Ocean Zones

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Ocean Zones
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Continental Shelf

• Gradually sloping attached to continent

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Continental Slope

• Steady incline

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Abyss

• A cavity

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Mid Ocean Ridge

• Underwater mountain range- formed by sea floor
  spreading

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Abyssal Plain

• Vast, flat plain

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Guyot

• Flat topped sea mount

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Seamount

• Underwater mountain

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Ocean Trench

• Deep canyon

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Sonar

• Sound navigation and ranging- uses sound to
  calculate distance

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Intertidal Zone

• Between high and low tides. Changes in salinity,
  temperature, underwater exposed to air

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Neritic Zone

• From low tide to the end of the continental
  shelf. Shallow, lots of sunlight

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Open Ocean

• Water beyond the edge of the continental shelf

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Plankton

• Tiny algae animals that float in the water (ex-
  diatoms)

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Nekton

• Free swimming animals that can move about (ex-
  dolphin fish)

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Benthos

• Organisms that live on the ocean floor (ex-
  sponges lobsters)

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Food Web

• All of the relationships that exist in a habitat

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Estuary

• Coastal inlets where water from rivers (fresh)
  mixes with salty ocean water--- brackish (partly
  fresh, partly salty)

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Atoll

• Ring shaped coral reef surrounding a lagoon

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Bioluminescence

• Production of light by living things

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Hydrothermal Vent

• Hot water rises out of the cracks in the ocean
  floor is heated by the underlying magma

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Aquaculture

• The farming of saltwater and freshwater organisms

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Nodule

• A lump of metal that forms on shells

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