Oceans-Meaning,Types And Economic Importance

Oceans occupies over 70 percent or 360 million square kilometres of the earth’s total area of 510 million square kilometres.

Wave, Water, Surf, Ocean, Sea, Spray
ocean photo credit pixabay

 

Oceanography is the study oceans, the water in the oceans,the movement of water and the economic significance of the ocean.The depth of the ocean is measured by a technique called Echo sound technique but this has been replaced by the radar sound technique.

TYPES OF OCEANS

There are four main types of oceans in the world and the rest constitute the seas.

  1. Pacific ocean which occupies about 165 million km square
  2. Atlantic ocean which occupies 82 million km square
  3. Indian ocean which occupies about 74 million km square
  4. Arctic ocean which occupies about 14 million km square
  5. The seas which occupies 25 million km square

NOTE: Pacific ocean is the largest of all the oceans in the world

 

ECONOMIC IMPORTANCE OF OCEANS TO MAN

Means of transportation: Oceans are used in the world as a major means of transportation and communication between countries during international trade.

Ship, Boat, Lake, Sailing Boat, Italy
ocean transport photo credit pixabay

 

Tourism: Oceans,especially around the beaches and coasts are centres of tourist attraction e.g the bar beaches

Beach, Dominican Republic, Caribbean
tourism photo credit pixabay

 

Provision of food: Ocean also provide food for man especially proteins in form of fish,prawn,crabs,crayfish etc.

Prawn, Seafood, Shrimps, Asian, Culinary
prawn(sea food) photo credit pixabay

 

Provision of employment: Ocean also provide employment to many people e.g fishermen,sailors and ship builders.

Fishermen, Fishing, Sea, Asia, Vietnam
fishermen photo credit pixabay

 

Development of seaport: Seaports which have terminal points for ships are located on the coast e.g In Nigeria they have Apapa port in Lagos

Container Port, Port, Coast
seaport photo credit pixabay

 

Promotion of economic activities: International trade is made possible through oceans and many other economic activities such as ship building,transport.

Hong Kong, Sea, Ship, City, Travel, Asia
ship building photo credit pixabay

 

Extraction of salt: Ocean water provides the raw materials from which domestic and industrial salts are extracted.

Salt, The Smoke, Vietnam, Field
ocean salt photo credit pixabay

 

Sources of minerals: Some minerals like petroleum and natural gas are associated with the ocean. e.g In the continental shelf.

Oil, Drilling, Offshore, Platform
ocean oil drill photo credit pixabay

 

Provision of industrial products: Some seaweeds are known to be used by certain industries for the production of cosmetics.

Makeup Brush, Make Up, Brush, Cosmetics
cosmetics from seaweed photo credit pixabay

 

Educational research: The ocean also provides a means for research in aquatic plants and animals that are useful to man e.g Institutes of oceanography and marine research.

Seashell, Shellfish, Shells, Texture
shale for educational research photo credit pixabay