Giant freshwater prawn Macrobrachium rosenbergii is the most cultivated freshwater decapod crustacean globally, distributed throughout the Indo-Pacific region, South and Central America. This prawn has presented a growing world production (234,400 tons in 2018) (FAO, 2020). It represents 45% of the global freshwater prawn production, amounting to US$ 2.01 billion (FAO, 2019), thus being a product of great commercial importance for the productive sector.However, this species has heterogeneous growth, affecting yield and product value.

estatístico R Core Team (2022), para a determinação da relação entre dependência de variáveis. A presente pesquisa demonstra uma maior porcentagem dos entrevistados de mulheres (60,40%), sendo que do público entrevistado 26,11% tinham idade de 20 a 25 anos, do total de entrevistados 97,8% afirmam que consomem carne de frango, os que não se alimentam dessa proteína afirmam que o motivo é pelo fato de acreditar no uso de hormônios na dieta dos frangos ou simplesmente por não apreciarem essa carne, 48,9% consomem a proteína do frango diariamente, peito e coxa são os cortes mais consumidos pela comunidade local apresentado para ambos um percentual de consumo igual a 26,7% dos entrevistados. Pode-se concluir que o município de Salgueiro-PE possui potencialidades para o mercado de carne de frango comercial, uma vez que seu consumo demonstrou ser bastante expressivo.

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The purpose was to analyze the Problem-based learning (PBL) as a methodological alternative for primary school that favor learning about Amazonian ecosystems. This research is descriptive with a qualitative-quantitative approach. The study was carried out with students from the 9th year of primary school. The teaching methodology based on the PBL was applied in two phases: In the first phase, a test of previous conceptions was carried out in order to know the perception of the students on topics related to some units of landscapes of the Amazonian ecosystems. The second phase consisted of the implementation of the learning methodology in the school environment. Four different phases were established in the application: i) selection of topics; ii) problem formulation; iii) problem solving; iv) synthesis and evaluation. The data collection instruments used were: preconceptions test and skills chart. The results showed that after the application of the ABRP methodology, the cognitive recognition of the Amazonian ecosystems can be perceived in the students, reaching additional goals that the PCN establish.