We evaluated the implementation of a fishing agreement, which was created by negotiation among all users of the resources as a co-management strategy because its definition was a result of meetings between all users of the resources. The fishing agreement was implemented in Unini River, a tributary of the right bank of Negro River. Our approach was based on the perception of the people who live in that area, called ribeirinhos. The management strategy was based on spatial distribution of the different types of fishing. We used two logistic regression models to identify the variables which are important to determine the previous concordance and satisfaction with the agreement. First, we analyzed the initial effort to implement the agreement. The variable that influenced the decision of support for the agreement and satisfaction with the results of agreement in both models was the distance from the interviewee's residence to the sport fishing area. The results showed that the perception of improvement in well-being of the communities and structured social organization are crucial for the success of the co-management strategy.
El objetivo de este trabajo fue determinar la abundancia, riqueza y diversidad de peces asociados a los diferentes tipos de macrófitas acuáticas existentes en lagos de várzea del río Solimões. Los muestreos fueron realizados en dos fases del ciclo hidrológico: inundación y sequía, en bancos de macrófitas compuestos por capim flotante Paspalum repens y en banco mixtos (compuestos por asociaciones de especies vegetales de libre flotación). Fueron colectados 2.051 individuos pertenecientes a 115 especies de peces, en los períodos y tipos de bancos muestreados. Characiformes fue el grupo dominante en ambos períodos y los diferentes tipos de bancos. La riqueza y la diversidad de especies fueron mayores en los bancos compuestos por el capim flotante P. repens que en los bancos mixtos. Los resultados de este estudio sugieren que la diversidad y la abundancia de peces asociados a las macrófitas acuáticas son influenciados por la mayor complejidad estructural del hábitat formado por P. repens.
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