tributing to over 47% of total aquatic food production, representing about 80 million tons, with 21.41% fish, 9.82% mollusks and 1.19% crustaceans and other aquatic animals (FAO, 2018). Among mollusks, oysters account for 28% of production, and the main cultivated oyster species is Crassostrea gigas (Amaro et al., 2019;FAO, 2018).

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The project "Technology transfer through training and technical assistance for tambaqui breeders (Colossoma macropomum) in the Marajó/PA archipelago is characterized by the opportunity for training, dissemination of technologies, quality academic professional training to students and others involved. For this, the municipality of Curralinho was the stage of extensionist actions realized by Instituto Federal de Educação, Ciência e Tecnologia do Pará (IFPA), Campus Breves. Active methodologies were used through the participation of teachers, fish farmers and students in the construction of pedagogical models. Thus, the objective of this work was to evaluate the use of different models for tambaqui creation. Three models were produced with perspective of implantation in different environments for the region of Marajó: floodplain area, dry land area and field area. A total of 13 fish farmers participated in this action, with whom the power of fixation attention, the understanding, the reflection and the sufficiency of time for each type of model built was evaluated. The Likert scale was used to analyze the data. The results showed that fish farming in floodplain areas presented the highest rates in the parameters studied, while the dry land area and field area models were less interesting in the opinions of the participants. In conclusion, the use of active methodologies through models improved the learning process of the fish farmers during the educational actions of the extension project in aquaculture.

The objective of this study was capacitate aquaculture farmers and develop social technologies for the culture of tambaqui (Colossoma macropomum) in the archipelago of Marajó (Pará - Brazil). The study was carried out in the municipality of Curralinho by the Federal Institute of Education, Science and Technology of Pará (IFPA) Campus Breves, in March 2020. Two structured questionnaires were applied to 13 course participants who participated in the training. The first was before the course, about fish farming and the adoption of Good Management Practices (BPM) adopted by aquaculture farmers in the Marajó region. The second, composed of closed questions to evaluate the training course, whose themes were: 1) water quality, 2) indicated species, 3) fish transport management, 4) fish quarantine and stock, 5) fish biometrics, 6) liming and fertilizing ponds, 7) management of fish nutrition and health, and 8) fish harvesting and slaughter, were approached in the course. At the end of the lectures / training, a workshop for the production of social technologies was conducted, among students, teachers and aquaculture farmers. Previous knowledge about fish farming and the adoption of BPM were essential for the effectuation of the course. Issues about water quality, biometrics and fish nutrition and health were the ones that called the most attention from aquaculture farmers. Secchi's disk, ichthyometer, hand net and net-tank were the social technologies built. Post-course evaluation was essential to understand the impact of the socialization of knowledge provided to the community. In conclusion, the project reinforced teaching, research and extension actions, involving the community in favor of strengthening aquaculture in the Marajó island, Pará, Brazil.