An aquatic ecosystem was rich in benthic microalgae and sea grasses. over the years, industrial pollutants have reduced these populations considerably. how would this affect the ecosystem? a) there would be no energy produced in the system. b) there would be more energy available in the ecosystem. c) it will increase the number of organisms at higher trophic levels. d) there would be less energy transferred to the higher trophic levels. an aquatic ecosystem was rich in benthic microalgae and sea grasses. over the years, industrial pollutants have reduced these populations considerably. how would this affect the ecosystem? a) there would be no energy produced in the system. b) there would be more energy available in the ecosystem. c) it will increase the number of organisms at higher trophic levels. d) there would be less energy transferred to the higher trophic levels.