The conventional approach to fishery management is based exclusively on scientific methods and information, ignoring the knowledge and management systems informally adopted by fishing communities. The implementation of traditional top-down management systems is usually complicated, inoperative, and expensive because fishermen (and other stakeholders) do not take part in the decision making process, and, consequently, do not comply with the imposed rules. Traditional (and local) knowledge becomes important in resource management, making that the tradition value counterbalances external influences, having as consequence a strong social identity [6].