Influence of a net cage tilapia culture on the water quality of the Nova Avanhandava reservoir, São Paulo state, Brazil

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dc.contributor.authorMallasen, Margarete
dc.contributor.authorde Barros, Helenice Pereira
dc.contributor.authorTraficante, Daniela Polizeli [UNESP]
dc.contributor.authorCamargo, André Luiz Scarano
dc.contributor.institutionInstituto de Pesca
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionEscama Forte Aquacultura e Meio Ambiente Ltda
dc.date.accessioned2022-04-29T08:44:30Z
dc.date.available2022-04-29T08:44:30Z
dc.date.issued2012-01-01
dc.description.abstractIn order to understand the influence of a net cage tilapia culture on the environment, water quality parameters were investigated during the period between December, 2005 and November, 2007. Three sampling stations were established in the reservoir of Nova Avanhandava (Zacarias, São Paulo State) as follows: upstream of net cage area (P1), in the rearing place (P2) and downstream of net cage area (P3). The mean values of the parameters examined in the water sampling stations were within the standards of water quality recommended by resolution no. 357/2005 of the Conselho Nacional do Meio Ambiente for class 2 freshwater bodies. A significantly higher mean concentration of total phosphorus (p < 0.05) in the P2 (0.035 mg L-1) was the result of the uneaten feed and feces of fish. The average concentration of total phosphorus in P3 was lower (0.015 mg L-1), which was assimilated by the aquatic ecosystem. The frequent monitoring of the water parameters is fundamental, so the producer can adjust the management according to environmental conditions, by reducing fish density or changing feeding rates for example, to mitigate or avoid water quality deterioration.en
dc.description.affiliationInstituto de Pesca, Cx. Postal 1052, 15025-970, Sao Jose do Rio Preto, Sao Paulo
dc.description.affiliationUniversadade Estadual Paulista Julio de Mesquita Filho, Botucatu, São Paulo
dc.description.affiliationEscama Forte Aquacultura e Meio Ambiente Ltda, Itapevi, São Paulo
dc.description.affiliationUnespUniversadade Estadual Paulista Julio de Mesquita Filho, Botucatu, São Paulo
dc.format.extent289-296
dc.identifierhttp://dx.doi.org/10.4025/actascibiolsci.v34i3.7298
dc.identifier.citationActa Scientiarum - Biological Sciences, v. 34, n. 3, p. 289-296, 2012.
dc.identifier.doi10.4025/actascibiolsci.v34i3.7298
dc.identifier.issn1807-863X
dc.identifier.issn1679-9283
dc.identifier.scopus2-s2.0-84863594455
dc.identifier.urihttp://hdl.handle.net/11449/231287
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofActa Scientiarum - Biological Sciences
dc.sourceScopus
dc.subjectIntensive fish farming
dc.subjectLimnology
dc.subjectNutrients
dc.subjectPhosphorus
dc.subjectTilapia
dc.titleInfluence of a net cage tilapia culture on the water quality of the Nova Avanhandava reservoir, São Paulo state, Brazilen
dc.titleInfluência da tilapicultura em tanques-rede sobre a qualidade da água no reservatório de Nova Avanhandava, Estado de São Paulo, Brasilpt
dc.typeArtigo

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Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp