HabitatsMarinePart1 - Marine Habitats habitat zonation in...

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Marine Habitats habitat zonation in the sea life styles of the wet and salty challenges of the “life aquatic” coastal features
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Habitat Zonation in the Sea Alternative approach: minimize jargon horizontal: vertical: continental shelf, continental slope, oceanic light: euphotic, aphotic, total darkness depth: intertidal (littoral), subtidal, oceanic
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Habitat Zonation in the Sea (< 200 m) Oceanic Pelagic zone water column horizontal zonation
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Vertical Zonation (depth, tide) intertidal: daily cycle of wet and dry subtidal: always wet vertical zonation
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Intertidal Zonation low tide mark high tide mark barnacle zone algae zone two examples of ecological zonation low tide
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Intertidal Zonation Why aren’t there any mussels above or below? upper limits: too dry (dessication, not enough food) lower limits: too dangerous (killers of the subtidal) low tide
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Intertidal Zonation sea star (starfish): mussel hunters tube feet
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Habitat Zonation in the Sea Light intensity (µmoles photons/m 2 /sec) Depth (m) photosynthesis vision vertical zonation
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0 20 40 60 40 20 0 1000 2000 3000 4000 5000 Latitude Depth (m) total darkness: >600m euphotic zone: ≤100m aphotic zone: ≤600m Vertical Zonation (light)
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dragonfish total darkness: >600m Vertical Zonation (light) anglerfish bioluminescence
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HabitatsMarinePart1 - Marine Habitats habitat zonation in...

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