Understanding the Contribution of Ecosystem Services in Maintaining Aquatic Habitat Quality

The aquatic ecosystem is currently undergoing drastic, pervasive degradation due to the combined effects of human pollution and climate change. Although traditional methods of assessing the condition of aquatic ecosystems often target individual chemical variables, they usually fail to take into consideration the weakening of biological functions essential to the ecosystem’s sustainability. The following paper explores the crucial link between the delivery of ecosystem services, including filtration, nutrient cycling, and carbon storage, and aquatic habitat quality. Through a systematic review of longitudinal studies conducted within coastal wetlands from 2006 to 2026, It used CICES classification criteria to compare the delivery of ecosystem services to measures of habitat quality, such as biodiversity and dissolved oxygen content. As a result, a strong positive correlation (r = 0.83, p < 0.01) was found between ecosystem service delivery and habitat quality. Moreover, it shows that the loss of these particular services leads to a feedback cycle of deterioration, which exponentially quickens habitat destruction past certain threshold values. It suggests that shifting from a reactive form of restoration to one that involves more proactive management based on services is necessary for sustainability. It proposes using service delivery thresholds in regulatory monitoring regimes, creating dynamic buffer zones, and implementing selective Payment for Ecosystem Services (PES) programs aimed at protecting these functional "hotspots."