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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
12/12/2017 |
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Data da última atualização: |
12/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARAÚJO, C. A. S. de; SAMPAIO, F. G.; ALCÂNTARA, E.; CURTARELLI, M. P.; OGASHAWARA, I.; STECH, J. L. |
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Afiliação: |
CARLOS ALBERTO SAMPAIO DE ARAUJO, INPE; FERNANDA GARCIA SAMPAIO, CNPMA; ENNER ALCANTARA, UNESP; MARCELO PEDROSO CURTARELLI, Fundação Centros de Referência em Tecnologias Inovadoras; IGOR OGAHSAWARA, Indiana University-Purdue University Indianapolis; JOSÉ LUIZ STECH, INPE. |
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Título: |
Effects of atmospheric cold fronts on stratification and water quality of a tropical reservoir: implications for aquaculture. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Aquaculture Environment Interactions, v. 9, p. 385-403, 2017. |
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ISSN: |
1869-7534 |
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DOI: |
https://doi.org/10.3354/aei00240 |
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Idioma: |
Inglês |
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Conteúdo: |
Stratification and mixing patterns of a water body are influenced by the variability of atmospheric systems, which can also modify their biogeochemical properties. The primary goal of this study was to analyze the effect of atmospheric cold fronts (CFs) on thermal stratification and water quality parameters in 4 embayments of the Furnas Hydroelectric Reservoir (FHR) (southeastern Brazil), a warm monomictic water body. A secondary goal was to evaluate the implications of this effect on the aquaculture of Nile tilapia Oreochromis niloticus (L.) in net cages. A 2 yr dataset of meteorological and water quality parameters was used to compute heat flux balance components and buoyancy frequency. These parameters were used to evaluate the influence of CFs on FHR water column stability and water quality. It was observed that the passing of CFs increased net heat loss and wind velocity, resulting in a partial mixture of surface waters with deeper layers. These changes in the physical structure of the water column altered the diel cycle of water temperature, led to a slight decrease in dissolved oxygen concentrations and pH values during the stratification period, and contributed to the increase in dilution power at the fish cultivation sites. However, following CF passages, no significant changes were observed in water quality parameters that influenced Nile tilapia cultivation in the FHR. Nevertheless, the understanding of meteorological systems and their influence on the physical and biogeochemical properties of an aquatic system is important for optimal management of aquaculture activities. MenosStratification and mixing patterns of a water body are influenced by the variability of atmospheric systems, which can also modify their biogeochemical properties. The primary goal of this study was to analyze the effect of atmospheric cold fronts (CFs) on thermal stratification and water quality parameters in 4 embayments of the Furnas Hydroelectric Reservoir (FHR) (southeastern Brazil), a warm monomictic water body. A secondary goal was to evaluate the implications of this effect on the aquaculture of Nile tilapia Oreochromis niloticus (L.) in net cages. A 2 yr dataset of meteorological and water quality parameters was used to compute heat flux balance components and buoyancy frequency. These parameters were used to evaluate the influence of CFs on FHR water column stability and water quality. It was observed that the passing of CFs increased net heat loss and wind velocity, resulting in a partial mixture of surface waters with deeper layers. These changes in the physical structure of the water column altered the diel cycle of water temperature, led to a slight decrease in dissolved oxygen concentrations and pH values during the stratification period, and contributed to the increase in dilution power at the fish cultivation sites. However, following CF passages, no significant changes were observed in water quality parameters that influenced Nile tilapia cultivation in the FHR. Nevertheless, the understanding of meteorological systems and their influence on the physical an... Mostrar Tudo |
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Palavras-Chave: |
Aquacultura; Cold front; Frente fria. |
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Thesagro: |
Lago; Oreochromis Niloticus; Qualidade da água; Tilápia nilótica. |
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Thesaurus Nal: |
