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IELTS Free Online Writing Practice - Question Is overfishing the greatest threat to marine ecosystems?

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Question: "Is overfishing the greatest threat to marine ecosystems?"

Model Answer: Overfishing is indeed a significant threat to marine ecosystems, but it is important to consider other factors that contribute to their decline. While overfishing has caused severe depletion in certain species and disrupted the balance of food chains, it is not the sole factor responsible for the deterioration of these ecosystems.

One of the main reasons overfishing is considered a significant threat is the rapid depletion of fish stocks due to unsustainable fishing practices. This can lead to the collapse of entire populations and disrupt the balance of marine food chains. Overfishing also has a knock-on effect on other species in the ecosystem, such as seabirds and marine mammals that depend on fish as their primary food source. Additionally, it is worth noting that overfishing can have economic consequences, particularly for coastal communities that rely heavily on the fishing industry for their livelihoods.

However, there are other factors that contribute to the decline of marine ecosystems, such as pollution, climate change, and habitat destruction. Pollution in the form of plastic waste and chemical contaminants can harm marine life directly through ingestion or indirectly by altering the balance of ecosystems. Climate change has a profound impact on marine life, causing shifts in migration patterns, changes in breeding seasons, and even mass mortality events. Lastly, habitat destruction, whether due to coastal development or destructive fishing practices such as bottom trawling, can lead to loss of critical habitats for many marine species.

In conclusion, while overfishing is indeed a significant threat to marine ecosystems, it is crucial to acknowledge and address other factors that contribute to their decline. A comprehensive approach to environmental conservation must take into account not only sustainable fishing practices but also the mitigation of pollution, climate change adaptation, and habitat protection in order to preserve the health and diversity of our oceans.

Overall Band Score: 8

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