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15 Cards in this Set

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hydrothermal vents

an area where ocean water sinks through cracks in the ocean floor , is heated by the underlying magma ,and rises again through the cracks.

upwelling

an upward flow of cold water from the ocean depths

neritic zone

the part of the ocean that extends from the low-tide line out to the edge of the continental shelf

open ocean zone

the area of the ocean beyond the edge of the continental shelf

plankton



tiny algae and animals that float in water and are carried by waves and currents

nekton

free swimming animals that can move throughout the water column

benthos

organisms that live on the bottom of the ocean or other body of water

inertial zone

the area that stretches from the highest high-tide line on land out to the point on the continental shelf exposed by the lowest tide

sonar

a systm that uses sound waves to calculate the distance to an object

aquaculture

the farming of saltwater and freshwater organisms

estuary

a costal inlet or bay where fresh water from rivers mixes with salty ocean water

surface zone

extends as far as sunlight reaches below the surface it is the only part of the ocean that receives enough sunlight for the growth of algae

deep ocean zone

begins when the sunlight no longer reaches the water at the end of the surface zone its dark and cold

surface currents

is a large stream of moving water at the surface that flows through the ocean ;are mainly driven by winds

biosphere

the part of the earths crust and atmosphere that supports life