Coral Reefs

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by izzihayward
Last updated 5 years ago

Discipline:
Science
Subject:
Ecosystems
Grade:
9

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Coral Reefs

Conditions needed for reefs to grow.Sunlight: Coral need to grow in shallow water where sunlight can't reach them.Clear water: Corals need clear water that lets the sunlight through; they dont thrive well when the water is opaque.Warm water temperature: Reef-building corals require warm water conditions to survive.Clean Water: Corals are sensitive to pollution and sediments.Saltwater: Corals need saltwater to survive and a certain balance in the ratio of salt to water.Is rising climate change good for coral reefs?No because tempritures brought on by climate change stresses coral out which is'nt good because then they die.

Coral Reefs

Coral Reef Enviroment

The reef crest is the highest point of the reef

The Back Reef is the shallow end between the reef crest and lagoon

The upper reef face is the area from the seaward edge of the reef crest downwards (slope = lower than 45°).

Generally, an escarpment is defined as any part of the seafloor where slopes exceed 45°. No light penetrates to this depth, so coral reefs are rare in this deeper, darker water.

Source of medical advances: We can also expect coral reef species to contribute to future medical advances. Already coral reef organisms are being used in treatments for diseases like cancer and HIV. Just as with tropical forests, we may continue to find the answers to medical problems in the coral reefs - so long as we can keep them healthy.

Coastal protection: Coral reefs break the power of the waves during storms, hurricanes, typhoons, and even tsumanis. By helping to prevent coastal erosion, flooding, and loss of property on the shore, the reefs save billions of dollars each year in terms of reduced insurance and reconstruction costs and reduced need to build costly coastal defences - not to mention the reduced human cost of destruction and displacement.

Intrinsic value: For many coastal societies around the world, coral reefs and their inhabitants are intricately woven into cultural tradtions. For these people - as well as for those who have floated with a mask and snorkel, immersed themselves in the three dimensional wonderland of a scuba dive, or experienced these habitats through media and books - a world without coral reefs would be an infinitely poorer place.

Tourism: Tourism revenues generated by coral reefs are also significant. For example, according to a report by the Key West chamber of commerce, tourists visiting the Florida Keys in the US generate at least US$3 billion dollars in annual income, while Australia’s Great Barrier Reef generates well over US$1 billion per year. Sustainably manged coral reef-based tourism can also provide significant alternative or additional sources of income to poorer coastal communities in developing countries.

How People use the reefs:Fisheries: Coral reefs are vital to the world’s fisheries. They form the nurseries for about a quarter of the ocean's fish, and thus provide revenue for local communities as well as national and international fishing fleets. An estimated one billion people have some dependence on coral reefs for food and income from fishing. If properly managed, reefs can yield around 15 tonnes of fish and other seafood per square kilometre each year.

How Australia's becoming dependent on coral reefs.Reefs are suffering directly and indirectly from the increasing pressure of mans' resource exploitation (Reef Education Network). Overfishing is one driving pressure that has had devastating impacts on coral reefs. Aggressive fishing methods have hurt coral reefs sometimes beyond repair. However, over-fishing in general is also a damaging problem to many coral reefs around the world. Specifically to the Great Barrier Reef, overfishing has caused a shift in the reef ecosystem. Overfishing of certain species near coral reefs can easily affect the reef's ecological balance and biodiversity (Reef Education Network).

Agriculture and industry release a variety of chemicals into coastal waters. Pesticides and fertilisers used in agricultural development projects are carried in run off to sea and have been known to take part in coral reef destruction. Pesticides can destroy or damage zooplankton or reef communities. They cause further damage by accumulating in animal tissue and may affect physiological processes. Herbicides may interfere with the basic food chain by destroying or damaging zooxanthallae in coral, free living phytoplankton, algal or sea grass communities.

What the goverment is doingHuman activity in the Reef areas has led to increased pollutants and the reef has suffered damage. Protecting the Reef - external site is the responsibility of the Marine Park Authority. In 2003, the previous Australian Government and Queensland Governments, in partnership with a wide range of industry and community groups, developed the Reef Water Quality Protection Reef Plan - external site (the Reef Plan) as a combined effort to protect the Reef.Of particular concern is wetlands - which have decreased by over 50 per cent since European settlement. The Great Barrier Reef Coastal Wetlands Protection Program - external site is developing measures for the long term conservation and management of priority wetlands.

Yes I do Think it would be affective

Reefs supply millions with food and other resources.This ecosystem is facing greater rates of disturbance because of our actions.Too much disturbance reduces the productivity, diversity and resilience of the coral reef ecosystem.Preserving this ecosystem will rely largely on preserving the habitats and species of the coral reef ecosystem.Healthy coral reefs supply food and other resources for millions of people. Worldwide, the health of coral reefs is eroding because many of our actions create too much disturbance. Coral reefs are becoming less productive just when we need them the most

To not have any rubbish or recyceling around the ocean or any were because it will proberly end up in the ocean.


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