Which of the following is most likely to limit primary production in f

1.	Which of the following is most likely to limit primary production in fresh water lakes ?1. Oxygen2. Calcium3. Phosphorus4. Carbon
Answer» Correct Answer - Option 3 : Phosphorus 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. In an ecosystem, the primary production sets the balance of the energy budget. The amount of light and nutrients limits primary production. A limiting nutrient is an element that must be added for production to increase in a particular area. In this case, two important nutrients are Nitrogen and Phosphorus that limit primary production. Nitrogen act as an agent for algae blooms in the sea/ocean water. In the case of freshwater, the major source of pollutants is derived through domestic sewage and agricultural fields. Phosphate content present in soap, phosphate fertilizers, concentrated animal feeding operations, etc causes extra addition of phosphorus in the freshwater. It predominantly causes Eutrophication. Eutrophication means is characterized by dense algal and plant growth in the water that causes threats to the survival of aquatic life Phosphorus is the nutrient that limited cyanobacteria growth.

Which of the following is most likely to limit primary production in fresh water lakes ?1. Oxygen2. Calcium3. Phosphorus4. Carbon

Answer» Correct Answer - Option 3 : Phosphorus

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.
In an ecosystem, the primary production sets the balance of the energy budget.
The amount of light and nutrients limits primary production.
A limiting nutrient is an element that must be added for production to increase in a particular area.
In this case, two important nutrients are Nitrogen and Phosphorus that limit primary production.
Nitrogen act as an agent for algae blooms in the sea/ocean water.
In the case of freshwater, the major source of pollutants is derived through domestic sewage and agricultural fields.
Phosphate content present in soap, phosphate fertilizers, concentrated animal feeding operations, etc causes extra addition of phosphorus in the freshwater.
It predominantly causes Eutrophication.
Eutrophication means is characterized by dense algal and plant growth in the water that causes threats to the survival of aquatic life
Phosphorus is the nutrient that limited cyanobacteria growth.