Aquatic Ecology Biodiversity in Aquatic Systems

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					Aquatic Ecology: Biodiversity in
Aquatic Systems


           G. Tyler Miller’s
      Living in the Environment
               MATES
               Chapter 7
Key Concepts

 Factors that influence aquatic systems

 Saltwater life zones

 Freshwater life zones

 Human activities that affect
  aquatic systems
Aquatic Environments: Types,
Components, and Limiting Factors
 Marine systems
 Freshwater systems
 Plankton
 Nekton
 Benthos
 Euphotic
  zone
 Dissolved oxygen     Fig. 7-2 p. 145
Saltwater Life Zones

Coastal zone
Estuaries
Coastal wetlands
Mangroves
Intertidal zones
Barrier islands
Ocean Zones




  Fig. 7-7 p. 148

  Refer to Figs. 7-11 & 7-12
  p. 151 & 152
Coral Reefs




              Fig. 7-16
               p. 154
Freshwater Life Zones
 Standing water       Flowing water




              Fig. 7-20 p. 158
Types of Lakes: Oligotrophic




                      Fig. 7-21 p. 158
Types of Lakes: Eutrophic




                     Fig. 7-21 p. 158
Seasonal Changes in Lakes
 Epilimnion

 Thermocline

 Hypolimnion

 Fall overturn

 Spring
  overturn        Fig. 7-22 p. 159
River Systems
  Runoff            Drainage basin
  Watershed         Floodplain




  Fig. 7-23 p. 160
Inland Wetlands




           Fig. 7-25 p. 162
Sustainability of Aquatic Life Zones

 Coral reef destruction
 Loss of biodiversity
 Pollution
 Sedimentation
 Renewability
 Natural purification