Lake Water Chemistry - PowerPoint PPT Presentation

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lake water chemistry l.
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Lake Water Chemistry

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  1. Lake Water Chemistry • Phosphorus • Nitrate • Silica

  2. Chemical Interests • Lake Production • Levels Often Predict Entire Food Web • Direct Effects on Spec. Cond., D.O., etc. • Biotic Composition • Direct/Indirect Relationships • Visual Effects

  3. Phosphorus • Total Phosphorus • Onondaga Very High in Hypo. • Green’s Mono Layer • Catlin and Wolf Oligotrphic

  4. Phos. Cont.

  5. Nitrate

  6. Green Lake Nitrate

  7. Arbutus Lake Nitrate • Mostly Human Input • Deeper High Levels From Density Differences • Wolf Lakes Epi Levels High From Runoff

  8. Silica Concentrations • Concentration Effects Algal Blooms • Occurs From Weathering of Rocks • Cycle Not As Well Known As Others

  9. Green Lake Silica • Very High Concentrations Compared to Other Lakes • Chemo and Mono Layer • Overall Depth

  10. Conclusion • Several Factors Effect the Concentrations of Chemicals Found Within a Lake. • Catchment • Physical Features • Paleolimnology • Anthropogenic Influences • Each of These Factors Then Effects The Rest of The lakes Biotic and Abiotic Features