They can be capable of a fermenting metabolism, or a respiratory metabolism. They can however only use oxygen as the final electron acceptor. Vibrios are related to the enteric bacteria, and on to a lesser extent, the pseudomonads. They are also oxidase positive, witch is a distinguishing characteristic that enterics don't have. Vibrio Cholera was meant to dwell in a watery environment.
Cholera possess a single polar flagella, and are therefore motile.
Within the boundary of the V. Cholera, there are over one hundred strains. Most are fairly non-virulent, but there are some with antigens that can causes a more virulent strand. Clearly this disease is one to be dealt with carefully.