Question

Difference between biota of pelagic and benthic zones of ocean in150 words

Answer 1

Answer:

pelagic zone:

1. it occurs in the upper layers of the sea.
2. more light penetrates.
3. pelagic organisms depend on plants for food. i.e plants are the producers here.
4. less nutrients are available relatively.
5. it has grazing food chain.
6. these zones are warmer.
7. these have good availability of oxygen.
8. the organisms here are mainly plants, herbivores, carnivores.

benthic zone:

1. it occurs in the bottom layers of the sea.
2. less light penetrates.
3. benthos depend on dead organic matter.
4. more nutrients are available relatively.
5. it has detritus food chain.
6. there zones are darker.
7. these have less availability of oxygen.
8. these organisms are mainly scavengers and detritivores.