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Great Barrier Reef: Animals, Ecosystems, Food Chains

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Emilie Scott

on 24 February 2014

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Transcript of Great Barrier Reef: Animals, Ecosystems, Food Chains

Great Barrier Reef: Ecosystems, Animals, Food Chains
Frahm, Randy. <i>The humpback whale</i>. Mankato, Minn.: Capstone Press, 1998. Print.
"Great Barrier Reef Animals." <i>- Animals of the Great Barrier Reef</i>. N.p., n.d. Web. 20 Feb. 2014. &lt;http://www.the-great-barrier-reef-experience.com/great-barrier-reef-animals.html&gt;.
"Green Sea Turtle." - National Wildlife Federation. N.p., n.d. Web. 19 Feb. 2014. <http://www.nwf.org/wildlife/wildlife-library/amphibians-reptiles-and-fish/sea-turtles/green-sea-turtle.aspx>.
"Green Turtle." Green Turtle. N.p., n.d. Web. 20 Feb. 2014. <http://www.seeturtles.org/988/green-turtle.html>.
Holmes, Kevin J.. Dolphins. Mankato, Minn.: Bridgestone Books, 1998. Print.elsbacher, Anne. Hammerhead sharks. Minneapolis: Capstone Press, 1995. Print.
Welsbacher, Anne. Hammerhead sharks. Minneapolis: Capstone Press, 1995. Print.
Zimmermann, Kim. "Great Barrier Reef: Facts, Location & Animals." LiveScience. TechMedia Network, 14 Sept. 2012. Web. 19 Feb. 2014. <http://www.livescience.com/6290-great-barrier-reef.html>.
The Animals of the Great Barrier Reef
Food-Chain in the Great Barrier Reef
What types of ecosystems exist at the Reef?
species of fish
different types of coral
species of molluscs and shellfish
species of sea-sponge
species of echinoderms, such as starfish
species of seaweed
species of marine mammals
species of bird
6 of the 7
endangered marine turtles

There Are..
The Great Barrier Reef has species that range from Microscopic Plankton to Humpback Whales
What's the Comparison in Size of Animals?
They look like fish, but they are actually mammals.
there are more than 30 types of dolphins
Generally they are very active
Dolphins have tails called flukes. They move them up and down, which moves them through the water.
They use echolocation, squeaks, whistles, and clicks to talk to each other and find prey
The Dolphin
There are 9 different types of Hammerhead sharks
Their skeletons are made of cartilage. Cartilage is softer than bone but still stiff.
Most sharks are loners meaning they swim and hunt alone. However scalloped hammerheads and bonnethead sharks swim in groups or schools.
Hammerhead Sharks
All whales are cetaceans
cetacean means marine mammals including whales, dolphins and porpoises
They perform special, above water behaviors.
such as Breaching- jumping out of the water and landing on their backs. They may do this up to 100 times
Lob Tailing- Sticking their tails out of the water
Their flippers are 1/3rd of their body length
The Humpback Whale
Saving the Best for Last...
The Green Sea Turtle, found at the Great Barrier Reef is the second largest turtle
They can weigh up to 500 lbs!
Sea Turtles don't reach maturity until 20-50 years, but they can live for 80-100+ years after that!
Sea Turtles spend almost all their time underwater
When they are asleep their blood delivers oxygen making it possible to stay underwater for hours at a time!
Sea Turtles!!! :)
Coral reefs
Lagoon floor
Open water
Freshwater wetlands
Forested floodplain
Heath and shrublands
Grass and sedgelands
Forests and rainforests
How has the ecosystem changed
over the years?

Pollutant levels
Fish stocks depleted
Up to 70-80% of wetlands lost
Phosphate and nitrogen increased by 200-1500% in river discharges
A food web consists of all the food chains
in a ecosystem.
" Every living thing in
an ecosystem fits in a part of the food chain.
Each food chain is one possible way to reserve energy and nutrients that moves through the ecosystem. -National Geographic

: Giant Kelp, Cyanobacteria, and Bull Kelp
Primary Consumer
: Alabone and Urchin
Secondary Consumers
: Sea star, whale shark
Tertiary Consumers
(secondary carnivores)
: Rays and Octopus
Apex Predators
(top-level carnivores)
: Moray Eel, Tiger Shark
FUN & interactive game for inside
the classroom
"It's circle of Life"
Full transcript