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Introduction to Limnology
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Setting the Stage: Water as an Environment

Chapter Summary

   The Diversity of Limnological Organisms
   Fundamental Characteristics of Water as a Substance
Molecular Shape
Polarity
Viscosity
Surface Tension
Solvent
   Solubility of Gases
   Dissociation and pH
   Redox Potential
   Chemicals Dissolved in Water
Density
Heat
Cooling and Evaporation
Summary of Critical Limnological Numbers
       Vertical Stratification in Lakes
Vertical Profiles of Temperature
   Measurement of Temperature in Lakes
   Patterns of Vertical Temperature Profiles
   Annual Mixing Patterns
   Ice Cover and Lake Size
Vertical Profiles of Oxygen
   Measurement of Oxygen in Lakes
   Patterns of Vertical Oxygen Profiles
Vertical Profiles of Light
   Measurement of Light in Lakes
   Pigments
   Scattering
   Absorbance
Vertical Profiles of Living Organisms
   Algae Patterns
   Macrophyte Patterns
   Bacteria Patterns
   Zoobenthos Patterns
   Zooplankton Patterns
   Fish Patterns
Vertical Profiles of Primary Productivity
Interaction of Heat and Light with Organisms
       Water Movements
Diffusion
Mass Transport
   Laminar Flow and Zero Flow
   Turbulent Flow
   Reynolds Number
   Horizontal Currents
Periodic Movements
   Surface (Progressive) Waves
   Seiches (Standing Waves)
   Lunar Tides
       Study Guide