CHARACTERIZATION AND TREATMENT FOR FISH STATION EFFLUENT

  • Evoy Zaniboni Filho UFSC
  • Norma Dulce Campos Barbosa CEMIG
  • Sônia Maria Ramos Gonçalves CEMIG

Abstract

This work describes the impact of fish culture on water quality and presents a system to mitigate the negative effects. Each pond of the fish culture was treated with organic fertilizers or fish diet. The discharges of these ponds passed through an artificial lake which served as a retention system for fish escapees and nutrients. Over 2 years and 3 months water quality was investigated in the water intake of the fish culture, in the ponds, and in the lake. The fish culture caused significant (P < 0.05) eutrophication but after passing the lake, water quality data were similiar to the data of the intake. The growth of the fish escapees in the lake removed nutrients and resulted in an annual production of 1.5 t.

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Author Biography

Evoy Zaniboni Filho, UFSC
Atualmente é Professor Associado da Universidade Federal de Santa Catarina, vinculado ao Departamento de Aquicultura e bolsista de produtividade ligado ao Comitê Assessor de Aquicultura e Recursos Pesqueiros do Conselho Nacional de Desenvolvimento Científico e Tecnológico. Atua na área de piscicultura com ênfase no desenvolvimento de tecnologia de reprodução, larvicultura e aleviangem de espécies de peixes migradores nativos do Brasil. Atua ainda no monitoramento e manejo da ictiofauna e da pesca na região do alto rio Uruguai. Currículo Lattes
Published
2008-07-23
Section
Biological Sciences