AquaticEcosystems_part_I

AquaticEcosystems_part_I - Patter ns i n Aquati c E...

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Patterns in Aquatic Ecosystems Shallow vs Deep Fresh vs Salt Swift vs Stagnant Changing vs Constant Ephemeral vs Permanent Limnology vs Oceanography
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Patterns of Aquatic Ecosystems Important Properties of Water Types of Organisms Freshwater Ecosystems Marine Ecosystems Transition Areas
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Important Properties of Water High specific heat Warms and cools slowly Large amount of heat necessary to raise temperature Reaches max density at 4 o C Ice floats Warm water above cold water
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Properties of Water… Light attenuates quickly Photosynthesis only in shallow waters
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Properties of Water 800x more dense than air Organisms still more dense Need buoyancy
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Properties of Water More viscous than air More energy to move through water Leads to streamlined shapes
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Properties of Water Phosphorus and Nitrogen limiting nutrients Less oxygen than air Enters at surface and via photosynthesis Cold water holds more Carbon dioxide and buffering
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Properties of Water High surface tension Can have organisms on surface
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Types of Organisms Can classify based on mode of life/ location Can classify based on trophic mode
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AquaticEcosystems_part_I - Patter ns i n Aquati c E...

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