Coastal communities depend on healthy marine ecosystems for their livelihoods, particularly for fishing, which provides food and economic stability. When oceans are balanced and diverse, fish populations thrive and can be sustainably harvested. However, practices like overfishing or pollution from nearby land—such as chemical runoffs, plastics, or untreated waste—disrupt these natural systems. Such disturbances can reduce fish stocks, harm marine life, and ultimately threaten the long-term viability of the coastal communities that depend on them for survival.