Ocean Environment The ocean is divided into two

Ocean Environment

The ocean is divided into two general environments. divided into two general • The ocean environments. is divided into two general environments. The ocean is divided into two general environments. Benthic environment is classified into five zones. • Pelagic Benthic environment is classified into five environments is classified into two major zones. • Pelagic environments is classified into two major zones.

The benthic zones are……………. Internal zone, lies between the low tide and high tide lines. Sub littoral zones, continuously submerged zone located and the continental shelves is dominated by sea stars, brittle stars, and sea lilies. Bathyal zone begins at the continental slope and extends to depth of 4, 000 meters. Abyssal zone which has no light begins where the bathyal zone ends and extends to depth of 6, 000 meter. Hadal zone is confined to the ocean trenches, which are deeper than 6, 000 meters.

The pelagic zones are ……………… Neritic zone- is located above the continental shelves. Ocean zone- extends into deep and open ocean waters beyond the continental shelves.

Ocean Food Of all the resources that the ocean is capable of supplying the one in greatest demand is protein–rich food. At present a large part of the population of the world has a starchy diet. Such a diet can maintain life, but the lack of protein to build strong tissue s decreases the ability of a person body to fight disease perhaps half a billion people in the world suffer some form of diseases causes by source of highprotein food Is fish from the ocean How ever many ocean areas are already over fished and in decline.

• Pollution • But the growth of the population and the increased use of more toxic substances have change the situation. The ability of the ocean to absorb wastes and renew itself cannot match the in creasing amount of water of waste that is being produced worldwide • Productive coastal waters are in the greatest danger. pollution has destroyed clam and oysters beds in some local areas.

Desalination is the extraction of fresh water from salter. One method of desalination now used is distillanation which involves heating ocean water to remove the salt. Heats causes the liquid water to evaporate leaving dissolved salts behind. When the water vapor condenses the result is pure fresh water.

Aquaculture the farming of the ocean will be come an important source of food production. Aquaculture involves developing and raising special breeds of marine animals and plants that yield large amounts of food. A major problem for aquaculturalist is that the ocean forms would be susceptible to pollution and may them selves be local source of pollution.