Answer:
The most devastating consequence if Salvatore gets rid of a fish and tank’s content in a freshwater canal is: “He may be introducing an invasive species that will damage the ecosystem.”
Step-by-step explanation:
An invasive species can be defined as an introduced species that can spread and negatively affects the ecosystem or cause problems to humans. The factors that contribute to the introduction of invasive species include, but not restricted to, are land-use change, trading, biological control, and tourism, between others. Invasive species have traits that help them to outcompete native species. Some example of interspecific traits compared to native species are higher growth and reproduction rates, better competitors, or larger size. Another factor that permits a species to become invasive is the absence of native predators.