What physical constraints may limit the use of specific technologies in aquatic environments?

The presence of shallow water and obstacles serves as a significant physical constraint affecting the use of specific technologies in aquatic environments. In shallow waters, traditional equipment and methods used for herbicide application may not function effectively since they often require deeper water to operate safely and efficiently. Additionally, obstacles such as rocks, submerged vegetation, or man-made structures can impede access to treatment areas, making it challenging to apply herbicides uniformly. This limitation necessitates the adaptation of technology to ensure effective application, as well as enhanced safety for personnel operating in those environments.

While other factors, such as fish populations or urban proximity, may impact decisions regarding aquatic herbicide use, they are not primarily physical constraints that limit the technology's functionality in the field.