The fishermen are the absolute majority in Harbat. Since they are on an island, there isn't that much else about they can trade. Evidently their Guild is a powerfull society, located at the harbour. The fishermen are organised in a sort of union they call the "Fiscian". Their main reason for existence is to protect themselves from the likes of Bill the Butcher, or any other trader from the market that doesn't mind to extort a lone fisherman. They have found some way of living together, not taking into account the occasional tavern brawl.