Eutrophication of water bodies leading to killing of fishes is mainly due to
Answers
Answer:
accumulation of harmful toxic substances which can't be excreted out from our body . these substances can be accumulated on the body and increase with successive tropic levels . mercury is the substance that can be accumulated and may cause the death of fishes
Answer:
Eutrophication of water bodies leading to killing of fishes is mainly due to lack of oxygen
Explanation:
Lakes are eutrophied by sewage, agricultural and industrial wastes. The prime contaminants are nitrates and phosphates, which act as plant nutrients. They overstimulate the growth of algae, causing scum and unpleasant odours, and reduce the amount of dissolved oxygen vital to other aquatic life. At the same time, other pollutants flowing into a lake may poison whole populations of fish, whose decomposing remains further deplete the dissolved oxygen content. In such fashion, a lake can literally choke to death.
Eutrophication of water bodies leading to killing of fishes is mainly due to lack of oxygen