Hawaii's coral reefs

Hawaii's coral reefs and nearshore waters are home to more than 7,000 forms of marine life, a quarter of them found nowhere else on Earth. Hawaii’s reefs contribute more than $360 million annually to the state’s economy – that’s $1 million a day.

These reefs are truly a global ocean treasure. Hawai'i has...
More unique marine species than any place of its size in the tropics
One of the last large-scale marine wilderness areas on the planet

Over 300,000 acres of nearshore coral reef
The Nature Conservancy launched its Hawai‘i Marine Program in 2002 to help preserve the Islands’ remarkable marine diversity. The Conservancy’s efforts are focused on restoring the health of our magnificent coral reefs and the unique species that depend on them for their survival.

A Resource at Risk
Despite their biological, economic, and cultural importance, Hawaii’s marine ecosystems continue to be severely degraded by human activity. With a resident population of 1.3 million and 7 million visitors arriving annually – the majority of whom engage in ocean-related activities – Hawaii’s reefs are strained beyond capacity.

The reality is that our ocean faces serious threats, most caused by humans, that have upset the delicate balance of life beneath the waves. Overfishing, the use of indiscriminate fishing practices such as lay gill nets, pollution, runoff, inappropriate recreational use, and the introduction and spread of invasive alien species all jeopardize the health of our reefs.

The good news is that reefs are resilient – if we act in time, we can restore them.

What The Conservancy Is Doing
We are working in collaboration with others to rescue Hawaii's coral reefs – our rainforests of the ocean – from further degradation. Major ongoing efforts include:

Community-based partnerships and programs
Invasive species removal

Reef Fund
Fair Catch responsible fishing campaign



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How polluted is Ocean Water?

How polluted is Ocean Water?

What kind of stuff is in it and why are some areas worse than others? Why are some areas dark colored black water and some are clear blue?

ANSWER?
Best Answer - Chosen by Asker
One of the most polluted sections of ocean in the world today is known as the Gulf Of Mexico "Dead Zone". Thanks to runoff from the Mississippi River, there is an extremely unhealthy cake of sediment and pollution in the ocean that covers an area of 22,126 square kilometres.

The majority of the pollutants that make up this particular Dead Zone are agricultural-based pollutants, eg. artificial fertilizer and animal waste. Thanks to meterological elements such as rain, the pollution makes its way into the tributaries that lead to the Mississippi, forming a big disgusting clump of waste just offshore in the Gulf.

This causes depleted oxygen levels in the water, which in turn leads to reproductive problems and ultimately death in marine wildlife.There are currently reports of over 140 dead zones throughout the world - but as pessimistic as this sounds, the good news is that the world's previous largest dead zone in the Black Sea (over 70,000 square kilometres!!) actually cleared itself up over the course of 10 years due to a decrease in industrial waste.I'm no ecologist so don't quote me on this - but I wouldn't think that dead zones are responsible for the darnkess of the sea water, I would have thought that had to do more with the ocean's depth and any reefs or other such natural geological occurance (ie. clear blue coloured water closer to the shore and darker black out in the deep, or in a reef-heavy area). Although I'm sure dead zones are distinguishable by satellite, I wouldn't think that *every* off-coloured part of the ocean is a polluted part.

WANT TO KNOW MORE?
Check out this website, it contains a great array of colourful animations and activities all to do with the Gulf Of Mexico Dead Zone:

http://www.smm.org/deadzone/top.html


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