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Maneging coral reefs

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Introduction

Introduction Coral reefs are unique ecosystems of plants, animals, and their associated geological framework. The ocean equivalent of rainforests, they are home to 25% of all marine species, yet it is estimated that many of the world's reefs will be destroyed or significantly damaged in the next 20 years because of the human and the physical damage put on to them. They grow in tropical seas in the photic zone, where there is mild wave action, not so strong to tear the reef apart yet strong enough to stir the water and deliver sufficient food and oxygen. Coral reefs also need nutrient-poor, clear, warm, shallow water to grow. Human Threats to the Coral reefs Tourist There are a number of different human threats applied to the coral reefs, most of it which is caused by tourists. These activities are; * Snorkelling- Inexperienced snorkellers can trample corals with their flippers. The can also damage the corals by getting to close and resting on the reefs. * Boat trips- Cruses taking visitors out to the reefs are often careless when the drop their anchor. The anchor will crush the delicate corals with their weight. ...read more.

Middle

A rise in temperature causes the icebergs to melt. The melted sea water is added to the sea, and makes the sea level rise. The means that the sea becomes deeper. If the sea becomes deeper, the corals will start to lack in sunlight. Corals need warm and shallow water. * Soil Erosion- When soil erodes, the soil usually ends up in a river, and then gets carried down to the sea. The soil can then be deposited on the corals. If this happens, the corals would be covered in sand, and they won't be able to intake any sunlight. It is usually caused by poor use of land. * Climate change- Changes to the weather patterns can cause problems for the coral reefs. Hurricanes are now striking more and more frequently, and the have becomes stronger. This is all to blame on the global warming. Hurricanes can have a devastating impact on the coral reefs because of its increased wave energy. Sediments generated during storms can bury the coral communities. Ways to prevent human damages to coral reefs Tourist There might be a lot of human threats to the coral reefs which can damage them, but there are also a number of ways to prevent the damages which are caused to them. ...read more.

Conclusion

This can be done if the amount of carbon dioxide produce is less than before. We can shorten the amount by using less energy, stop the usage of non-renewable fuels and use our cars less and less. * Soil erosion- Soil erosion can be prevented by planting more trees on the land. This will keep the soil together and prevent the soil from washing away when it rains heavily. * Climate change- Hurricanes and other powerful storm are nearly impossible to prevent. It wouldn't be normal if they don't strike, but reducing the amount of CO2 would help to reduce the speed of the storms. If the damage continues at the same rate as it is now, in the next few centuries to come, the coral reefs and their inhabitants would be extinct. In my opinion, the tourist industry is causing most of the damage. The coral reefs should be all made into a nature park, where tourist would have a guide to take them around the corals and tell them about the dangers of them being extinct. Fishing by the coral reefs should be banned by the government. If all these improvements are made, the fragile ecosystem would be around for the next generation of people to see them. ?? ?? ?? ?? Samuel Antony-Felix 8c ...read more.

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