Over the years there have been less and less roaming the oceans, partly because of the over-blown fighting amongst themselves. Some of the more civilized ones became true scourges of the sea, pillaging and raiding cities and islands.
Pirate Blast (doesn't account to specifically for this race, but is easier to use)
Captain's Overload (again isn't specific to the race)
Faster speed in water (but slower on land)
Using swords and guns are much easier with their high dexterity bonus