Microplastics have a profound impact on aquatic ecosystems by introducing harmful materials into food webs. These small plastic particles can be ingested by marine organisms, leading to accumulation and potential toxicity in various species, including fish and shellfish. Their presence may disrupt nutrient cycling and damage habitats like coral reefs. Additionally, microplastics can transport harmful chemicals and pollutants through water systems, further exacerbating environmental degradation. Addressing the issue of microplastics is essential for protecting aquatic life and maintaining healthy ecosystems.