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Aquatic Biodiversity . G. Tyler Miller’s Living in the Environment 14 th Edition Chapter 7. Key Concepts. Factors that influence aquatic systems. Saltwater life zones. Freshwater life zones. Human activities that affect aquatic systems.
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Aquatic Biodiversity G. Tyler Miller’s Living in the Environment 14th Edition 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. 128
Saltwater Life Zones • Coastal zone • Estuaries • Coastal wetlands • Mangroves • Intertidal zones • Barrier islands
Ocean Zones Fig. 7-6 p. 131
Coral Reefs Fig. 7-12 p. 136
Freshwater Life Zones • Standing water • Flowing water Fig. 7-16 p. 139
Types of Lakes: Oligotrophic Fig. 7-17a, p. 139
Types of Lakes: Eutrophic Fig. 7-17b, p. 139
Life Zones in Lakes Littoral zone Limnetic zone Profundal zone Benthic zone
Stream Systems • Runoff • Drainage basin • Watershed • Floodplain Fig. 7-18 p. 140
Wetlands Importance of Wetlands Types: Marshes Swamps Prairie Potholes Floodplain Tundra Seasonal
Human Impacts on Wetlands and Streams Dams, diversions and canals Flood control levees and dikes Pollution and Eutrophication Wetland destruction