Question 1
Overfishing which occurs witch occurs when more fish are caught than the population can replace through natural reproduction. This has serious consequences that can affect not only the balance of life in the oceans but also the social and economic well-being of populations who depend on fish for their way of life.
Overfishing in Freshwater
Fishing is a crucial source of livelihood in developing nations where they can mostly fish inland and also as a main source of food that provided protein. Overfishing has lead to some freshwater fish to become extinct especially those that are found close to the surface of the water that are large and can be easily captured. The Mekong giant catfish, which is possibly the world’s largest freshwater fish, is seriously threatened by overfishing.
Overfishing in freshwater has
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The lack of proper reporting of overfishing in freshwater has lead it to not being regarded as a bigger crisis than it actually is because more focus is on marine life. Overfishing in Saltwater
Due to the fact the majority of the earth’s surface is covered in salt water (oceans) this has lead to many people to see it as a good source of food from the fish that is available but its fast becoming a crisis as it has lead to overfishing.
According to marine ecologist, overfishing is the greatest threat to ocean ecosystem today. This has increased over the years because the fishing effort has been greater. This has been brought about because of the following;
• The structure of the ship has increased and nets are bigger and can go deeper in the ocean.
• Fishing technology has improved such as the use of sonar and GPS to locate schools of fish.
• More time can be spent in the ocean fishing
• Demand for certain species of fish e.g Blue fish