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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
08/12/2015 |
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Data da última atualização: |
17/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MACEDO, H. de A.; STEVAUX, J. C.; SILVA, A.; MERINO, E. R.; PUPIM, F. do N.; BERGIER, I. |
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Afiliação: |
HUDSON DE AZEVEDO MACEDO, UNESP; JOSÉ CÂNDIDO STEVAUX, UNESP; AGUINALDO SILVA, UFMS; EDER RENATO MERINO, UNESP; FABIANO DO NASCIMENTO PUPIM, USP; IVAN BERGIER TAVARES DE LIMA, CPAP. |
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Título: |
Methodology for analysis of distribution and classification of the intensity of dequada fish kill events in the Pantanal wewtland. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
GEOGRAFIA, Rio Claro, v. 40, Número Especial, p. 163-176, ago. 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Extensive fish mortality occurs occasionally in the Pantanal wetland and the phenomenon is called dequada by local inhabitants. The phenomenon originates by deterioration water quality in rivers and lakes, and the depletion of dissolved oxygen (DO) is the major indicator. Researches have shown that dequada occurs when DO reaches values lower than 3 mg/L. In addition, the duration of these low DO values determines the intensity of fish mortality. This paper presents a proposed classification of dequada event, using water quality data for Pantanal rivers surveyed by National Agency of Water (ANA). The proposed method has qualitative and quantitative bases and utilizes mean DO value and duration of these values, based on historical series of DO measurements. The results are compared to other studies of the dequada phenomenon, showing that the method is efficient to determine locales with higher probability of dequada. The Paraguay River has displayed highest dequada intensity. The rivers with narrower floodplains, such as Piquiri River, do not have dequada or the intensity is lower. The phenomenon is shown to be linked to basin hydrological conditions. |
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Palavras-Chave: |
Depleção do oxigênio; Dequada; Oxygen depletion. |
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Thesagro: |
Limnologia; Qualidade da Água. |
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Thesaurus Nal: |
Limnology; Oxygen consumption; water quality. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01990naa a2200277 a 4500
001 2030966
005 2016-11-17
008 2015 bl --- 0-- u #d
100 1 $aMACEDO, H. de A.
245 $aMethodology for analysis of distribution and classification of the intensity of dequada fish kill events in the Pantanal wewtland.
260 $c2015
520 $aExtensive fish mortality occurs occasionally in the Pantanal wetland and the phenomenon is called dequada by local inhabitants. The phenomenon originates by deterioration water quality in rivers and lakes, and the depletion of dissolved oxygen (DO) is the major indicator. Researches have shown that dequada occurs when DO reaches values lower than 3 mg/L. In addition, the duration of these low DO values determines the intensity of fish mortality. This paper presents a proposed classification of dequada event, using water quality data for Pantanal rivers surveyed by National Agency of Water (ANA). The proposed method has qualitative and quantitative bases and utilizes mean DO value and duration of these values, based on historical series of DO measurements. The results are compared to other studies of the dequada phenomenon, showing that the method is efficient to determine locales with higher probability of dequada. The Paraguay River has displayed highest dequada intensity. The rivers with narrower floodplains, such as Piquiri River, do not have dequada or the intensity is lower. The phenomenon is shown to be linked to basin hydrological conditions.
650 $aLimnology
650 $aOxygen consumption
650 $awater quality
650 $aLimnologia
650 $aQualidade da Água
653 $aDepleção do oxigênio
653 $aDequada
653 $aOxygen depletion
700 1 $aSTEVAUX, J. C.
700 1 $aSILVA, A.
700 1 $aMERINO, E. R.
700 1 $aPUPIM, F. do N.
700 1 $aBERGIER, I.
773 $tGEOGRAFIA, Rio Claro$gv. 40, Número Especial, p. 163-176, ago. 2015.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 9 | |
| 3. |  | ASSINE, M. L.; MACEDO, H. A.; STEVAUX, J. C.; BERGIER, I.; PADOVANI, C. R.; SILVA, A. Avulsive rivers in the hydrology of the Pantanal wetland. In: BERGIER, I.; ASSINE, M. L. (Ed.). Dynamics of the Pantanal Wetland in South America. Switzerland: Springer International Publishing, 2016. p. 83-110. (The Handbook of Environmental Chemistry, 37)| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Pantanal. |
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| 5. | | RASBOLD, G. G.; McGLUE, M. M.; STEVAUX, J. C.; PAROLIN, M.; SILVA, A.; BERGIER, I. Sponge spicule and phytolith evidence for Late Quaternary environmental changes in the tropical Pantanal wetlands of western Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 518, p. 119-133, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pantanal. |
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| 7. | | RASBOLD, G. G.; MCGLUE, M. M.; STEVAUX, J. C.; PAROLIN, M.; SILVA, A.; BERGIER, I.; LUZ, L. D. Microfossil and stratigraphic evidence for late quaternary paleoenvironmental changes at Lagoa Negra, Central Pantanal wetlands (Brazil). In: FALL MEETING, 2018, Washington, D.C. Abstracts... Washington, D.C: American Geophysical Union, 2018. Não paginado. AGU 2018. Session PP23D-1525.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 8. | | MACEDO, H. de A.; STEVAUX, J. C.; SILVA, A.; MERINO, E. R.; PUPIM, F. do N.; BERGIER, I. Methodology for analysis of distribution and classification of the intensity of dequada fish kill events in the Pantanal wewtland. GEOGRAFIA, Rio Claro, v. 40, Número Especial, p. 163-176, ago. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pantanal. |
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| 9. | | MACEDO, H. de A.; STEVAUX, J. C.; SILVA, A.; MERINO, E. R.; PUPIM, F. do N.; BERGIER, I. Distribuição e classificação da intensidade do fenômeno de dequada no Pantanal. In: SIMPÓSIO DE GEOTECNOLOGIAS NO PANTANAL, 5., 2014, Campo Grande, MS. Anais... São José dos Campos: INPE, 2014. p. 720-730| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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