How does that decline in world fisheries represent a tragedy of the commons?

The decline in world fisheries exemplifies the tragedy of the commons as it highlights the overexploitation of a shared resource by individuals acting in their self-interest. When fish stocks are treated as a common resource, each fisher benefits from catching as many fish as possible, leading to depletion. Without effective regulation or management, this unsustainable practice results in diminished fish populations, ultimately harming the entire fishing community and ecosystem. Consequently, the failure to collaborate and manage the resource collectively leads to long-term environmental and economic consequences for all.