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The Blue Planet

Medium11×1114 words

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Clues in this puzzle

A highly intelligent, eight-armed cephalopod capable of complex camouflage (7)
Simple aquatic organisms that produce much of the planet's oxygen (5)
Describing the vast, high-pressure zones of the ocean far below the surface (4)
Organisms that live on or near the ocean floor (7)
The primary mineral dissolved in seawater that gives it its characteristic taste (4)
A climate pattern involving unusual warming of surface waters in the eastern Pacific (6)
The periodic rise and fall of sea levels caused by gravitational forces of the moon and sun (4)

Drifting organisms that inhabit the water column and cannot swim against the current (8)
A ridge of jagged rock, coral, or sand just above or below the water surface (4)
A popular cold-water food fish that drove historical trade in the Atlantic (3)
The rising of cold, nutrient-rich water from the deep ocean to the surface (9)
A giant wave train caused by an underwater earthquake or volcanic eruption (7)
An opening on the seafloor that spews mineral-rich, superheated water (4)
A large system of rotating ocean currents, often trapping plastic waste (4)