title: Influence of inlet water on the biotic and abiotic variables in a fish pond.
abstract: The effects of treated and untreated water inlets with macrophytes on the improvement of water quality and zooplankton community were evaluated in a fish pond with continuous water flow. Water and zooplankton samples were retrieved at four sites during nine months. There were differences (p<0.01) between inlet water from fish pond and inlet water from canal with macrophytes, featuring higher concentrations of nutrient load, mainly TAN and TP in the former. The inlet water from fish pond contained a higher number of abundant species (9 species), whilst the water supply from the canal with macrophytes had a greater richness (31 species) of zooplankton species. Results showed that inlet water without macrophytes directly affected the characteristics of the water column and the dominance of zooplankton species such as Thermocyclops decipiens, and greater abundance of Rotifera species. Since aquatic plants in the inlet water of fish pond analyzed showed lower allochthonous material loads from the previous fish pond, the management adopted with macrophytes may be applied to avoid eutrophication risks, common in farm ponds.
authors.affiliation: Centro de Aquicultura, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo D. Castellane, s/n, CEP 14884-900, Jaboticabal, SP, Brazil.
authors.forename: L H
authors.initials: LH
authors.lastname: Sipaúba-Tavares
authors.affiliation: Centro de Aquicultura, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo D. Castellane, s/n, CEP 14884-900, Jaboticabal, SP, Brazil.
authors.forename: P A
authors.initials: PA
authors.lastname: Durigan
authors.affiliation: Centro de Aquicultura, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo D. Castellane, s/n, CEP 14884-900, Jaboticabal, SP, Brazil.
authors.forename: F A
authors.initials: FA
authors.lastname: Berchielli-Morais
authors.affiliation: Universidade do Estado de Minas Gerais - UEMG, Rua Mario Palmerio, 1001, CEP 38200-000, Frutal, MG, Brazil.
authors.forename: R N
authors.initials: RN
authors.lastname: Millan
mesh_terms: D000818:Animals; D017756:Aquaculture; D001673:Biodegradation, Environmental; D001938:Brazil; D010944:Plants / Q000378:metabolism*; D061005:Ponds / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D060753:Water Quality; D015048:Zooplankton / Q000502:physiology*
chemical_list: D014874:Water Pollutants, Chemical