In the deep oceans the environment is perpetually dark ..then what is the source of energy their?
The deep ocean environment where sunlight cannot reach, energy sources are available from
- The organic matters present in the upper photic zones sediments at the deep ocean beds providing source of energy for the organism present there.
- After the death of fishes and other aquatic organisms the dead bodies sediment at the bottom to provide huge amount of organic matters to the deep sea levels.
- There are several hydro thermal vents present at the bottom of the sea that emit chemicals. Some chemosynthetic bacteria are present that can use those chemicals as source of energy.