What are Ocean Zones?
Types of Ocean Zones
Scientists have organized and classified the oceans into various zones, each with its own characteristics. These zones aren't known to the creatures that live in the sea and they ignore the boundaries readily. But scientists have organized the sea into layers because the living environment generally changes with each different layer. Each layer is usually distinguished by the amount of sunlight it receives, the depths it occupies, and the degree of hydrostatic pressure found there. The easiest way to think of hydrostatic pressure in the sea is to think of the weight of a gallon of water, approximately 8.8 pounds. When you dive into a body of water and dive down, there are a lot of gallons of water over the top of you, and all together they add up to a lot of weight. The deeper you dive into the water, the more gallons (and weight) of water is over the top of you. The pressure of the weight of the overlying water is the hydrostatic pressure at that depth.
To best experience these life zones as they affect life in the sea, imagine that you are a diver for the day. Put on a diving suit and scuba gear and climb into the ocean for a descent into the sea to experience the life zones. Our first stop - the sunlight zone...
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