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IELTS Free Online Writing Practice - Overfishing The Greatest Threat to Marine Ecosystems?

IELTS.WORK Free Online Writing Practice # 1711664013

Overfishing: The Greatest Threat to Marine Ecosystems?

In recent years, the issue of overfishing has been a major concern for environmentalists, governments, and the general public. This essay will discuss whether or not overfishing is indeed the greatest threat to marine ecosystems. While it is true that overfishing has had a significant impact on the world's oceans, it is crucial to consider other factors such as pollution, habitat destruction, and climate change, which can also have devastating effects on marine life.

To begin with, overfishing has led to the depletion of many fish populations worldwide. As a result, some species have become endangered or even extinct. This imbalance in the food chain can have knock-on effects throughout the ecosystem, leading to further declines in biodiversity. For example, when too many sharks are removed from an ecosystem, the number of rays and other bottom-dwelling organisms increases, resulting in a decline in seagrass beds and coral reefs.

On the other hand, pollution poses a significant threat to marine ecosystems. The release of industrial waste, agricultural runoff, and plastic waste into the oceans has led to the contamination of waterways, causing harm to marine life and disrupting their natural habitats. In some cases, pollutants can even accumulate in the tissues of sea creatures, leading to serious health issues or death.

In addition to overfishing and pollution, habitat destruction is another major concern for marine ecosystems. Coastal development, dredging activities, and dam construction can result in the loss of essential habitats such as mangroves, seagrass beds, and coral reefs. These habitats are critical for the survival and breeding grounds of numerous species. When these habitats are destroyed, it becomes challenging for marine life to recover, leading to long-lasting impacts on ecosystem health.

Lastly, climate change is an increasingly significant threat to marine ecosystems. Rising ocean temperatures, ocean acidification, and changes in current patterns can all have severe consequences for the world's oceans. For instance, warmer waters can lead to coral bleaching events, which result in the death of coral reef structures and the loss of essential habitats for many marine species.

In conclusion, while overfishing is undoubtedly a significant threat to marine ecosystems, it is important not to overlook other factors such as pollution, habitat destruction, and climate change that also have severe consequences on marine life. To protect these vital ecosystems, concerted efforts must be made by governments, industries, and individuals to reduce the impact of human activities on our oceans.

Model Answer Score:

- Task Response: 9 (The candidate has provided a relevant and well-structured response to the question)
- Coherence and Cohesion: 8.5 (The response is logically organized, but some improvements could be made in the coherence of arguments)
- Lexical Resource: 8 (The candidate uses a range of vocabulary accurately and appropriately, but there are occasional lapses in grammar and punctuation)
- Grammatical Range and Accuracy: 8.5 (Overall, the grammar is accurate, but there are a few minor errors that reduce overall clarity)

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