Impact Of Overfishing On Marine Ecosystems And Human Culture

Introduction Overfishing occurs when fish are being caught faster than they can reproduce and replace themselves (Lee and Safina, 1995, pg.5). It greatly affects biodiversity of marine ecosystems and human culture. Impacts of Overfishing Overfishing can impact marine ecosystems and communities that rely heavily on marine mammals. Large reductions in population sizes of marketable fish species caught yearly may significantly create economic stress within fishing communities, especially if they mainly rely on fish for income or food, such as 3rd world countries. If marketable fish population numbers drop too low fishermen and even whole communities may be forced to give up their way of life, which has been passed down from generation to generation, and find jobs elsewhere (Fisheries and Oceans Canada, 2009). Loss of income and jobs is caused from decreased population sizes, which lower productive fish stocks, and results in business closures and lowered economic status (Lee and Safina, 1995). Food security is also affected by overfishing. Many coastal communities depend on fish as their main food source. When consumable fish populations decrease the food supplies and food availability also decr ease, resulting in shortages to occur and fish becoming an unreliable source of food (World Wildlife Fund, 2016). Overfishing significantly impacts biodiversity within ecosystems. 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