Supplies
For trading and your crew, you will need supplies such as Food! Unlike in Uncharted Waters II, there is not a WATER option, so I presume that is in the FOOD genre. Anyway, here are what you will plunder from enemies and buy from the shop in towns!
Sugar-
I have no idea what Sugar is for, but I bring it around in my voyages, it's
mainly for trading I think.
Food-
FOOD!! YUMMY! Your crew and you need this for your voyages to EAT!
Goods- Used for trading!
Gold-
Gold is a huge thing in Pirates! Gold, in fact other than food, one of the
biggest things. Gold measures your crew's happiness value also!