What is a consequence of algal blooms?

A significant consequence of algal blooms is the depletion of oxygen in aquatic environments, alongside the potential release of toxins. When algal blooms occur, they can block sunlight from reaching underwater plants, preventing photosynthesis and reducing oxygen levels in the water as decomposing algae consume available oxygen. This reduction in oxygen can lead to hypoxia, which is detrimental to fish and other aquatic organisms that rely on sufficient oxygen levels to survive.

Furthermore, some types of algae produce harmful toxins, which can have serious impacts on both aquatic life and human health. This combination of hypoxic conditions and the presence of toxins can lead to fish kills, the collapse of aquatic ecosystems, and significant challenges for water quality management. Thus, the effects of algal blooms are profoundly negative, impacting health, biodiversity, and the overall balance of the aquatic environment.