What is the average precipitation of the benthic zone?

1. What is the average temperature of the benthic zone?
2. What is the water pressure in the benthic zone?
3. What is the composition of benthic zone?
4. What is the characteristic of benthic zone?
5. How much dissolved oxygen is in the benthic zone?
6. How is life in the benthic zone organized?
7. What are the zones under benthic zone?
8. What is the predominant activity in the benthic zone in lake ecosystem?
9. What are the pelagic and benthic zones?
10. What is the benthic division?
11. Are there photosynthetic organisms in the benthic zone?
12. What is the dominant role of the benthic zone?
13. Why is the benthic zone important?
14. Are mussels benthic?
15. Why do you think there are more nutrients in the benthic zone of the ocean than the photic?

What is the average temperature of the benthic zone?

Temperature. For benthic zones located close to the shore or with notably shallow depth, the temperature is warmer, but for those located hundreds of meters deep, temperatures can fall to 2°C to 3°C (near the abyssal zone).

What is the water pressure in the benthic zone?

The pressure in the benthic region varies from low to high depending upon the depth of the zone. The pressure is lower at shallow depths as compared to hundreds of metres of depth. An example of a very high pressure benthic zone is the Mariana Trench which has a pressure 1000 times more than the normal pressure.

What is the composition of benthic zone?

The benthic zone is one of the ecological regions of a body of water. It comprises the bottom—such as the ocean floor or the bottom of a lake—the sediment surface, and some sub-surface layers. Organisms living in this zone—that is, on or in the bottom of the body of water—are called benthos.

What is the characteristic of benthic zone?

This zone is characterized by low temperature and high pressure. Such conditions are not optimum for sustaining vast flora and fauna found in this zone. The sediment layers of the benthic zone help in recycling the nutrients that helps in the survival of the aquatic life in the upper column.

How much dissolved oxygen is in the benthic zone?

The benthic layer showed large variations in dissolved oxygen conditions with ranges between the ditches from 0 to 91% of the time anoxic, 4 to 22% of the time hypoxic, and 4 to 95% of the time oxic.

How is life in the benthic zone organized?

Life in the benthos region is organized by size. Macrobenthos are organisms that are larger than one millimeter like oysters, starfish, lobsters, sea urchins, shrimp, crabs and coral. ... Organisms in this group include diatoms and sea worms. Microbenthos are very tiny organisms like diatoms, ciliates and bacteria.

What are the zones under benthic zone?

The benthic environment is divided into a number of distinctive ecological zones based on depth, seafloor topography, and vertical gradients of physical parameters. These are the supralittoral, littoral, sublittoral, bathyal, abyssal, and hadal zones.

What is the predominant activity in the benthic zone in lake ecosystem?

INTRODUCTION. Benthic environments in streams comprise zones of high biological activity in which processes such as primary production, consumption, nutrient cycling, and decomposition predominantly occur. Primary producers and their consumers interact in this zone as they do in all ecosystems.

What are the pelagic and benthic zones?

The pelagic zone refers to the water column, where swimming and floating organisms live. The benthic zone refers to the bottom, and organisms living on and in the bottom are known as the benthos .

What is the benthic division?

A primary division of the sea that includes all of the ocean floor.

Are there photosynthetic organisms in the benthic zone?

On many sediments in the photic zone, however, the only photosynthetic organisms are microscopic benthic diatoms. ... The microbenthos are those organisms smaller than 1 millimetre; they include diatoms, bacteria, and ciliates.

What is the dominant role of the benthic zone?

Benthic habitats play a critical role in the breakdown of organic matter, through the actions of scavengers, deposit-feeders, and bacteria. Most of the benthic habitats are in deep, pressured areas of the ocean.

Why is the benthic zone important?

Without these species, aquatic ecosystems would collapse. Despite being out of sight, the benthic zone is a highly important contributor to lake ecosystems. ... The benthos living in this zone act as a food source for other aquatic species, as well as humans. Benthos are also critical for the breakdown of organic matter.

Are mussels benthic?

Mussel biodeposits are a nutrient rich and easily assimilated food source and therefore may have significant relevance to benthic community structure. ... Mean fine benthic matter (organic and inorganic) collected from the bucket isolation experiment for the mussel (a), sediment (b) and control (c) treatments.

Why do you think there are more nutrients in the benthic zone of the ocean than the photic?

Beneath the water is the benthic zone (Figure 1), which is comprised of sand, silt, and dead organisms. This is a nutrient-rich portion of the ocean because of the dead organisms that fall from the upper layers of the ocean.