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Flashcards in Sea Turtles Deck (24):
1

What are the seven species of sea turtle?

1. Loggerhead
2. Hawksbill
3. Kemp's Ridley (most endangered)
4. Olive Ridley (most common)
5. Australian flat back
6. Leatherback
7. Green: found in tropical oceans around globe, except eastern tropical pacific where he Black Sea turtle is the tropical species

2

Are sea turtle warm blooded or cold blooded?

Cold blooded (ectothermic)

3

What do sea turtles matter?

-link in ecosystem
-help maintain health of sea grass beds and coral
-major cultural significance and tourism value

4

How fast do sea turtles swim?

20-25 mph

5

How long can a sea turtle hold their breath?

2 hours

6

When is a sea turtle mature?

10-50 yrs

7

What do the lacrimal glands of sea turtles do?

Secrete salt through the eyes

8

Describe the anatomy of a sea turtle?

-internal/external skeleton
-external protective shell and internal skeleton with fused ribs
-powerful sense of smell
-no ears
-male/female difference: male has a longer tail than female
-can't retract limbs or head

9

Describe sea turtle reproduction

-mating occurs at sea
-sea turtle nesting in Gulf of Mexico is May-October
-egg laying behavior-return to natal beach

10

How do sea turtles know what beach is their natal beach?

-detect both angle and intensity of the earths magnetically field
-hatchlings imprint on natal beach
-young females may follow older females

11

Clutch

Number of eggs in a nest

12

How many nests do sea turtles lay a season?

2-8

13

Caruncle

Egg tooth used to chip at shells, falls off

14

Egg incubation

2 months depending on species

15

Sex determined by

Temp of sand (boys cooler temp, girls hotter temp)

16

What do sea turtles eat?

-loggerhead: lobsters, crustacean, fish
-green: sea grass
-leatherbacks: jellyfish
-hawksbill: coral, anemones, sea sponges

17

What are the predators for sea turtle eggs?

Skunks, raccoons, pigs, lizards, crabs, ants, beetles, fungal and bacterial infections

18

What are the predators for hatchlings?

Birds, mammals, crabs, Sharks, large fish

19

What are the predators for adult sea turtles?

Sharks, humans

20

What is the commercial value of sea turtles?

-meat
-eggs
-soup
-jewelry
-leather

21

What is a TED?

Turtle excluder device

22

What are the threats to sea turtles?

-marine debris: fishing line takes 600 years to decompose
-boat hits: bubble butt syndrome
-coastal development: reduces access and availability of nest sites, artificial lighting
-oil contamination: can irritate turtle's eyes, skin, mucous membrane; ingestion may cause damage to various vital organs
-fibropapilloma: characterized by the presence of benign tumors, occurring externally and internally; linked to water pollution

23

Why tag sea turtles?

Identify indirectly turtles, establish migration patterns,

24

What are the types of tags?

-flipper tags
-PIT tag
-satellite tags
-sonic and radio tags
-living tags