Which method can be used to manage invasive aquatic species?

Mechanical removal is an effective method for managing invasive aquatic species. This approach involves physically removing the invasive organisms from their environment, which can help to reduce their population and mitigate their impact on native ecosystems. For instance, in situations where invasive plants or fish are present, techniques such as netting, dredging, or hand-pulling can be employed to physically extract these species and thereby restore balance to the ecosystem.

In contrast, while natural selection intervention might suggest a more biological approach, it is not a targeted method of managing invasives. It relies on ecological processes that occur over long periods and is often unpredictable. Bioremediation focuses more on using biological agents to remove or neutralize contaminants rather than specifically targeting invasive species, which makes it less applicable in this context. Relying solely on regulatory policies might help prevent the introduction or spread of invasive species but does not actively manage or control established populations. Thus, mechanical removal stands out as a direct and immediate approach for the control of invasive species.