Learn This About The Aquatic Biomes

Organisms that are terrestrial are generally limited by temperature and moisture.
Terrestrial biomes are defined in terms of these abiotic factors.
Some aquatic organisms do not struggle for survival in extreme temperature or moisture, instead the only thing that limits them is the ability of sunlight and the concentration of dissolved oxygen and nutrients in the water.

Factors such as this could vary from place to place in the water body and are used to define the aquatic biomes.

The water inside the ocean or lake could be divided into zones based on the rays of sunlight it receives.

1. The first of such is the photic zone:

This zone extends to a maximum of depth of 200 meters below the surface of water.
In this zone there is enough sunlight which penetrates for photosynthesis to be carried out.

.2. The aphotic zone is second and it is the last zone.
It is water deeper than 200 meters.
It is the zone where little or no sunlight penetrates for the purpose of photosynthesis to occur,
Because of this food at this depth could be made by only chemosynthesis or infiltrate from the water above.

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