What temperature is needed for hot water decontamination to effectively kill adult invasive species?

The correct answer, which is 140°F, is significant because this temperature has been established as effective in killing adult invasive species during hot water decontamination processes. Maintaining water at this temperature for a proper duration ensures that invasive organisms cannot survive.

Hot water decontamination is a critical practice in managing and controlling the spread of invasive species in aquatic environments. Various studies have shown that lower temperatures, while they may be somewhat effective, do not reach the necessary lethality required to eliminate adult invasive species completely. Conversely, higher temperatures beyond 140°F can lead to potential equipment damage or risk safety issues for personnel performing the decontamination, which makes 140°F the ideal balance for efficacy and safety in treating equipment and watercraft.