What can happen if poorly timed chemical treatments are applied during algae blooms?

Applying chemical treatments during algae blooms can lead to a sudden die-off of plants due to the way these treatments interact with the existing ecosystem. Algae blooms can deplete oxygen levels in the water, and when chemicals are introduced during this sensitive period, the stress can be too much for aquatic plants to handle. This rapid application of herbicides or algaecides often results in a significant reduction of plant biomass, leading to a rapid decline in plant populations as they are unable to cope with the combined environmental stressors.

The other outcomes suggested—such as enhancing oxygen levels, reducing fish populations, or improving water clarity—are less likely as immediate effects of poorly timed treatments. In fact, the sudden die-off of plants can further contribute to declines in oxygen levels and negatively impact fish populations, highlighting the interconnected nature of these aquatic systems.