Based on a field study of the Association of Mariculturists and Professional Fishermen from the South of the Island (AMPROSUL), composed of small-scaleoyster and mussel producers, this thesis analyzes the space of interlocution between technical-scientific discourses (government, researchers, etc.) and mariculturists. Government institutions and their partners linked to mariculture, whose stated objective is to reconcile economic development and the social and economic inclusion of the producers, affirms their aim is to transform the family and cottage nature of the process and organize the producers into associations and cooperatives, professionalizing them and standardizing production so that they can participate in the local production arrangement. Public policies aimed at mariculture focus on the organization of the producers in associations and cooperatives and the structuring of the production chain and the local production arrangement. The mariculturists have seen better days. They want to be included in the marketand production arrangement, and complain about what they consider demanding and excessive norms, poor use of resources allocated to mariculture and privileges for the "large" producers. They understand that they need to organize to have their demands met. They commonly turn to families and friends to resolve work related problems such as the lack of labor. The statements of the mariculturists indicate the existence of conflicts and tensions in this process of transformation in the sector. At the same time, technicalscientific discourses seek to explain the difficulties of these producers and meet their demands in relation to organization around the associations and cooperatives. "Negative" diagnoses suggest that these difficulties are associated to the fact that they lack organization, cooperation and solidarity. The parameter for comparison, in this case, is the construction of ties of cooperation as a competitive strategy. According to the statements of the mariculturists, there is a growing process of "mercantilization" of mariculture, supported by the development model adopted by the government. This thesis proposes two approaches. 1) The first is to analyze the technical-scientific discourses and their economist bias, supported by critical discussions in the human sciences about the implications of a utilitarian logic sustained by certain theories and to open space to treating problems related to the social, economic and symbolic exclusion of small producers and reflect on the existence of asymmetric power relations. 2) The second is to create a different narrative about the producers that does not emphasize what is "lacking," marking the importance of their ties of friendship and kinship in the exercise of their activity. In this context, work, family and friendship combine, allowing these people to confront the difficulties that they face. This attitude is supported by critical discussions that analyze the utilitarian logic and explore the existence of another modality of action marked by a non-utilitarian logic.