List two of the most productive and two least productive aquatic life ecosystems or zones. The two most productive are estuaries, swamps and marshes, and tropical rainforests. The two least productive are open ocean, tundra and desert.

How does productivity increase in aquatic ecosystems?

How does productivity increase in aquatic ecosystems?

On land, it is driven by temperature and availability of water and nutrients modified by land use. Read also : Explain how productivity relates to market growth. In aquatic ecosystems, primary productivity is driven by the availability of nutrients and light and, to a lesser extent, by temperature and other factors.

Which aquatic ecosystem is most productive? The most productive aquatic ecosystem is the benthic area of ​​a body of water. The benthic area is the lowest ecological level of a body of water. The productive parts of these regions are coral reefs.

What is the productivity of aquatic ecosystems? The productivity of aquatic systems has had two meanings in the literature: either the transfer of matter or energy through the food web, or the amount of fish that can be caught sustainably per unit of time.

Where are the highest productivity rates in aquatic ecosystems? aquatic ecosystems Most primary production is made by perennial phytoplankton, not benthic plants.

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Which characteristics make estuaries productive ecosystems?

Which characteristics make estuaries productive ecosystems?

Estuaries are biologically very productive. Read also : Productivity how to improve. The salinity gradient and the associated tidal, freshwater and nutrient flow changes within estuaries create a variety of habitats that support a diverse food web.

What factors are most critical in affecting the net primary productivity of a terrestrial ecosystem?

What factors are most critical in affecting the net primary productivity of a terrestrial ecosystem?

Net primary productivity varies between ecosystems and depends on many factors. These include solar energy input, temperature and humidity levels, carbon dioxide levels, nutrient availability, and community interactions (e. Read also : How is productivity of an ecosystem measured.g., herbivore grazing) 2.

Why is the productivity of ocean water greater in higher latitudes?

Why is the productivity of ocean water greater in higher latitudes?

In the high latitude ocean, surface water is cold and so the vertical density gradient is weak, which allows for vertical mixing of water to depths much greater than the “euphotic zone” under sunlight & quot; as a result, the nutrient supply is greater than the phytoplankton can consume, given the light available (and iron, see … Read also : How to calculate productivity percentage.

What estuaries are very productive ecosystems?

Estuarine intertidal areas, including tidal mudflats, tidal marshes, and mangroves, are highly nutrient rich and productive ecosystems. Read also : How to increase productivity economics. They provide spawning and feeding grounds for a number of species, including crustaceans, forage fish, and their predators.

Why are estuaries very productive ecosystems? Estuaries are one of the most productive ecosystems on earth. They maintain water quality through natural filtration as microbes decompose organic matter and sediments bind to pollutants. Wetlands bordering many estuaries also have other valuable functions.

What are the 4 types of estuary? The four main types of estuaries classified by their geology are a submerged river valley, built by bar, tectonic, and fjords. In geological time, often measured at scales of hundreds of thousands to millions of years, estuaries are often landscape features.

Which is the most productive ecosystem? Thus, tropical rainforests are the most productive ecosystem.

Why do terrestrial ecosystems have less than 5 trophic levels?

The different feeding sites in a food chain or food web are called trophic levels. On the same subject : How does productivity increase in terrestrial ecosystems. Generally, there are no more than four trophic levels because energy and biomass decrease from lower to higher levels.

Why are there only 4 or 5 trophic levels in each food chain? There is only 10% energy flow from one trophic level to the next higher level. The loss of energy at each stage is so great that there are very few usable residues after four or five trophic levels. Thus only 4 to 5 trophic levels are present in each food chain.

Why are there only 5 trophic levels? Why are Trophic Levels Limited 4 or 5? Any food chain has only 4 or 5 trophic levels. This is because by the 10% energy transfer law, only 10% of the energy of any organism at the perticular trophic level is available to another organism at the higher trophic level.

What are the five groups of organisms found in an aquatic ecosystem?

Aquatic Organisms: Microorganisms Read also : Productivity meaning.

  • Bacteria. Some of the smallest and most ancient organisms on earth, bacteria are present in almost all environments and abundant in all aquatic systems. …
  • Fungi. Fungi occur as single cells, and in filaments known as hyphae. …
  • protozoa. …
  • Algae and Phytoplankton. …
  • Periphyton and Biofilm.

What are the three groups of aquatic organisms? Three groups of aquatic organisms include plankton, nectone, and benthos.

How are the organisms distributed in an aquatic ecosystem? Aquatic organisms generally fall into three broad groups: plankton, nectone, and benthos. They vary in how they move and where they live. … Nekton are aquatic animals that can move on their own by “swimming” through the water.

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