How do chemical treatments affect non-target species in aquatic pest management?

Chemical treatments in aquatic pest management can significantly impact non-target species by causing toxicity and disrupting the food chain. When chemical pesticides are applied to control aquatic pests, they do not solely affect the target species. Many chemicals can have harmful effects on a variety of organisms that share the same environment, including beneficial species such as fish, amphibians, and invertebrates.

The presence of these chemicals can lead to sub-lethal effects, reproductive issues, or even death among non-target organisms. As these species play critical roles in their ecosystems—such as serving as prey for larger animals or contributing to nutrient cycling—their decline or demise can have cascading effects throughout the food web. Thus, the use of chemical treatments needs careful consideration and management to mitigate risks to non-target species and maintain ecological balance.