TONS of great fish in those waters! If you''re on the move, you can drag a line behind the boat and catch just about anything, but if you''re lure fishing, expect Barracuda, which make for decent eating, but they''re understandably hard to get off the line. Best way to kill a fish without having to bludgeon it is to get a little spray bottle and fill it with isopropyl alcohol. Spray that into the gills and it kills fish instantly.
Other fish out there are jacks, grouper, parrotfish, tuna, dorado, wahoo, and the list goes on. Best bet is to go to half.com or amazon and get yourself a book on fishing the islands. It''ll give you a rundown on gear (generally need a heavy duty rod if you''re dragging a line and a lighter but solid rod if you''re tossing a line over while at anchor), fish, bait/lures, and most importantly, things like ciguatera, which can be deadly. Ciguatera is a form of human poisoning caused by the consumption of subtropical and tropical marine finfish which have accumulated naturally occurring toxins through their diet. The toxins are known to originate from several dinoflagellate (algae) species that are common to ciguatera endemic regions in the lower latitudes.
I cruised from PR
to Trinidad and fished mainly while at anchor, but caught some fantastic jacks with about 6lb test and canned viennese sausage as bait. no kidding. lol. Got a grouper that way too. Best of luck!