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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
08/12/2021 |
Data da última atualização: |
08/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA, M. G. da; SAMPAIO, F. G.; TANIWAKI, R. H.; BARROS, N. O.; ALVALÁ, P. C.; BETTANIN, V. C.; GAROFALO, D. F. T.; COSTA, D. O. da; AYER, J. E. B.; GONDEK, T. P.; PACKER, A. P. |
Afiliação: |
MARCELO GOMES DA SILVA, CNPq; FERNANDA GARCIA SAMPAIO, CNPMA; RICARDO HIDEO TANIWAKI, UFABC; NATHAN OLIVEIRA BARROS, UFJF; PLINIO CARLOS ALVALÁ, INPE; VIVIANE CRISTINA BETTANIN, CNPMA; DANILO FRANCISCO TROVO GAROFALO; DANILO OLIVEIRA DA COSTA, CNPq; JOAQUIM ERNESTO BERNARDES AYER, CNPq; THASSIA PINE GONDEK, CNPq; ANA PAULA CONTADOR PACKER, CNPMA. |
Título: |
Increase of methane emission linked to net cage fish farms in a tropical reservoir. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Environmental Challenges, v. 5, article 100287, 2021. |
DOI: |
https://doi.org/10.1016/j.envc.2021.100287 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: This study aimed to evaluate the influence of Nile tilapia (Oreochromis niloticus) net cage farming on methane (CH4) emission in a Brazilian tropical reservoir through the quantification of spatial and seasonal variations of diffusive and ebullitive CH4 emissions. To explain the variability of CH4 emission, a hierarchical identification of limnologic and atmospheric parameters was used. A significant increase in diffusive emissions from net cage sites (33.4 ± 54.9 mg Csingle bondCH4 m−2 d−1) was observed when compared to the sites before (4.4 ± 9.4 mg Csingle bondCH4 m−2 d−1) and after (6.2 ± 15.6 mg Csingle bondCH4 m−2 d−1) the net cages. Also, significant increase of ebullitive emissions was also observed from the net cage sites (2,417.1 ± 2,040.7 mg Csingle bondCH4 m−2 d−1) when compared to the average emissions from sites before (1.1 ± 2.1 mg Csingle bondCH4 m−2 d−1) and after (88.7 ± 92.6 mg Csingle bondCH4 m−2 d−1). Results showed a decrease in average CH4 emissions towards the sites after the net cages in all sampled areas which suggests that the influence of tilapia fish farming is local. The highest averages in the reservoir areas for diffusive and ebullitive CH4 emissions were observed in areas with higher production of tilapia. Finally, seasonal variation was observed on diffuse CH4 emission. High concentrations of carbon and phosphorus in water and sediment were the main drivers for increasing diffusive and ebullitive methane emissions. Our findings provide valuable information that tilapia net cage farming in reservoirs can be associated with local and dispersive increased methane emissions. MenosAbstract: This study aimed to evaluate the influence of Nile tilapia (Oreochromis niloticus) net cage farming on methane (CH4) emission in a Brazilian tropical reservoir through the quantification of spatial and seasonal variations of diffusive and ebullitive CH4 emissions. To explain the variability of CH4 emission, a hierarchical identification of limnologic and atmospheric parameters was used. A significant increase in diffusive emissions from net cage sites (33.4 ± 54.9 mg Csingle bondCH4 m−2 d−1) was observed when compared to the sites before (4.4 ± 9.4 mg Csingle bondCH4 m−2 d−1) and after (6.2 ± 15.6 mg Csingle bondCH4 m−2 d−1) the net cages. Also, significant increase of ebullitive emissions was also observed from the net cage sites (2,417.1 ± 2,040.7 mg Csingle bondCH4 m−2 d−1) when compared to the average emissions from sites before (1.1 ± 2.1 mg Csingle bondCH4 m−2 d−1) and after (88.7 ± 92.6 mg Csingle bondCH4 m−2 d−1). Results showed a decrease in average CH4 emissions towards the sites after the net cages in all sampled areas which suggests that the influence of tilapia fish farming is local. The highest averages in the reservoir areas for diffusive and ebullitive CH4 emissions were observed in areas with higher production of tilapia. Finally, seasonal variation was observed on diffuse CH4 emission. High concentrations of carbon and phosphorus in water and sediment were the main drivers for... Mostrar Tudo |
Palavras-Chave: |
