Question

Excessive nutrients in a fresh water body cause fish mortality. Give two reasons. [Delhi 2016]

Answer 1

Answer:

The presence of large amounts of nutrients in the water bodies lead to excessive growth of algae and cause Algal bloom.

Explanation:

The algal blood leads to deterioration of the quality of water, reduces dissolved oxygen and the hence leads to fish mortality.

Answer 2

Answer:

Excessive nutrients in a fresh water body cause fish mortality. ... The presence of large amounts of nutrients in the water bodies lead to excessive growth of algae and cause Algal bloom. The algal blood leads to deterioration of the quality of water, reduces dissolved oxygen and the hence leads to fish mortality.