Elwha Plant Development.pptx - Elwha River Plant Succession...

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Elwha River Plant Succession How the Elwha reservoir has progressed since the dams were taken down By David Leep, Grace Castle, Skyler Johnson & Camilla Limberg Teacher: Ms. Castor, Group leader at NatureBridge: Beth
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Brief History of the Elwha River The Elwha is a river named after the Elwha tribe, who used the river as their main source of food and were master fishermen. That was until Thomas Aldwell, in 1913 he built a large dam, one that broke state laws and did not have a fish ladder. Eventually the salmon that used the river to go back home to spawn hit the dam and in the process it stopped salmon from repopulation, which dwindled down the overall population. Another side effect, was that because of the dam, the flowing water created a reservoir, and prevented the sediment from traveling to the ocean. Which brings us to now, after the dams were taken out it left a large bed of sediment and we were there to study how that bed has progressed to a new riverside.
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The Effect of Dam Removal As it was said before, after the dams were removed it left behind large amounts of sediment.
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  • Fall '16
  • Briton Castor
  • Biology

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