What is compensation depth why is it significant to primary production in the ocean?

What is Picoplankton What is its role in primary productivity?

Picoplankton are really small bacteria that we are unable to see. Their main role in the ocean is to produce oxygen and nitrogen compounds as well as taking up carbon dioxide. … Cyanobacteria is a bacteria that obtain their energy through photosynthesis, and are the only photosynthetic prokaryotes able to produce oxygen.

What factors control the primary productivity in the ocean?

Light. Energy from the sun is essential to the process of photosynthesis, by which most primary production gets done. This has a large effect in the oceans, where, because of the limits of light penetration, it is necessary for most production to take place near the surface.

What is true about compensation depth?

The compensation depth is the depth where photosynthesis exactly equals the consumption by respiration.

How do you calculate primary production?

Primary production is calculated as the sum of the rate of change in oxygen concentration in clear bottles, the net community production, and that in dark bottles, the dark respiration.

What is primary productivity in the ocean?

Primary productivity is the rate at which atmospheric or aqueous carbon dioxide is converted by autotrophs (primary producers) to organic material. Primary production via photosynthesis is a key process within the ecosystem, as the producers form the base of the entire food web, both on land and in the oceans.

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How important is primary productivity in aquatic systems?

In aquatic ecosystems, primary productivity is driven by the availability of nutrients and light and, to a lesser extent, by temperature and other factors. Primary productivity is important because it is the process that forms the foundation of food webs in most ecosystems.

What happens at the compensation point?

The Compensation Point is the point at which Photosynthesis and Respiration are in balance, so (in a perfect world) the amount of oxygen being produced by photosynthesis will just balance the amount being used by respiration. At this point there will be NO oxygen bubbles being produced in the leaf discs.

What can change the compensation depth?

Once sunlight penetrates the water, the compensation depth varies with ocean conditions. For example, with an increase in production there is an increase in phytoplankton populations, as well as the numbers of zooplankton that eat the phytoplankton.