9. Sea Turtles Diagram | Quizlet

loggerhead

Turtle species which migrates a long distance.

olive ridley

This species is the most plentiful of the sea turtles because they all nest at the same time.

Kemp's ridley

highly endangered turtle living in the gulf of mexico

green sea turtle

Can be seen at the Downtown aquarium. these turtles are herbivores and the only species which comes ashore just to bask in the sun.

leatherback

Largest sea turtle species, which swims the furthest and dives the deepest.

Australian flatback

This species of turtle has the smallest distribution. They are only found in one place!

hawksbill

This reef living turtle is highly prized by poachers for its beautiful shell.

carapace

the upper (back) shell of a sea turtle

migration

moving from one location to another in a pattern

arribada

the arrival of many females on a beach to nest at one time

clutch

a sea turtle nest

ecotourism

vacations where people help animals or the environment

Ectothermic

a cold-blooded animal that lays eggs

false crawl

when a sea turtle comes to shore to nest, but must return to the ocean after being distrurbed

flippers

the limbs of a sea turtle

hatchling

a sea turtle that has just hatched from its egg

juvenile

a young sea turtle

range

the area a sea turtle migrates in a cycle

oviparous

egg-laying animal

plastron

the lower (stomach) shell of a sea turtle

scute

the plates on a shell

frenzy

hatched turtles scurry down the beach to the ocean

Cold stunning

when sudden temperature drops endanger sea turtles

tubercles

tumorous grows on the skin of sea turtles

Barnacles

hardcovered shellfish that attach themselves to sea turtles

plastic bags

look just like jellyfish to a hungry sea turtle

pip

when a baby turtle makes a hole in its shell to hatch

lost years

term which descirbes the span of time in a young turtle's life where we did not know where they went.

bask

describes how a sea turtle sunbathes to warm up

rafting

when a turtle floats along with the current in a giant mat of sea grass

bicatch

fishing term which applies to caching the wrong thing. Like a sea turtle or shark.

CITES

agreement to ban/limit trade in endangered species

Archelon

giant species of sea turtle which went extinct

imprint

baby turtles recognize the beach where they were born and will return there to breed.

PIT tag

passive integrated transponder imbedded into the skin of a turtle so they can be identified when found.

PTT tag (telemetry)

platform transmitter tag mounted to the shell of a turtle which links to a satellite when the animal surfaces to track location.

tomlum

serrated edge of the turtles beak which helps cut through their food.

pappillae

projections in the throat of the turtle which keep food in but allow them to belch out seawater.

Turtle Excluder Devices (TEDs)

A device attached to a shrimp net to allow sea turtles and other large organisms to escape from the net while allowing shrimp to be caught

Temperature dependent sex determination

A process that occurs in animals without sex chromosomes in which sex is determined solely on the basis of the temperature at which the egg incubates. Cold nests favor boys, warm nests favor girls.

TERM

crawl (diagram)

DEFINITION

each turtle species makes a distinctive track in the sand. This is a photo of one!

TERM

hatchling (diagram)

DEFINITION

Baby sea turtles are the size of the palm of your hand. This is a photo of a baby loggerhead. Aww.

Shows the ideal survivorship curve for an extreme K-selected species like humans

Curve I

Shows the ideal survivorship curve for a k-selected species like a whale or a manatee

Curve II

Shows the survivorship curve for an R-selected species like a sea turtle

Curve III

2/1000

Average survivorship of sea turtle hatchlings

15-20

Age of sexual maturity for most sea turtle species

critically endangered

criteria indicates that a species numbers have dropped 80% in 3 generations

endangered

criteria indicates that a species numbers have dropped 60% in 3 generations

6 of the 7

sea turtle species are endangered

(Diagram) Rear flipper~used for steering

#1

(Diagram) Claw for digging in the sand

#2

(Diagram) Front flipper~used for swimming

#10

(Diagram) Scutes

#3, 4, & 6