangered• Shells are flattened to decrease water Shells are flattened to decrease water

resistanceresistance• Fat and light bones increase buoyancyFat and light bones increase buoyancy• Excrete excess salt through their Excrete excess salt through their eyeseyes

Page 4: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

CarnivoresCarnivoresLeatherbackLeatherback

**Largest sea turtle****Largest sea turtle**Kemp’s RidleyKemp’s Ridley

**Most endangered****Most endangered**

HawksbillHawksbill

**Jewelry and food****Jewelry and food**

Page 5: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

HerbivoresHerbivores

Green TurtleGreen Turtle

**Used for food****Used for food**

Page 6: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Sea Turtle MigrationSea Turtle Migration

• Return to same beach they hatched from Return to same beach they hatched from to lay eggs.to lay eggs.

• Bury eggs to protect them for predators Bury eggs to protect them for predators and keep the eggs moist and warmand keep the eggs moist and warm

Page 7: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Natural Threats to SurvivalNatural Threats to Survival• PredatorsPredators

including raccoons, including raccoons, crabs, ants, birds crabs, ants, birds and sharksand sharks

Page 8: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Human Threats to Survival:Human Threats to Survival:1. Commercial fishing with no TED’S1. Commercial fishing with no TED’S

Page 9: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

TED: Turtle Excluder DeviceTED: Turtle Excluder DeviceAllows shrimp to pass to the Allows shrimp to pass to the back of the net while the turtle back of the net while the turtle escapes to safety before escapes to safety before becoming trapped. becoming trapped.

Federal law requires TED’s Federal law requires TED’s installed on all US fishing installed on all US fishing trawlers in areas populated by trawlers in areas populated by sea turtlessea turtles.

Page 10: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

2. Ingestion of Plastics and Debris2. Ingestion of Plastics and Debris

Page 11: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

3. Artificial Lighting of Beach3. Artificial Lighting of Beach

Page 12: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

4. Coastal Armoring4. Coastal Armoring

• http://www.conserveturtles.org/seaturtleinformation.php?page=seawalls

Page 13: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

5. Beach Nourishment5. Beach Nourishment

Page 14: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

6. Fibropappilomas6. Fibropappilomas

Page 15: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

7. for meat, jewelry, leather and 7. for meat, jewelry, leather and cosmeticscosmetics

Page 16: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

ProtectionProtection• Endangered Species Act (Hawksbill, Leatherback, Kemp’s Endangered Species Act (Hawksbill, Leatherback, Kemp’s

Ridley, and Green).Ridley, and Green).• Illegal to harm, harass or kill.Illegal to harm, harass or kill.• Illegal to import, sell, or transport turtles or their products.Illegal to import, sell, or transport turtles or their products.• Enforcement of Turtle Excluder Device (TED) regulations.Enforcement of Turtle Excluder Device (TED) regulations.

Page 17: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Family HydrophiidaeFamily HydrophiidaeSea SnakesSea Snakes

• 50+ species50+ species• 5-9 feet long5-9 feet long• Eliminate excess salt from gland in mouth, Eliminate excess salt from gland in mouth,

salt is expelled as snake protrudes tonguesalt is expelled as snake protrudes tongue

Sea Krait Yellow-bellied

Page 18: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Yellow-bellied sea snakeYellow-bellied sea snake

• Most common sea snakeMost common sea snake

Page 19: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Beaked Sea SnakeBeaked Sea Snake

• Most venomous sea snakeMost venomous sea snake

• Can kill 53 people with one dose of Can kill 53 people with one dose of venomvenom

Page 20: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Marine LizardsMarine Lizards• Galapagos marine iguanaGalapagos marine iguana• All are herbivores; eat All are herbivores; eat UlvaUlva• Tails are adapted (flattened Tails are adapted (flattened

for swimming)for swimming)

Page 21: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Marine LizardsMarine Lizards

• Salt glands excrete excess salt from Salt glands excrete excess salt from consumed seaweeds; sneezed out consumed seaweeds; sneezed out through their nosethrough their nose

Page 22: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Marine CrocodilesMarine Crocodiles

• EndangeredEndangered• Inhabit extreme South Florida and KeysInhabit extreme South Florida and Keys• Long narrow snout with 4Long narrow snout with 4thth tooth exposed tooth exposed

Page 23: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Class AvesClass Aves

• Tetrapods with feathers Tetrapods with feathers

and wingsand wings

• Respire with lungsRespire with lungs

• OviparousOviparous

Page 24: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

SeagullSeagull

• Common predators & scavengersCommon predators & scavengers

Page 25: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

PelicanPelican

• Catch fish with pouch under beakCatch fish with pouch under beak

Page 26: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Penguin

• Flightless bird

Page 27: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Cormorant

• Diving bird

Page 28: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Frigate

• Largest wingspan

(8 ft.) to bodyweight

(3 lbs)

Page 29: Marine Reptiles Sea turtles, sea snakes, marine lizards and salt-water crocodiles.Sea turtles, sea snakes, marine lizards and salt-water crocodiles. Tetrapods

Arctic Tern

• Spend majority of life in flight

• Travel over 20,000 miles every year