Answer:
The pond will be chocked by excess plant resulting in a dead system.
Step-by-step explanation:
An aquatic ecosystem, like a pond depend on the balance of suitable plants and vegetation. This maintains a correct balance in the composition of oxygen, nutrients, and light.
However, at times it happens that there is an overgrowth of the plant species. This usually happens when there is a nutrient enrichment from ammonia compounds, like sewage, or riverbed farming. This causes plants to grow out of control and "choke" the river system. As more plants grow, there will be no enough light to sustain the system. In addition, there will be no oxygen for the fish and other aquatic creatures. Eventually, the system becomes overgrown, stops flowing, and eventually becomes silted (filled with sand).