What is the primary goal of using an algaecide?

The primary goal of using an algaecide is to eliminate excess algae populations in aquatic environments. Algae can grow rapidly under certain environmental conditions, leading to algal blooms that can disrupt ecosystems, deplete oxygen levels, block sunlight, and produce toxins harmful to fish, wildlife, and people. By applying algaecides, the target is to manage and control these excessive algae levels, restoring balance to aquatic ecosystems and improving water quality.

The other options do not align with the primary objective of algaecides. Encouraging faster algae growth would be counterproductive, as the purpose of using an algaecide is to reduce harmful algae, not promote it. Clearing litter from water bodies is a separate management practice that focuses on debris removal rather than algae control. Supporting the growth of beneficial aquatic plants does not directly relate to the function of algaecides, which specifically target algal overgrowth rather than fostering plant development.