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15 Cards in this Set

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Thomas McCallister






Hydrothermal vents











Definition

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

Definition


An upward flow of cold water from the ocean depths

Neritic zone

Definition


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

Open Ocean Zone

Definition


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

Plankton

Definition


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

Nekton

Definition


Free-swimming animals that can move throughout the water column

Benthos

Definition


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

Internal Zone

Definition

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

Definition

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

Aquaculture

Definition

the farming of salt and freshwater organisms

Estuary

Definition

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


Surface Zone

Definition

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

Deep Ocean Zone

Definition

begins when the sunlight no longer reaches the water (at the end of the surface zone); it is dark and cold

Surface Currents

Definition

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

Bioshpere

Definition

the part of the earths crust, waters, and atmosphere that supports life