Estuaries are usually found where a creek or a river meets the sea.
Because the water in a slough is brackish, (a mixture of fresh and saltwater) it hosts a large array of unique plant and wildlife. Many species of wildlife rely on estuaries for food, breeding grounds and housing. A slough is one of the most productive ecosystems in the world.
Human populations also rely on estuaries for food, recreation and employment. As a result, many towns and cities have been built on or near a slough. Unfortunately this has lead to a decline of the health of the sloughs, making estuaries one of the most threatened ecosystems in the world.
We should do our very best in trying to preserve these very important habitats so that we can learn from and enjoy the wonderful life that they provide.
by Emma I.
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