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Water Chemistry of Local Lakes

Water Chemistry of Local Lakes. Mike Bednarski, Danielle Tommaso & Dan Zapf. Why Chemistry?. Nutrients Basis of food chain Trophic state analysis. http://www.kenshowalter.com/26413.html. What did we do?. Sampled six lakes Water sampling Back at the lab Phosphorous analysis.

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Water Chemistry of Local Lakes

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  1. Water Chemistry of Local Lakes Mike Bednarski, Danielle Tommaso & Dan Zapf

  2. Why Chemistry? • Nutrients • Basis of food chain • Trophic state analysis http://www.kenshowalter.com/26413.html

  3. What did we do? • Sampled six lakes • Water sampling • Back at the lab • Phosphorous analysis http://www.cnr.vt.edu/fisheries/afs/fisheries_techniques/Chapter4/Removal%20of%20water%20from%20a%20kemmerer%20water%20sampler.jpg

  4. Results

  5. What does it all mean? • Phosphorous indicator of : • Nutrient amount in lake • Trophic state • Eutrophic • Mesotrophic • Oligotrophic • Dystrophic

  6. Eutrophic Lakes • High Phosphorous • Very productive • Algae blooms • Onondaga Lake, Oneida Lake http://upstatefreshwater.org/html/onondaga_lake.html http://visibleearth.nasa.gov/data/ev27/ev2795_S2000104100904_md.jpg

  7. Mesotrophic Lakes • “Middle fed” • Mid-nutrient levels • Mid-productivity

  8. Oligotrophic Lakes • Low phosphorous • Low productivity • Clear water • Green Lake, Catlin Lake http://remote.ucdavis.edu/remote%20images/Tahoe/Tahoe_view.jpg

  9. Dystrophic • “Black water stained” lakes • Suspended organic material • Rich Lake, Arbutus Lake http://www.esf.edu/research/sponprog/reports/research/photos/forprop.jpg

  10. What else? • Measure other parameters to further understand trophic states http://www.adirondacklakessurvey.org/pics/Arbutus.jpg http://www.nywea.org/clearwaters/gif/314040b.jpg

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