In a pond ecosystem, fish release ammonia as an excretory product, which is highly toxic.
Ammonia can make water unfit for the survival of the fish and other aquatic organisms.
However, in nature, the level of ammonia in ponds is generally maintained at low levels.
What helps in maintaining the level of ammonia?
O
Ammonia is converted to elemental nitrogen by bacteria present in the root nodules
of water plants.
Ammonia is converted by bacteria into nitrogen compounds that can be consumed
by plants.
The salts in pond water react with ammonia, causing it to settle on the bottom of
the pond.
The leaves of water plants absorb ammonia, removing the toxic substance from the
pond water.