Aquaculture; Water quality; Water reservoirs. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168748/1/2017AP37.pdf
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Marc: |
LEADER 02589naa a2200325 a 4500
001 2082243
005 2017-12-12
008 2017 bl uuuu u00u1 u #d
022 $a1869-7534
024 7 $ahttps://doi.org/10.3354/aei00240$2DOI
100 1 $aARAÚJO, C. A. S. de
245 $aEffects of atmospheric cold fronts on stratification and water quality of a tropical reservoir$bimplications for aquaculture.$h[electronic resource]
260 $c2017
520 $aStratification and mixing patterns of a water body are influenced by the variability of atmospheric systems, which can also modify their biogeochemical properties. The primary goal of this study was to analyze the effect of atmospheric cold fronts (CFs) on thermal stratification and water quality parameters in 4 embayments of the Furnas Hydroelectric Reservoir (FHR) (southeastern Brazil), a warm monomictic water body. A secondary goal was to evaluate the implications of this effect on the aquaculture of Nile tilapia Oreochromis niloticus (L.) in net cages. A 2 yr dataset of meteorological and water quality parameters was used to compute heat flux balance components and buoyancy frequency. These parameters were used to evaluate the influence of CFs on FHR water column stability and water quality. It was observed that the passing of CFs increased net heat loss and wind velocity, resulting in a partial mixture of surface waters with deeper layers. These changes in the physical structure of the water column altered the diel cycle of water temperature, led to a slight decrease in dissolved oxygen concentrations and pH values during the stratification period, and contributed to the increase in dilution power at the fish cultivation sites. However, following CF passages, no significant changes were observed in water quality parameters that influenced Nile tilapia cultivation in the FHR. Nevertheless, the understanding of meteorological systems and their influence on the physical and biogeochemical properties of an aquatic system is important for optimal management of aquaculture activities.
650 $aAquaculture
650 $aWater quality
650 $aWater reservoirs
650 $aLago
650 $aOreochromis Niloticus
650 $aQualidade da água
650 $aTilápia nilótica
653 $aAquacultura
653 $aCold front
653 $aFrente fria
700 1 $aSAMPAIO, F. G.
700 1 $aALCÂNTARA, E.
700 1 $aCURTARELLI, M. P.
700 1 $aOGASHAWARA, I.
700 1 $aSTECH, J. L.
773 $tAquaculture Environment Interactions$gv. 9, p. 385-403, 2017.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
25/11/2009 |
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Data da última atualização: |
25/11/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ALMEIDA, R. P.; SOARES, L. A.; BASSINELLO, P. Z.; MEDONÇA, A. L.; ARAÚJO, M. R. |
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Afiliação: |
R. P. ALMEIDA, UCG; L. A. SOARES, CEFET-GO; PRISCILA ZACZUK BASSINELLO, CNPAF; A. L. MEDONÇA, UCG; M. R. ARAÚJO, UCG. |
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Título: |
Desenvolvimento de mistura para bolo utilizando farinha de quirera de arroz e bandinha de feijão. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 8., 2009, Campinas. Ciência de alimentos no mundo globalizado: novos desafios, novas perspectivas. Campinas: Unicamp, 2009. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo do trabalho foi desenvolver mistura para bolo substituindo farinha de trigo, em diversas porcentagens, por diferentes proporções de farinha de quirera de arroz e de bandinha de feijão, avaliar tecnologicamente e sensorialmente as formulações. |
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Thesagro: |
Arroz; Farinha; Farinha Mista; Feijão; Panificação. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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Marc: |
LEADER 01045naa a2200241 a 4500
001 1576038
005 2009-11-25
008 2009 bl uuuu u00u1 u #d
100 1 $aALMEIDA, R. P.
245 $aDesenvolvimento de mistura para bolo utilizando farinha de quirera de arroz e bandinha de feijão.
260 $c2009
300 $c1 CD-ROM.
520 $aO objetivo do trabalho foi desenvolver mistura para bolo substituindo farinha de trigo, em diversas porcentagens, por diferentes proporções de farinha de quirera de arroz e de bandinha de feijão, avaliar tecnologicamente e sensorialmente as formulações.
650 $aArroz
650 $aFarinha
650 $aFarinha Mista
650 $aFeijão
650 $aPanificação
700 1 $aSOARES, L. A.
700 1 $aBASSINELLO, P. Z.
700 1 $aMEDONÇA, A. L.
700 1 $aARAÚJO, M. R.
773 $tIn: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS, 8., 2009, Campinas. Ciência de alimentos no mundo globalizado: novos desafios, novas perspectivas. Campinas: Unicamp, 2009.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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