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Marine Ecosystems By Ben Paterson and Aidan Harris Introduction Marine ecosystems are ecosystems that are under water, because marine means something to do with water. These ecosystems can be in lagoons, lakes, oceans, seas, swamps and wetlands, basically anywhere there is water. Marine ecosystems can even exist in puddles, made up of microbes and bacteria. Oceans The biggest marine ecosystem exists in the worlds seas and oceans, containing many more species of animals and plants than on land. The biggest creatures on earth, whales, are only found in seas and oceans, as well as some of the smallest creatures on earth, plankton and algae. Lakes, Rivers and Creeks Lakes are bodies of water that are inland from seas and oceans, and have a wide diversity of marine wildlife. Fish, some insects, algae and small lake weeds. Rivers are found all over the world and are rich in fish and plant life. Creeks are small rivers that are also found all around the world, but there are a lot in Australia in particular. They contain creatures such as small fish and yabbies or crayfish. Puddles Even in puddles an ecosystem can exist, made up of small bacteria, algae and microscopic organisms. These ecosystems don’t usually last long, because the puddle usually dries up. But sometimes an ecosystem can flourish in a puddle and last for a long while, until the puddle dries up. Map Climate Change Climate change will have a large and decisive effect on marine ecosystems all over the world. In and around Australia the effects could be devastating and could effect all of us, near the coast or inland. Sea levels could rise and flood large areas of land, or we could have droughts lasting for many decades. Seas and Oceans Sea levels could rise and flood large areas all around the globe, but particularly here in Australia. We may lose many of our famed beaches and oceans will become warmer, destroying the corals reefs and driving some species of creatures to extinction. Inland Water Systems Inland Australia is filled with creeks, rivers, lakes, ponds and dams. If climate change causes prolonged droughts many of these waters ways will dry up, causing loss of habitat for some species and loss of drinking water for others. What we can do To stop climate change we must do several things to change how we live and work. People might think that one person might not make a difference, but you can. If one person starts to do something about climate change other people might follow. Things to help To help with climate change you can change lights to eco globes, which save energy. You can turn off lights if your not in the room, turn off appliances if they aren’t being used. Recycling and using grey water can also help to prevent climate change. Bibliography http://enchantedlearning.com http://www.mbgnet.net http://en.wikipedia.org http://www.epa.gov http://www.britannica.com http://www.teachers.ash.org.au