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No. The Great Barrier Reef is a marine biome, located in the Coral Sea, which is an arm of the Pacific Ocean. Freshwater runoff from floods is one of the dangers occasionally faced by the Great Barrier Reef.

on the northeast coast of AustraliaThe relative location of The Great Barrier Reef is the northeast coast of Australia

The Great Barrier Reef itself is an example of mutualism. The corals which create coral reefs such as the Great Barrier Reef have a symbiotic relationship with algae known as zooxanthellae. This algae, which lives within the tissues of the coral, causes a photosynthetic reaction which enables the polyps to make skeletons about three times faster in the light than in the dark. This means the corals deposit skeletons faster than the environment can remove it, and these skeletons build upon each other over time, creating a coral reef.

Many islands lie east of the Great Barrier Reef, as the reef is about 2300 km in length. For example, the islands that make up the countries of Vanuatu, Samoa, Fiji and New Caledonia lie east of the Great Barrier Reef.

Some fish eat coral along with clumsy sharks or whales. The greatest source are humans,who take corals because they look pretty or because the polluting of the sea causes coral to die off.

The depth of the Great Barrier Reef varies. The coral which makes up the Great Barrier reef is believed to extend to a depth of around 500m in some places, but the actual living polyps only go down as far as 30 metres.

The water in the channel between the shoreline and the reef reaches about 60 metres in depth.

The dugong is an example of a primary consumer in the Great Barrier Reef.

Yes, it is one of the seven natural wonders of the world

The Eastern Spiny seahorse - Hippocampus hendriki- lives in the Great Barrier Reef.

The water temperature of the Great Barrier Reef varies between 22 degrees Celsius and 28 degrees Celsius (71 to 82 degrees Fahrenheit), depending on the season and on how far north one travels. As the reef extends for 2300 km down the coast of Queensland, it will tend to be warmer further north.

Winter temperatures do not change dramatically, as the majority of the reef is in tropical and subtropical waters, and coral requires a constant warm temperature range.

They had to cross mountians and savannahs

The Great Barrier Reef is a spectacular marine area off Australia's beautiful coastline which is full of life and wonder. It has to be seen to be believed. Look it up online and learn all about it. It is a very popular tourist destination for a reason - it is breathtaking!

the eco system works in many ways it works by restoring anything that was herat by polushen, the eco system works in many ways it works by restoring anything that was herat by polushen,

I think a whale eats plankton, doesn't it? Is that the question?

The reef sits on top of thousands of years of compacted coral skeletons that have compressed and fused to form limestone rocks. So yes, there are rocks in the reef as it is principally composed of rock.

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the Great Barrier Reef is approximately 500,000 years old. However The structure of the current reef is much younger. It is less than around 8,000 years old. So it is hard to put your finger on the exact age of the Great barrier reef.

This is NOT the answer to the question...It is merely speculation.

In and around the Great Barrier Reef can be found:

* 1625 species of fish, including 1400 coral reef species

* More than 3000 species of molluscs (shells)

* 630 species of echinoderm (starfish, sea urchins)

* 14 species of sea snakes

* 215 species of birds including 22 species of seabirds and 32 species of shorebirds

* Six species of marine turtle (there are only 7 species in the world)

* 30 species of whales and dolphins

* one of the largest populations of dugong

* 133 species of sharks and rays

As well, there are an estimated 400 species of hard and soft corals, and at least 2195 known plant species.

Our world, Our future, Our reef

Because the Great Barrier Reef extends for 2000 km up the Queensland coast, there are several cities close to the reef. A large city which is closest to where the reef comes in nearest the coast is Cairns. Townsville is a large city along the coast, but the reef is not as accessible and close to shore from there. The southern end of the Great Barrier Reef is around 75km northwest of the port city of Gladstone. Brisbane is the nearest capital city to the Reef, but it is about 530km from the southern end. Contrary to popular overseas opinion, Sydney is nowhere near the Great Barrier Reef, as it is 930 kilometres south of Brisbane.