Influência da piscicultura na eutrofização de ambientes continentais

Abstract

The fish production is presented in Brazil expansion due to the availability of large hydro potential, species richness, productive coastal region and diverse microclimates. Fish farming, direct on environmental or in artificial environments, releases waste compounds for food products and non-ingested fish metabolism. These residues intensify the support of nitrogen and phosphorus in the water, making the environment eutrophic. Eutrophication, when pronounced, leads to deterioration of water quality, compromising the stability of the aquatic ecosystem. The objective is to present a literature review on the influence of fish farming on water eutrophication, showing changes in physical and chemical characteristics of water management structures, crops, impacts to fish and legislation and recommendations to a fish farm sustainable.