Tecnologias ambientais e o desenvolvimento da atividade piscícola no município de Abaetetuba: o uso de viveiros escavados

Abstract

The pollution of water resources is one of the greatest challenges to sustainability, especially a problem for the riverside communities in the Amazon, who feel on a day to day basis the impacts of pollution of rivers once the availability of fish is becoming scarce. To deal with this reality many communities develop aquaculture, fish breeding in captivity, as an alternative to family nutrition and income generation. However, the fishing activity by means of the accumulation of rest of ration not consumed and droppings of the fish ends up generating an effluent with a high concentration of nutrients such as nitrogen and fosforo unleashing a process called eutrophication, which changes the quality of the water. This condition induces the multiplication of micro-organism that will release toxic substances, to prevent the penetration of light and decrease the amount of oxygen available for fish in the water. If the effluent is disposed of without treatment it is possible that pollute natural water courses of greater extension. If the effluent is disposed of without treatment it is possible that pollute natural water courses of greater extension. The objective of this study was to analyze the fish in tanks excavated at the headquarters of the municipality of Coldwater and check if it has been performed in accordance with the environmental legislation in force and which type can generate impacts on the natural environment. From the case study of farming in the Community Genipauba the specific objective was to offer propositions that may contribute to decision-making processes of local public managers to contribute to the development of local farming, so that the management are integrated environmental technologies.