The aim of the present study was to evaluate the socioeconomic profile of agroextractivists who practice associations in the archipelago of Marajó, state of Pará, Brazil. The study was carried out in the municipality of Breves, at the Ilha Pracaxi Settlement Residents Association (AMIP), with seven producers, in June 2019. Quanti-qualitative research was used, through the application of forms, with open and closed questions. Statistical analyzes were performed using the SPSS for Windows program, version 11.5. It was observed that there is a predominance of females in the total of associates. This population has an age range between 31 to 40 years, where 71.43% have some type of marital bond. Most (57.14%) have incomplete primary education. It was detected that 85.71% have housing with wooden structure. We emphasize that the main source of income comes from family farming. In addition to agricultural practice, respondents develop fishing and extractivism in the forest (57.14%). It is also worth mentioning that a part of the producers is granted social benefits, reaching an income of up to 2 minimum wages (42.86%). Due to the scarcity of data in the literature, this study carried out a cross-sectional analysis regarding the reality of associations in the Marajó archipelago. Thus, the provision of these data can assist in directing public policies that favor sustainable development in the region.

O objetivo deste estudo foi desenvolver tecnologias sociais para piscicultura familiar, que cultivam tambaqui (Colossoma macropomum). As tecnologias foram construídas durante o curso de Boas Práticas de Manejo no município de Curralinho, arquipélago do Marajó (Pará - Brasil), em março de 2020. Ao final do curso, foi conduzida uma oficina para produção dos equipamentos de manejo, entre estudantes, professores e aquicultores locais. O projeto capacitou homens e mulheres de diversas comunidades rurais. O disco de Secchi, ictiometro, puçá e tanque-rede, foram as tecnologias construídas e testadas nas pisciculturas locais. Em conclusão, as atividades de extensão e a construção de equipamentos de baixo custo para piscicultura familiar, foram bem sucedidas. As tecnologias sociais construídas, se mostraram tecnicamente viável, sendo uma alternativa sustentável para produção e manejo de tambaqui local.

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The objective of this study was to analyse the profile of teachers and the aspects of the environmental education in rural schools in the municipality of São Caetano de Odivelas, state of Pará, Brazil. To achieve this objective, an online questionnaire was digitized and made available to teachers who work in schools in the countryside of the municipality. The research was qualitative-quantitative, it took place between the years 2020 to 2021, carried out with 20 teachers from 10 schools in the field. The collected data were analyzed by descriptive statistics. We identified that the majority (60%) of teachers are women with age between 21 and 30 years (65%). We noticed that they have Degree in Portuguese language and Geography (50%), with Lato Sensu Post-graduation (75%). We observed that they have on average of 4 years of experience in rural education and teach more than one curricular component, in up to two schools (50%). We detected that the main pedagogical material used for teaching environmental education is the textbook (60%). We emphasize to they work the environmental education in a minimal and isolated way to diversify classes. They also confirm that the methodology used with the students is the bibliographic research. In conclusion, there is a deficit of dissemination of environmental education by teachers in rural schools of state of Pará, Brazil.

The objective of the study was to evaluate good management practices through a Checklist for aquaculture enterprises in the Marajó archipelago (Pará, Brazil). The research was carried out in the municipality of Curralinho, as part of the actions of the project “Transfer of technology through training and technical assistance for creators of tambaqui, Colossoma macropomum, in the archipelago of Marajó/PA” of the Federal Institute of the Pará (IFPA), Campus Breves, between September 2019 and January 2020. A total of 13 fish farms participated in the survey. The instrument for data collection was a checklist, which includes items related to the management of fish farming. After applying the checklist, it was possible to identify that the implementation of fish farming, identification of infrastructure, soil management and application of limestone, occurrence of diseases and storage of fry, presented levels of non-conformities between 75% to 79%. The items filters and anti-leak prevention, handling during the process of draining the tanks, stocking density and handling of fishing, presented levels of non-conformities between 80 - 89%. For the item soil disinfection the level of non-conformities was 94% and for the items: fertilization, protection of tanks with anti-bird nets, water quality, biometrics management, transfer management, cleaning procedures and equipment asepsis and the condition and safety of fish farming workers, presented levels of non-conformities varying between 95 - 100%. It was concluded that all sites are not suitable for good practices and therefore put the species' fish farming in the region at risk.

The objective of this work was to evaluate the potential of Urochloa brizantha cv. Marandu and Panicum maximum cv. Mombasa in phytoremediation of soil treated with 2,4-D + picloram herbicide, using Raphanus sativus Crimson Gigante as a bioindicator plant. The experiment was carried out in a greenhouse, in a completely randomized design in two stages. In the first stage the treatments were: cultivation of U. brizantha and P. maximum treated with and without the herbicide dose, with five replications. In the second stage, the treatments consisted of cultivating R. sativus in soil: free of herbicide residue; and soil contaminated with cultivation: prior to U. brizantha; P. maximum; and without previous cultivation of grass, with five replications. The units were treated with the herbicide, individually in pre-emergence, after 15 days the grasses were sown. After 50 days, forages were harvested and segregated in aerial and root parts, analyzing fresh and dry biomass (g) and height (cm). After removing phytoremediation plants, R. sativus was transplanted, evaluating visual phytotoxicity at 5, 10, 15 and 20 days after emergence (DAE) and at 20 DAE, the accumulation of green and dry matter (g), height (cm). The evaluated grasses have phytoremediation characteristics for auxinic herbicides; R. sativus can be used as a bioindicator of the herbicide 2,4-D + picloram; the evaluated period was not enough to fully remove the effects of the herbicide.

O objetivo deste estudo foi compreender o processo de criação da associação, bem como o grau de satisfação e a dinâmica de participação dos associados no Assentamento Ilha Pracaxi, município de Breves, Pará, Brasil. Foram entrevistados associados atuantes da organização social. A pesquisa revelou que os entrevistados estão associados a mais de cinco anos. Iniciou com 190 sócios e atualmente possui 150, que tinham por objetivo a concessão do título de terra. Conclui-se que existe a necessidade de implementação de estratégias de gerência, que alterem os processos que a envolvem e busca intermitente de aprimoração das competências administrativas dos dirigentes e das práticas à campo dos associados, reforçando a operabilidade da produção e gestão de conhecimento, fortalecendo o desenvolvimento dos associados.

The adoption of innovative pedagogical practices is a trend that has generated new educational products, even in a pandemic context. Alternative teaching methodologies have provided students with new ways of learning during face-to-face, hybrid or remote teaching. The objective of this study was to produce didactic tools in aquaculture as a proposal for the Rural Education (CE) curriculum. Six aquaculture products were built, in the form of miniatures, with a view to using the curricular components of biology, physics, chemistry and mathematics in practical classes: i) aquaponics; ii) Secchi disk; iii) ichthyometer; iv) net; v) net tank and; vi) fishing net. The recommendation was to use them in an integrated, transversal, interdisciplinary and multidisciplinary way in elementary school (final years). Such tools were of fundamental importance to integrate knowledge from local knowledge, where aquaculture is present in curricular components. These can be worked in an integrated way to Environmental Education (EA). Therefore, encouraging aquaculture in a playful way in rural schools means valuing the student as a subject in the process of building knowledge. In conclusion, the built tools showed positive results, presenting themselves as alternatives in the teaching-learning process.