What happens during an algal bloom?

What happens during an algal bloom?

• A. Slow and steady growth of plants
• B. Sharp decline in aquatic life
• C. Rapid increase of microscopic and macroscopic plants
• D. Stabilization of water temperature

Answer: (C)

During an algal bloom, there is a rapid increase in the population of algae, which can include both microscopic and macroscopic forms of these organisms. This sudden spike is often fueled by factors such as nutrient pollution, particularly from nitrogen and phosphorus entering the water body from sources like agricultural runoff, wastewater discharge, or stormwater. The excessive nutrients promote robust growth, leading to blooms that can cover large areas of the water surface. While these blooms can sometimes serve as a food source for certain aquatic organisms, they can also deplete oxygen levels in the water as the algae die and decompose. Consequently, this process can lead to negative ecological impacts, including poor water quality and harm to fish and other aquatic life. Understanding algal blooms is crucial for water quality management and preventing the associated problems they bring.

During an algal bloom, there is a rapid increase in the population of algae, which can include both microscopic and macroscopic forms of these organisms. This sudden spike is often fueled by factors such as nutrient pollution, particularly from nitrogen and phosphorus entering the water body from sources like agricultural runoff, wastewater discharge, or stormwater.

The excessive nutrients promote robust growth, leading to blooms that can cover large areas of the water surface. While these blooms can sometimes serve as a food source for certain aquatic organisms, they can also deplete oxygen levels in the water as the algae die and decompose. Consequently, this process can lead to negative ecological impacts, including poor water quality and harm to fish and other aquatic life. Understanding algal blooms is crucial for water quality management and preventing the associated problems they bring.