How does overfishing impact aquatic ecosystems?

Overfishing significantly impacts aquatic ecosystems primarily by depleting fish populations. When fishing activities exceed the sustainable levels of fish populations, it leads to a significant reduction in their numbers. This depletion disrupts the balance of the ecosystem, as many species rely on fish for food, including larger predators and scavengers.

Reduced fish populations can also have a cascading effect on the entire food web. For instance, with fewer fish, the populations of organisms that prey on them may decline, leading to potential overpopulation of their prey species. This imbalance can negatively affect the health of marine habitats, such as coral reefs and seagrass beds, which depend on a stable fish population for nutrient cycling and habitat maintenance.

In addition, lower fish populations can also disrupt fishing-related economies and community livelihoods that depend on abundant fish stocks. Sustainable management practices are crucial to prevent overfishing and maintain the health of aquatic ecosystems.