Answer:
A decline in the bacterial population will be observed. It is possible after a long time that these bacteria become resistant to those antibiotics
Sorry if this isn’t right but I believe it’s Protista
Eutrophication results in the death of trout and other fish as a result of asphyxiation from the lack of oxygen. Eutrophication involves the enrichment of water by nutrients salts such as phosphates, nitrates among others, that causes structural changes of the aquatic ecosystem such as; increased production of algae and aquatic plants, depletion of fish species, deterioration of water quality and other effects that impact negatively the aquatic ecosystem.