Water Quality and Effluents Generated during Rainbow Trout Culture in a Raceway System

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dc.creatorAna Paula Monschau Funck
dc.creatorJosé Antonio Beirão Simões
dc.creatorMarina Guimarães Ferreira
dc.creatorEdenilce de Fátima Ferreira Martins
dc.creatorFabiano Aurélio da Silva Oliveira
dc.creatorLuciano Dos Santos Rodrigues
dc.creatorMarília Martins Melo
dc.creatorKleber Campos Miranda Filho
dc.date.accessioned2024-04-18T20:43:29Z
dc.date.accessioned2025-09-09T00:08:57Z
dc.date.available2024-04-18T20:43:29Z
dc.date.issued2019-03-29
dc.format.mimetypepdf
dc.identifier.doihttp://dx.doi.org/10.26717/BJSTR.2019.16.002921
dc.identifier.issn2574-1241
dc.identifier.urihttps://hdl.handle.net/1843/67442
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBiomedical Journal of Scientific & Technical Research
dc.rightsAcesso Aberto
dc.subjectOceanografia
dc.subjectQualidade da água
dc.subjectAquicultura
dc.subjectPesqueiros
dc.subject.otherQualidade da água em aquacultura
dc.subject.otherAquicultura
dc.subject.otherPiscicultura
dc.subject.otherTruticultura
dc.titleWater Quality and Effluents Generated during Rainbow Trout Culture in a Raceway System
dc.typeArtigo de periódico
local.citation.epage12402
local.citation.issue5
local.citation.spage12391
local.citation.volume16
local.description.resumoThe objective of this study was to evaluate the quality of water and the polluting load generated by two commercial trout farms (A e B) in a raceway system during the years of 2013, 2014 and 2015 in the rainy season (October to March) and dry season (April to September). Six collection points demarcated in the trout farm A, with total 84 samples and 9 collection points in trout farm B, with total 126 samples. The collection points defined as follows: tributary, effluent, upstream and downstream in the two trout farms. Biochemical oxygen demand (BOD), dissolved oxygen (OD), ammoniacal nitrogen (NH3 +NH4+ ), nitrite (NO2- ), nitrate (NO3- ), phosphate (PO43-), alkalinity, turbidity and thermotolerant coliforms were determined according to the protocol described in Standard Methods Water and Wastewater (APHA, 2008). Analyzes of temperature, pH, electrical conductivity (EC), total dissolved solids (TDS) and salinity performed in situ. The Physiochemical variables evaluated between the rainy and dry seasons, in the A and B trout farms, differed for EC, BOD, NH3 +NH4+ , PO43-, TDS, temperature and turbidity. In trout farm B, chloride and pH levels also showed significant differences. About the collection points, the two trout farms presented differences for TDS. The trout farm A showed difference for BOD and trout farm B, for alkalinity and EC. There was an interaction effect between collection points and rainfall and dry seasons as a source of variation in the two trout farms, with differences observed for the variables EC, TDS and temperature, but there were also differences in trout farm A for BOD and NH3 +NH4+ , in the trout farm B, the alkalinity presented significant differences (p<0.05). In the study with thermotolerant coliforms in the trout farm A differences were observed between rainy and dry seasons, but without differences between the collection points. In trout farm B there was no difference between rainy and dry seasons. Regarding the presence of Escherichia coli bacteria, no difference observed in trout farm A, only in trout farm B there was difference. It was demonstrated in this study that the physicochemical and microbiological alterations evaluated are within the standards of comfort for the cultivated species and in accordance with the effluent release standard of the Brazilian legislation, showing minimal impact to the receiving water bodies.
local.identifier.orcidhttps://orcid.org/0000-0003-0555-8305
local.publisher.countryBrasil
local.publisher.departmentVET - DEPARTAMENTO DE ZOOTECNIA
local.publisher.departmentVETER - ESCOLA DE VETERINARIA
local.publisher.initialsUFMG
local.url.externahttps://biomedres.us/fulltexts/BJSTR.MS.ID.002921.php

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