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Published byJack Randall Modified over 9 years ago
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Located near the shores of any of the oceans. Partially enclosed body of water where freshwater meets salt water. These estuaries are influenced by the tides, but they are fully protected by land masses/barriers. The soil is rich, therefore, it can support many different plant types.
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Many have not heard of estuaries before, but maybe you have heard of a harbor, sounds, or lagoons? These places are actually estuaries, where rivers and streams of freshwater mix with ocean salt water. They are an important role for the shipping industry. 75% of all fish has been estimated to have lived in an estuary at least part of their life cycle. NYC is located on the Hudson River Estuary.
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Marine organisms can make their own shelter or they have shells they use for protection against the Estuary’s climate change. The climate of an estuary can affect it greatly. Seasonal cycles can bring varying amounts of rain, changing water temperature, and sunlight. – Wind cause waves in which the waves will stir up sediments This causes sediment to move in and out of estuaries and can erode the shoreline.
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Coastal Plain – Formed at the end of the last ice age where rising water levels invaded the low-lying coastal rivers. (Ex. Chesapeake bay) Tectonic – Cracks or faults formed in the crust and sea water filled in the fault. (Ex. San Francisco Bay) Bar-Built – Sand build up along the coastline. (Ex. Pamlico Sound) Fjord – Valleys that have been cut by moving glaciers then filled in by sea water.
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Creates a fishing area where many different species of fish are found. Provides a home for many species of plants and animals. Estuaries protect the inland from floods. – They absorb water that is produced from a storm.
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^ ^ Polychaete Worm ^ Dungeness Crab ^ Salmon Larvae Animals of Estuaries Crane Alligator
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Cape-Flats Conebush (Endangered) CattailsKnotgrass Monkey Flower Lilies Plants of Estuaries
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Estuaries are falling in numbers. People fill in estuaries with dirt to make houses. Man-made structures, such as dams, can block natural streams and river, in which It cuts off freshwater going into the estuaries. – Therefore, the fresh and saltwater balance is thrown off and can seriously damage an estuary.
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Some species may have a hard time to live and reproduce because pollutants can restrict that. Many may notice the competition in an estuary such as a crane hunting for a fish. 50% of the US population lives on the coast, therefore, more land needs to be created which means destroying an estuary.
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Many farm near an estuary to use the unlimited amount of water, but chemicals have a greater chance of entering the water. Many plants and animals have learned and adapted to these conditions, so they can reproduce normally but may have complications or birth defects.
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Lincoln City, Oregon. (Vacation Spot) Nursery for salmon. Very popular vacation spot. Home to 1,000+ shorebirds Nominated as an Important Bird Area for birds such as the Brown Pelican, Bald Eagle, and the Peregrine Falcon. – Note= No negative effects were listed as to affect this biome but there are possibilities of pollutants from campgrounds and perhaps chemical spills from boats.
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Seafood
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Any questions, comments, or concerns?
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http://water.epa.gov/type/oceb/nep/about.cfm http://www.oregonshearwater.com/activities-in-lincoln- city-area http://www.oregonshearwater.com/activities-in-lincoln- city-area http://www.nhptv.org/natureworks/nwep6a.htm http://estuaries.noaa.gov/About/Default.aspx?ID=230 http://www.clas.ufl.edu/users/jmjaeger/estuaries.htm
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