Quick Answer: Are coral reefs least productive ecosystem?

Open oceans. D. Coral reefs. … -Oceans contain lots of nutrients but they have no sufficient sunlight reaching in the deep areas, therefore, oceans have the least productivity among all ecosystems.

What are the least productive ecosystems?

Deserts, tundra, and the deep ocean are the least productive ecosystems, typically having an energy fixation of less than 0.5 × 103 kilocalories per square meter per year (thousands of kcal/m2/yr; it takes one calorie to raise the temperature of one gram of water by 34°F [1°C] under standard conditions, and there are …

Do coral reefs have high or low productivity?

Coral reefs are among the most productive ecosystems on the planet, with the primary producers at the base of the food chain (including corals) supporting their complex food webs. … Although light provides the energy that fuels reef productivity, key nutrients such as nitrogen and phosphorus are also required.

Do coral reefs have low primary productivity?

Coral reefs are “low input ecosystems” concerning flow of matter (D’Elia and Wiebe, 1990). High productivity of coral reefs is based on a high turnover rate of nutrients within the system, they are therefore not adapted to a high loss of matter.

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What are the 3 most productive and 3 least productive ecosystems?

The two most productive are estuaries, swamps and marshes, and tropical rain forests. The two least productive are open ocean, tundra, and desert.

Which of the following is least productive ecosystem desert coral reefs tropical rain forest sugarcane field?

The least productive ecosystem are deserts and deep lakes. The most productive ecosystem are coral reef ecosystem due to structural complexity. It is also called as tropical rain forests.

Which of the following is least productive ecosystem desert?

Very low productivity is present in deserts and arctic regions. In oceans and other aquatic ecosystems, productivity is limited by light as it decreases with depth. But on a global basis, aquatic ecosystems occupy more space on earth than any other biome and have good productivity in surface layers, which are euphotic.

Why coral reefs are productive?

Coral reefs’ high productivity has been attributed mainly to photosymbioses between the coral animal and algae of the family Symbiodiniaceae, with recognition that the host can increase algal photosynthesis by concentrating nutrients and enhancing the efficiency of light absorption.

Why are coral reefs productive ecosystems?

The coral reefs are known to possess the most productive ecosystem on the earth. They are found in the oceans and seas at a depth of water. The animals living under the coral reefs swiftly filter the water and allow planktonic organisms to grow, and these plankton get enough sunlight to grow.

What marine ecosystem has lowest productivity?

Main points

  • Marine ecosystems generally have low productivity. …
  • Coral reefs occur in warm, shallow ocean in areas of constant current. …
  • Productivity in continental shelf areas is higher than that in deep oceans.
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Are ecosystems least productive?

Least productive ecosystem is desert and deep lake.

What is the most productive wetland?

In general, swamps and marshes have the highest primary production of all the world’s ecosystems. Primary production of all wetland types varies from 600-2000 gC/m2/y.

Is coral a reef?

Coral reef diversity

Because of the diversity of life found in the habitats created by corals, reefs are often called the “rainforests of the sea.” About 25% of the ocean’s fish depend on healthy coral reefs.