Wow, that's quite an opportunity! I am relieved to read that your purpose was for furthering the study of sharks. At first glance I thought this was just a write-up from the point of view of sports fisherman. I was trying to think of a tactful way of saying I didn't approve of killing sharks for sport, etc. etc. I also hadn't realized Princeton had a lab that studied sharks. It sounds like a wonderful career. I hope you get to have more of these spontaneous marine opportunities and will share them with us.