What is a possible consequence of fertilizer runoff in aquatic ecosystems?

Answer 1

One possible consequence of fertilizer runoff in aquatic ecosystems is eutrophication, which is the excessive growth of algae and other aquatic plants. This can result in decreased oxygen levels in the water, leading to fish kills and the death of other aquatic organisms. It can also lead to the formation of harmful algal blooms that produce toxins harmful to humans and wildlife. Additionally, fertilizer runoff can alter the nutrient balance in aquatic ecosystems, causing long-term ecological changes that can be difficult to reverse.