Australia's Great Barrier Reef is in danger.

The Great Barrier Reef is managed by the Great Barrier Reef Marine Park Authority under specific federal and state legislation.

The Belize Barrier Reef is a UNESCO recognised World Heritage Site and is the second largest barrier reef in the world, behind Australia's Great Barrier Reef.

The Australian Great Barrier Reef is another success story.

Under the realization from tourist operators, fishermen, the Australian Great Barrier Reef Authority and scientists that the Great Barrier Reef is doomed under the current governance regime.

In 1922, the Great Barrier Reef Committee began carrying out much of the early research on the reef.

In 2000, the torch was carried under the water by divers near the Great Barrier Reef.

A great deal of this has been happening in the Great Barrier Reef, particularly in coral reefs all over the world.

The islands of the Great Barrier Reef also support 2,195 known plant species three of these are endemic.

Ecology The Great Barrier Reef supports a diversity of life, including many vulnerable or endangered species, some of which may be endemic to the reef system.

A large part of the reef is protected by the Great Barrier Reef Marine Park, which helps to limit the impact of human use, such as fishing and tourism.

The green sea turtles on the Great Barrier Reef have two genetically distinct populations, one in the northern part of the reef and the other in the southern part.

The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms.

Human use The Great Barrier Reef has long been known to and used by the Aboriginal Australian and Torres Strait Islander peoples.

A huge variety of marine invertebrates are found in Australian waters, with the Great Barrier Reef an important source of this diversity.

On 11 June 1770, the HM Bark Endeavour , captained by explorer James Cook, ran aground on the Great Barrier Reef, sustaining considerable damage.

Reefs in the inner Great Barrier Reef spawn during the week after the full moon in October, while the outer reefs spawn in November and December.

Thirty species of whales, dolphins, and porpoises have been recorded in the Great Barrier Reef, including the dwarf minke whale, Indo Pacific humpback dolphin, and the humpback whale.

Most nesting sites are on islands in the northern and southern regions of the Great Barrier Reef, with 1.4 to 1.7 million birds using the sites to breed.

This is a tracking experiment, and any of you scuba divers, if you want to get involved in one of the coolest projects ever, this is off the Great Barrier Reef.

The Great Barrier Reef has long been known to and used by the Aboriginal Australian and Torres Strait Islander peoples, and is an important part of local groups' cultures and spirituality.

And that is the same reef that's the same reef 15 years ago that's the same reef today.

Geography The territory includes Ashmore Reef (including West, Middle, and East Islands, and two lagoons within the reef) and Cartier Reef (including Cartier Island).

We're crocheting a coral reef.

Tom has a reef aquarium.

Barrier Breaking Fury .

And there's a beautiful reef, very complex reef, with lots of animals, including a lot of octopus.

Ecology and environment Ashmore Reef Commonwealth Marine Reserve The Ashmore Reef Commonwealth Marine Reserve (formerly Ashmore Reef National Nature Reserve), established in August 1983, comprises an area of approximately .

I'd never seen the reef here before.

The barrier is the Rhine.

I'm an ecologist, mostly a coral reef ecologist.

Why on earth are you crocheting a reef?

The coral reef is the region's prime attraction.

In accordance with Shackleton's promise to Scott, the ship headed for the eastern sector of the Great Ice Barrier, arriving there on 21 January 1908.

Why not chisel a coral reef out of marble?

Now, see this strange, underwater, coral reef looking thing?

Very unlikely, Joe would jump on a pristine coral reef, a virgin coral reef with lots of coral, sharks, crocodiles, manatees, groupers, turtles, etc.

And when they're missing, it's a barrier.

Maybe the barrier would be too universal.

And they impose a barrier to cooperation.

They clean the reef everything that grows enough to be seen, they eat, and they keep the reef clean and allow the corals to replenish.

How does the reef work? Well, it's very, very simple.

Do we have evidence of this? Yes, coral reef systems.

This is our invocation in crochet of a bleached reef.

Another example Nassau groupers in Belize in the Mesoamerican Reef.