Ictiofauna da Barragem Mesa de Pedra localizada no Município de Valença do Piauí, e os efeitos causados pela introdução da espécie exótica cichla ocellaris

Abstract

The work addresses the danger of the introduction of the exotic species Cichla ocellaris in the stone dam located in the municipality of Valença do Piauí. The insertion of the exotic species can bring several negative environmental impacts, in addition to being a strong predator of smaller native species they act as invaders, then beginning to compete with other species, which could generate a possible environmental problem for the region. Bringing as the problematic of research the Inquiry : What are the modifications and problems that the introduction of the invasive alien species Cichla ocellaris brings to the ichthyofauna of the stone table dam? In order to obtain an answer to this question, it was established as main objective to analyze the ichthyofauna of the stone table dam,and its possible modifications and effects caused by the introduction of the exotic species Cichla ocellaris, by anthropic actions and its possible modifications and effects caused by the introduction of the exotic species Cichla ocellaris, by anthropic actions They were selected by the president of the Mesa de Pedra. Data collection was used using a qualitative methodology, in which the fishermen were selected by the president of the fishermen's association They were selected by the president of the Mesa de Pedra Dam Fishermen's Association. The results generated provided the necessary information to verify the risks that these species bring to other species bring to the other endemic species of the region.