Is James the captain of the peach and why?

I think tht James falls into this role because of his leadership capabilities. By chapter 21, we can see that James has taken charge.  James comforts Earthworm and assures him that he will not be pecked to death - James will be watching him the entire time. Time is of the essence, as the passengers observe 90 to 100 sharks attacking the peach from all sides. James orders everyone to their stations, and it is clear that he is the captain now. Everyone is ready to listen to whatever he tells them.