Assessment of environmental impacts of the semi-intensive tilapia culture system

Detalhes bibliográficos
Autor(a) principal: Kist, Lourdes Teresinha
Data de Publicação: 2015
Outros Autores: Porciuncula, Angela, Machado, Enio Leandro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Monografias Ambientais
Texto Completo: http://periodicos.ufsm.br/remoa/article/view/19564
Resumo: The main objective of the present study is to assess the physical, chemical and bacteriological characteristics of continuous wastewater and of fish harvesting in tilapia (Oreochromis niloticus) farming, considering the possible effects of wastewater discharges and alternatives to minimize their effects. The samples were collected between April and October, thus spanning the whole developmental cycle of tilapia. The dissolved oxygen demand is the major cause of environmental problems, but the eutrophication index is low despite considerable total phosphorus levels compared to the legal standards established by Resolution 357/05 of the Brazilian National Environmental Council (CONAMA). The environmental pressure index amounted to 2.47, which underscores the necessity for measures that can minimize this impact. The use of wastewaters in irrigation is the best alternative, resulting in rational water use, lower fertilizer utilization rates and reduction of water pollution.
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spelling Assessment of environmental impacts of the semi-intensive tilapia culture systemAvaliação dos impactos ambientais da tilápia cultivada em sistema semi-intensivoImpact of wastewatersFish farmingTilapiaImpacto de águas residuaisPisciculturaTilápiaThe main objective of the present study is to assess the physical, chemical and bacteriological characteristics of continuous wastewater and of fish harvesting in tilapia (Oreochromis niloticus) farming, considering the possible effects of wastewater discharges and alternatives to minimize their effects. The samples were collected between April and October, thus spanning the whole developmental cycle of tilapia. The dissolved oxygen demand is the major cause of environmental problems, but the eutrophication index is low despite considerable total phosphorus levels compared to the legal standards established by Resolution 357/05 of the Brazilian National Environmental Council (CONAMA). The environmental pressure index amounted to 2.47, which underscores the necessity for measures that can minimize this impact. The use of wastewaters in irrigation is the best alternative, resulting in rational water use, lower fertilizer utilization rates and reduction of water pollution.O principal objetivo do presente estudo é avaliar as características físicas, químicas e bacteriológicas dos efluentes contínuos e da despesca de peixes como a tilápia (Oreochromis niloticus), analisar os possíveis impactos das descargas de águas residuais e propor alternativas para minimizar os seus efeitos. As amostras foram coletadas entre abril e outubro, abrangendo assim todo o ciclo de desenvolvimento de tilápia. A demanda de oxigênio dissolvido é a principal causa de problemas ambientais, mas o índice de eutrofização é baixo, apesar de apresentar consideráveis níveis de fósforo total em comparação com os padrões legais estabelecidos pela Resolução 357/05 do Conselho Nacional do Meio Ambiente do Brasil (CONAMA). O índice de pressão ambiental elevou-se a 2,47, o que reforça a necessidade de medidas que possam minimizar esse impacto. A utilização de águas residuais na irrigação é a melhor alternativa, resultando em uso racional da água, menores taxas de utilização de fertilizantes e redução da poluição hídrica.Universidade Federal de Santa Maria2015-12-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://periodicos.ufsm.br/remoa/article/view/1956410.5902/2236130819564Monografias Ambientais; REMOA, V. 15, N. 1, JAN.-APR., 2016; 53-60Revista Monografias Ambientais; REMOA, V. 15, N. 1, JAN.-ABR., 2016; 53-602236-13082236-1308reponame:Revista Monografias Ambientaisinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMenghttp://periodicos.ufsm.br/remoa/article/view/19564/pdfCopyright (c) 2016 Revista Monografias Ambientaisinfo:eu-repo/semantics/openAccessKist, Lourdes TeresinhaPorciuncula, AngelaMachado, Enio Leandro2021-05-07T12:42:35Zoai:ojs.pkp.sfu.ca:article/19564Revistahttps://periodicos.ufsm.br/remoaONGhttp://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/remoa/oai||remoa.ufsm@gmail.com2236-13082236-1308opendoar:2021-05-07T12:42:35Revista Monografias Ambientais - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Assessment of environmental impacts of the semi-intensive tilapia culture system
Avaliação dos impactos ambientais da tilápia cultivada em sistema semi-intensivo
title Assessment of environmental impacts of the semi-intensive tilapia culture system
spellingShingle Assessment of environmental impacts of the semi-intensive tilapia culture system
Kist, Lourdes Teresinha
Impact of wastewaters
Fish farming
Tilapia
Impacto de águas residuais
Piscicultura
Tilápia
title_short Assessment of environmental impacts of the semi-intensive tilapia culture system
title_full Assessment of environmental impacts of the semi-intensive tilapia culture system
title_fullStr Assessment of environmental impacts of the semi-intensive tilapia culture system
title_full_unstemmed Assessment of environmental impacts of the semi-intensive tilapia culture system
title_sort Assessment of environmental impacts of the semi-intensive tilapia culture system
author Kist, Lourdes Teresinha
author_facet Kist, Lourdes Teresinha
Porciuncula, Angela
Machado, Enio Leandro
author_role author
author2 Porciuncula, Angela
Machado, Enio Leandro
author2_role author
author
dc.contributor.author.fl_str_mv Kist, Lourdes Teresinha
Porciuncula, Angela
Machado, Enio Leandro
dc.subject.por.fl_str_mv Impact of wastewaters
Fish farming
Tilapia
Impacto de águas residuais
Piscicultura
Tilápia
topic Impact of wastewaters
Fish farming
Tilapia
Impacto de águas residuais
Piscicultura
Tilápia
description The main objective of the present study is to assess the physical, chemical and bacteriological characteristics of continuous wastewater and of fish harvesting in tilapia (Oreochromis niloticus) farming, considering the possible effects of wastewater discharges and alternatives to minimize their effects. The samples were collected between April and October, thus spanning the whole developmental cycle of tilapia. The dissolved oxygen demand is the major cause of environmental problems, but the eutrophication index is low despite considerable total phosphorus levels compared to the legal standards established by Resolution 357/05 of the Brazilian National Environmental Council (CONAMA). The environmental pressure index amounted to 2.47, which underscores the necessity for measures that can minimize this impact. The use of wastewaters in irrigation is the best alternative, resulting in rational water use, lower fertilizer utilization rates and reduction of water pollution.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://periodicos.ufsm.br/remoa/article/view/19564
10.5902/2236130819564
url http://periodicos.ufsm.br/remoa/article/view/19564
identifier_str_mv 10.5902/2236130819564
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://periodicos.ufsm.br/remoa/article/view/19564/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2016 Revista Monografias Ambientais
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 Revista Monografias Ambientais
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Monografias Ambientais; REMOA, V. 15, N. 1, JAN.-APR., 2016; 53-60
Revista Monografias Ambientais; REMOA, V. 15, N. 1, JAN.-ABR., 2016; 53-60
2236-1308
2236-1308
reponame:Revista Monografias Ambientais
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Revista Monografias Ambientais
collection Revista Monografias Ambientais
repository.name.fl_str_mv Revista Monografias Ambientais - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||remoa.ufsm@gmail.com
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