1. A distinct region of the ocean characterized by specific depth, temperature, light, and pressure conditions
The twilight zone is an ocean zone where sunlight begins to fade.
A zona crepuscular é uma zona oceânica onde a luz solar começa a desaparecer.
2. Any of the vertical divisions of the ocean, such as epipelagic, mesopelagic, bathypelagic, etc.
Different species of fish inhabit different ocean zones.
Diferentes espécies de peixes habitam diferentes zonas oceânicas.