How does an algal bloom deplete the oxygen supply?
The larger population of algae absorb all of the oxygen during the process of photosynthesis.
As the larger population of algae die, a larger population of decomposers use up oxygen while decomposing the algae.
The larger population of algae can no longer photosynthesize and release oxygen.
The larger population of algae cover the surface of the pond so oxygen does not get into the water.
1 answer
As a result of these processes, the oxygen supply in the water is depleted, leading to hypoxic or anoxic conditions which can be harmful to aquatic life.