BIOMES

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RIVERS
AQUATIC
LAKES
BIOMES
WETLANDS
OCEANS
Created by Jill Lenten
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REGIONS OF THE AQUATIC BIOME
The aquatic biome covers 75 of the earths
surface.
MARINE
FRESHWATER
Lake Superior
Pacific Ocean
TEMPERATURE Although water
temperatures can vary widely, aquatic areas tend
to be more humid and the air temperature on the
cooler side.
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Variants/Factors in Aquatic Biomes

• salinity
• depth (pressure)
• light
• temperature

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Marine biome

• 75 of Earth is water
• Contains the largest amount of biomass
• Oceans vary in light, pressure, temperature and
  nutrients.
• lack of sediments in the water is a key factor
  for marine species light

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Most important features in marine biomes.

• LIGHT!

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Ocean layers

• Euphotic Zone- surface waters
• Nutrient-rich water
• producers
• Aphotic Pelagic Zone- no light
• (below 650 feet)
• Benthic Zone- sea floor
• Sessile organisms (attached to sea floor)

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Photic Zone

• Water penetrated by light
• Includes open ocean
• Plankton

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Aphotic zone

• Dark
• High pressure
• 90 of ocean
• Adapted to living
• in the deep

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Freshwater Biomes

• Plant life
• shoreline
• Shallow water highly productive
• Temperature varies with depth
• Light
• Deep lakes no photosynthesis
• Decay
• Takes place on the bottom
• Decomposers (bacteria) recycles nutrients