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Related Flashcards
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Cards In This Set
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Terrestrial Biomes
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Ecosystems on land
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Boundaries of aquatic biomes are?
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Gradual, primarily vertical,
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Boundaries of freshwater biomes are?
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Sharper, smaller boundaries
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Buoyancy
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"cheaper" (nrg) to live in aquatic biome (b/c you float)
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Oxygen in aquatic biomes
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Less abundant than terrestrial biomes, vertically stratified, more oxygen near surface
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Nutrients in aquatic biomes
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Less abundant than terrestrial biomes, vertically stratified, more nutrients near bottom
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Upwelling
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Water/air which forces cold nutrient-rich water from bottom to top of an aquatic biome
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Temp. Fluctuations (Water vs. Air)
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Temp. fluctuates more in air than in water
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Photic Zone
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Depth exposed to significant light to conduct photosynthesis
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Aphotic Zone
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No light, diverse and dense population of inhabitants
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How of much of Earth is oceans?
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75%
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Ocean is divided into zones depending on...
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Light, depth, and proximity to land
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What zones is the ocean divided into?
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Pelagic, Benthic, Littoral
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Pelagic Zone
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Open ocean, supports highly mobile animals, phytoplankton and zooplankton float here.
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Plankton
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Most abundant aquatic organisms (phytoplankton and zooplankton)
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