Introduction
Water management projects often cause unintended consequences that harm the environment. One of these is using dams to control the water flow of rivers. In this webquest, you will visit several sites to learn more about this topic.
Task
You will use the provided links to gather information about the effect that dams have on migratory spawning routes of some fish, such a salmon, and solutions that have been created to mitigate the harm. The final task will be to select the solution that you believe is the most effective; you should consider impact on the environment, cost, and feasability.
Process
http://www.fao.org/docrep/004/y2785e/y2785e03.htm
article
article
http://www.chelanpud.org/591.html
article
http://www.nwp.usace.army.mil/portals/24/docs/pubs/salmon.pdf
article
http://www.nytimes.com/2015/09/03/opinion/an-ancient-fish-is-running-out-of-time.html?_r=0
article
https://www.youtube.com/watch?v=1O2zy0BFAog
Check out this invention that shoots spawning salmon over man made obstacles as they swim upstream.
https://www.youtube.com/watch?v=0uNa4_4sGEs
A transport company is turning the idyllic sight of salmon swimming upstream into a high-speed thrill ride with a fish transportation device called the salmon cannon. Jen Markham explains.
https://www.youtube.com/watch?v=CZExUiOf3u8
PGE’s new floating surface collector helps fish migrate downstream. See how it works and what it took.
https://www.youtube.com/watch?v=WV-AHKMbQRk
Unlike your typical salmon that dies after it spawns, steelhead can actually repeat spawn like freshwater trout and these repeat spawning steelhead are called kelts. After spawning, kelts act like a giant smolt (juvenile salmon) and drift back out to the ocean to start the cycle over again. Unfortunately, a lot of them aren't making it back to their spawning grounds a second or third time because of predators, poor river conditions and exhaustion. So biologists at the Yakama Nation's Salmon hatchery in Prosser, Washington have been intercepting kelts and reconditioning them so they're healthier and stronger, and more likely to make the trip back home again.
https://www.youtube.com/watch?v=ixguQmFNNmg
Water is a precious commodity in the Columbia Basin. Now water users, tribes, agencies and local conservation districts are collaborating on Manastash Creek so both fish and farmers get the water they need. This is but one recent example of groups working together in the Yakima Basin to protect, conserve and otherwise make the most of the Basin's limited water resources. This project will be dedicated to the memory of Washington environmental attorney John Arum, who was instrumental in its development
look at vidoes on you tube- had several tagged but lost them