Net cages; Reservoir. |
Thesagro: |
Metano; Piscicultura; Reservatório de Água; Tilápia Nilótica. |
Thesaurus Nal: |
Aquaculture tanks; Fish cages; Fish farms; Greenhouse gas emissions; Methane; Tilapia (common name). |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02851naa a2200397 a 4500 001 2137352 005 2021-12-08 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.envc.2021.100287$2DOI 100 1 $aSILVA, M. G. da 245 $aIncrease of methane emission linked to net cage fish farms in a tropical reservoir.$h[electronic resource] 260 $c2021 520 $aAbstract: This study aimed to evaluate the influence of Nile tilapia (Oreochromis niloticus) net cage farming on methane (CH4) emission in a Brazilian tropical reservoir through the quantification of spatial and seasonal variations of diffusive and ebullitive CH4 emissions. To explain the variability of CH4 emission, a hierarchical identification of limnologic and atmospheric parameters was used. A significant increase in diffusive emissions from net cage sites (33.4 ± 54.9 mg Csingle bondCH4 m−2 d−1) was observed when compared to the sites before (4.4 ± 9.4 mg Csingle bondCH4 m−2 d−1) and after (6.2 ± 15.6 mg Csingle bondCH4 m−2 d−1) the net cages. Also, significant increase of ebullitive emissions was also observed from the net cage sites (2,417.1 ± 2,040.7 mg Csingle bondCH4 m−2 d−1) when compared to the average emissions from sites before (1.1 ± 2.1 mg Csingle bondCH4 m−2 d−1) and after (88.7 ± 92.6 mg Csingle bondCH4 m−2 d−1). Results showed a decrease in average CH4 emissions towards the sites after the net cages in all sampled areas which suggests that the influence of tilapia fish farming is local. The highest averages in the reservoir areas for diffusive and ebullitive CH4 emissions were observed in areas with higher production of tilapia. Finally, seasonal variation was observed on diffuse CH4 emission. High concentrations of carbon and phosphorus in water and sediment were the main drivers for increasing diffusive and ebullitive methane emissions. Our findings provide valuable information that tilapia net cage farming in reservoirs can be associated with local and dispersive increased methane emissions. 650 $aAquaculture tanks 650 $aFish cages 650 $aFish farms 650 $aGreenhouse gas emissions 650 $aMethane 650 $aTilapia (common name) 650 $aMetano 650 $aPiscicultura 650 $aReservatório de Água 650 $aTilápia Nilótica 653 $aNet cages 653 $aReservoir 700 1 $aSAMPAIO, F. G. 700 1 $aTANIWAKI, R. H. 700 1 $aBARROS, N. O. 700 1 $aALVALÁ, P. C. 700 1 $aBETTANIN, V. C. 700 1 $aGAROFALO, D. F. T. 700 1 $aCOSTA, D. O. da 700 1 $aAYER, J. E. B. 700 1 $aGONDEK, T. P. 700 1 $aPACKER, A. P. 773 $tEnvironmental Challenges$gv. 5, article 100287, 2021.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
24/01/2012 |
Data da última atualização: |
24/01/2012 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SILVA, L. S. da; MAZZOCATO, A. C.; PAVAN, F. A. |
Afiliação: |
LAURA SARAVIA DA SILVA, UNIPAMPA; ANA CRISTINA MAZZOCATO, CPPSUL; FLÁVIO A. PAVAN, UNIPAMPA. |
Título: |
Uso de gramínea na remoção de substâncias tóxicas de águas: uma proposta pedagógica sustentável do ensino de química no ensino médio. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: ENCONTRO DE DEBATES SOBRE ENSINO DE QUÍMICA, 31., 2011, Rio Grande. Rodas de formação de professores no ano internacional da química: e-book. Rio Grande: FURG, 2011. |
Idioma: |
Português |
Thesagro: |
Gramínea. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/52822/1/ACM-metas11.pdf
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Marc: |
LEADER 00614nam a2200133 a 4500 001 1913275 005 2012-01-24 008 2011 bl uuuu u00u1 u #d 100 1 $aSILVA, L. S. da 245 $aUso de gramínea na remoção de substâncias tóxicas de águas$buma proposta pedagógica sustentável do ensino de química no ensino médio.$h[electronic resource] 260 $aIn: ENCONTRO DE DEBATES SOBRE ENSINO DE QUÍMICA, 31., 2011, Rio Grande. Rodas de formação de professores no ano internacional da química: e-book. Rio Grande: FURG$c2011 650 $aGramínea 700 1 $aMAZZOCATO, A. C. 700 1 $aPAVAN, F. A.
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