Implement a system that gives a crew a stacking buff for the next item (or N-number-of items turned in) for each ship they sink or potentially player they kill. It would work something like this. Each time you sink a ship, your crew gets a 50% bonus on their next treasure turn in. Each time somebody on the crew kills another player, they add another 5% bonus to the stack. The crews current bounty bonus should be displayed above their ship. If somebody manages to sink that ship, they inherit that bonus. Once an item is turned in, the bonus is applied to gold and rep gains and the stack goes to zero.
So, for example, some crew goes out and sinks a couple other ships and gets up to a 230% turn in bonus for their next item, but another ship sees that nice juicy bonus and comes for them. They sink that ship and take the bonus over for themselves. They rush to turn in a captains chest they had on board and that bonus gets applied giving them 3000+ gold and rep.
