Overfishing has significant negative impacts on marine ecosystems. It can lead to the decline of fish populations, disrupt food chains, and alter the balance of marine ecosystems. Overfishing can also result in the loss of biodiversity, as certain species are targeted more than others, leading to imbalances in the ecosystem. Additionally, overfishing can have economic impacts on fishing communities and industries that rely on healthy fish populations for their livelihoods. To mitigate these impacts, sustainable fishing practices and regulations are essential to ensure the long-term health of marine ecosystems.