, Volume 257, Issue 3, pp 143–152

Control of eutrophication by silver carp (Hypophthalmichthys molitrix) in the tropical Paranoá Reservoir (Brasília, Brazil): a mesocosm experiment

  • Fernando Luís do Rêgo Monteiro Starling


A mesocosm experiment was conducted to assess the impact of moderate silver carp (Hypophthalmichthys molitrix) biomass (41 g m−3 or 850 kg ha−1) on the plankton community and water quality of eutrophic Paranoá Reservoir (Brasília, Brazil). Microzooplankton (copepod nauplii and rotifers <200 μm), netphytoplankton (> 20 μm), total phytoplankton biomass (expressed as chlorophyll-a) and net primary productivity were significantly reduced by silver carp. Apart from increased nitrogen in the sediment, nutrients and chemical properties of the water were not affected by fish presence. The observed improvements in water quality suggest that stocking silver carp in Paranoá Reservoir to control blue-green algae is a promising biomanipulation practice.

Key words

biomanipulation silver carp phytoplanktivorous fish tropical eutrophic reservoir 


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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Fernando Luís do Rêgo Monteiro Starling
    • 1
    • 2
  1. 1.Companhia de Agua e Esgotos de Brasília (CAESB)SCMA/DVMQ/SPPA/DRSA, Q.04 BI.A n° 67/97 Ed. CAESB SCSBrasilia-DFBrazil
  2. 2.Rijksuniversiteit GentLaboratorium voor Ecologie der DierenGentBelgium

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