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Aquatic Ecology: Biodiversity in Aquatic Systems. G. Tyler Miller’s Living in the Environment 13 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 ecology biodiversity in aquatic systems l.jpg
Aquatic Ecology: Biodiversity in Aquatic Systems

G. Tyler Miller’s

Living in the Environment

13th Edition

Chapter 7


Key concepts l.jpg
Key Concepts

  • Factors that influence aquatic systems

  • Saltwater life zones

  • Freshwater life zones

  • Human activities that affect aquatic systems


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Aquatic Environments: Types, Components, and Limiting Factors

  • Marine systems

  • Freshwater systems

  • Plankton

  • Nekton

  • Benthos

  • Euphotic zone

  • Dissolved oxygen

Fig. 7-2 p. 145


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Saltwater Life Zones Factors

  • Coastal zone

  • Estuaries

  • Coastal wetlands

  • Mangroves

  • Intertidal zones

  • Barrier islands


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Ocean Zones Factors

Fig. 7-7 p. 148

Refer to Figs. 7-11 & 7-12

p. 151 & 152


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Coral Reefs Factors

Fig. 7-16

p. 154


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Freshwater Life Zones Factors

  • Standing water

  • Flowing water

Fig. 7-20 p. 158


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Fig. 7-21 p. 158 Factors

Types of Lakes: Oligotrophic


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Fig. 7-21 p. 158 Factors

Types of Lakes: Eutrophic


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Fig. 7-22 p. 159 Factors

Seasonal Changes in Lakes

  • Epilimnion

  • Thermocline

  • Hypolimnion

  • Fall overturn

  • Springoverturn


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Fig. 7-23 p. 160 Factors

River Systems

  • Drainage basin

  • Runoff

  • Floodplain

  • Watershed


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Inland Wetlands Factors

Fig. 7-25 p. 162


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Sustainability of Aquatic Life Zones Factors

  • Coral reef destruction

  • Loss of biodiversity

  • Pollution

  • Sedimentation

  • Renewability

  • Natural purification


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