Which of the following is limiting factor for productivity in deep lake ecosystem?

What is the limiting factor in deep lake ecosystem?

In case of a deep lake ecosystem, sunlight is a limiting factor for productivity. Because as the depth of the lake is very high, rate of dispersion of net incoming sunlight over the lake gradually increases with increase in depth. Hence, net sunlight received by primary producers in the ecosystem is very less.

Which nutrient is a major limiting factor in lakes?

Phosphorus is usually considered the “limiting nutrient” in aquatic ecosystems, meaning that the available quantity of this nutrient controls the pace at which algae and aquatic plants are produced. In appropriate quantities, phosphorus can be used by vegetation and soil microbes for normal growth.

What is a limiting factor in ecosystem?

A limiting factor is anything that constrains a population’s size and slows or stops it from growing. … Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor.

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Which of the following is limiting factor for productivity in ecosystem?

In aquatic ecosystems, the limiting factor for productivity is light.

What limits primary production in freshwater lakes?

The correct answer is Phosphorus. Phosphorus is most likely to limit primary production in freshwater lakes. Primary production is the process of conversion of light energy to chemical energy by green plants. For the aquatic ecosystem, usually, phytoplankton does this work.

Why is phosphorus a limiting factor in aquatic ecosystems?

Phosphates are also limiting factors for plant-growth in marine ecosystems, because they are not very water-soluble. … Phosphorus cycles through plants and animals much faster than it does through rocks and sediments. When animals and plants die, phosphates will return to the soils or oceans again during decay.

What is the typical limiting factor in streams lakes and freshwater environments?

In the ocean and other saltwater environments, nitrogen is often the limiting nutrient. In streams, lakes, and freshwater environments, phosphorus is typically the limiting nutrient.

What are 3 limiting factors in an aquatic ecosystem?

Most aquatic organisms do not have to deal with extremes of temperature or moisture. … Instead, their main limiting factors are the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water.

What are the 10 limiting factor?

Limiting factors can also be split into further categories. Physical factors or abiotic factors include temperature, water availability, oxygen, salinity, light, food and nutrients; biological factors or biotic factors, involve interactions between organisms such as predation, competition, parasitism and herbivory.

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Why is water a limiting factor of ecosystem?

When salmon populations are reduced, the whole ecosystem is stressed. Non-living limiting factors are known as abiotic factors, which can include water temperature. When the water temperature gets too high, it limits the survival of some species and changes the water quality.

What is the first limiting factor in an aquatic system?

However, in open oceans nutrients are often in short supply. They are an important limiting factor for productivity in aquatic life zones. Phosphorus is the main limiting nutrient in freshwater life zones, whereas nitrogen is the main limiting nutrient in saltwater life zones.

What is the second trophic level in lake?

The second most important trophic level in a lake is zooplankton. In the aquatic ecosystem, the ecological pyramid starts with the primary producers which are mainly the phytoplankton such as algae, bacteria, etc.

What is the difference between litter and detritus?

Detritus is a biological waste whereas litter is simply a waste produced. detritus is decomposed by the saprotrophs(decomposers) whereas litter is not decomposed. … detritus is non polluting whereas litter is polluting in nature. detritus after decomposition gives inorganic substances while litter doesn’t.