Avaliação do impacto da implantação do complexo garabi sobre os estoques de peixes migradores no uruguai médio

Abstract

Power generation has a key role in the development of the country, subsidizes the industrial growth and is a contribution to infrastructure. The dams representing 85.9% of energy generated in the country and the demand for electricity should increase in coming years, adding together the number of impoundments in the country. Dams cause numerous impacts of the socio-environmental. This study aims to examine the impacts on fish fauna caused by the implementation of Complex Garabi, a series of hydroelectric dams to be installed in the Middle Uruguay River. Seeks to analyze the impacts on the reproductive success of migratory fish and the maintenance of fish stocks of species spawning river Uruguay. We analyzed several studies in environmental areas as: ichthyology, limnology, ecology, dams ecology, reproduction of migratory fish, impacts of dams on the fish fauna, aquatic habitat fragmentation, environmental fragility analysis in aquatic systems. Were also analyzed studies in the social area: the national energy demand, Brazilian hydroelectric potential, government resolutions, and exploitation of resources, among others. We observed the demand for scientific knowledge, taking the study area as a goal. Filling these gaps is the essence so that we can act forcefully in the management and conservation of migratory fish species in the Uruguay River basin. It is recommended to postpone the installation of Complex Garabi.