Q. What are the forces that influence ocean currents? Describe their role in the fishing industry of the world. [250 Words, 15 Marks] 2022

 

Q. What are the forces that influence ocean currents? Describe their role in the fishing industry of the world. [250 Words, 15 Marks]  2022 

Answer: 

Approach: Introduction Write about Ocean Current in brief. Body Mention the forces that influence ocean currents. Write about the impact of Ocean Current on the Fishing Industry. Conclusion Conclude your answer with the importance of ocean current with a futuristic Approach.

Introduction:

Ocean currents are the continuous, directed movements of seawater. They play an essential role in the earth’s climate and weather patterns, as well as in the distribution of marine life.

Forces influence ocean currents:

• Wind: Wind is one of the primary forces that drive ocean currents. The direction and intensity of the wind determine the direction and speed of the currents.
• Temperature: Differences in water temperature between different regions of the ocean create density gradients, which drive the movement of water.
• Salinity: Variations in salinity levels also create density gradients, which affect the movement of water.
• Earth rotation: The Coriolis effect, which is the result of the earth’s rotation, causes ocean currents to move in a clockwise direction in the northern hemisphere and a counter clockwise direction in the southern hemisphere.
• Atmospheric pressure: Differences in air pressure can affect ocean currents by changing the direction and intensity of the wind.

             The fishing industry is heavily dependent on ocean currents as they affect the                  distribution and abundance of fish stocks.

• Fish industries develop at the junction or meeting point of cold and warm currents as there is large concentration of phytoplanktons. Examples :- Near the coast of Japan.
• Fish tend to concentrate in areas with favorable environmental conditions, such as areas with abundant food, oxygen, and suitable temperature and salinity levels. Ocean currents play a significant role in the distribution of these favorable conditions, which affect the spread and abundance of fish stocks.Like Gulf Stream.
• Ocean currents maintain ecological balance by transferring water to areas of less oceanic current and having low fish population to maintain oxygen level and fish in the deficit area. Like Equatorial Current.
• Fishing boats and fleets use ocean currents to track and locate fish, which helps to increase their catch rates.like Atlantic Drift.

Conclusion:

Ocean currents are driven by various forces. Ocean currents play a critical role in Earth climate and weather patterns, as well as in the distribution of marine life. It is essential to understand and monitor ocean currents to ensure sustainable fishing practices and the long-term health of marine ecosystems.