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1. | | SILVA, M. G. da; PACKER, A. P.; SAMPAIO, F. G.; MARANI, L.; MARIANO, E. V. C.; PAZIANOTTO, R. A. A.; FERREIRA, W. J.; ALVALÁ, P. C. Impact of intensive fish farming on methane emission in a tropical hydropower reservoir. Climatic Change, v. 150, n. 3-4, p. 150-195, 2018. Biblioteca(s): Embrapa Meio Ambiente. |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
08/11/2018 |
Data da última atualização: |
30/10/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, M. G. da; PACKER, A. P.; SAMPAIO, F. G.; MARANI, L.; MARIANO, E. V. C.; PAZIANOTTO, R. A. A.; FERREIRA, W. J.; ALVALÁ, P. C. |
Afiliação: |
MARCELO GOMES DA SILVA, CNPq; ANA PAULA CONTADOR PACKER, CNPMA; FERNANDA GARCIA SAMPAIO, CNPMA; LUCIANO MARANI, INPE; ERICKA VOSS CHAGAS MARIANO, UFAL; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; WILLIAM JOSE FERREIRA, INPE; PLINIO CARLOS ALVALA, INPE. |
Título: |
Impact of intensive fish farming on methane emission in a tropical hydropower reservoir. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Climatic Change, v. 150, n. 3-4, p. 150-195, 2018. |
ISSN: |
1573-1480 |
DOI: |
https://doi.org/10.1007/s10584-018-2281-4 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Fisheries and aquaculture are important sources of food for hundreds of millions of people around the world. World fish production is projected to increase by 15% in the next 10 years, reaching around 200 million tonnes per year. The main driver of this increase will be based on fish farming management in developing countries. In Brazil, fish farming is increasing due to the climate conditions and large supply of water resources, with the production system based on Nile tilapia (Oreochromis niloticus) farming in reservoirs. Inland waters like reservoirs are a natural source of methane (CH4) to the atmosphere. However, knowledge of the impact from intensive fish production in net cages on CH4 fluxes is not well known. This paper presents in situ measurements of CH4 fluxes and dissolved CH4 (DM) in the Furnas Hydroelectric Reservoir in order to evaluate the impact of fish farming on methane emissions. Measurements were taken in a control area without fish production and three areas with fish farming. The overall mean of diffusive methane flux (DMF) (5.9 ± 4.5 mg CH4 m-2 day-1) was significantly lower when compared to the overall mean of bubble methane flux (BMF) (552.9 ± 1003.9 mg CH4 m-2 day-1). The DMF and DM were significantly higher in the two areas with fish farming, whereas the BMF was not significantly different. The DMF and DM were correlated to depth and chlorophyll-a. However, the low production of BMF did not allow the comparison with the limnological parameters measured. This case study shows that CH4 emissions are influenced more by reservoir characteristics than fish production. Further investigation is necessary to assess the impact of fish farming on the greenhouse gas emissions. MenosAbstract: Fisheries and aquaculture are important sources of food for hundreds of millions of people around the world. World fish production is projected to increase by 15% in the next 10 years, reaching around 200 million tonnes per year. The main driver of this increase will be based on fish farming management in developing countries. In Brazil, fish farming is increasing due to the climate conditions and large supply of water resources, with the production system based on Nile tilapia (Oreochromis niloticus) farming in reservoirs. Inland waters like reservoirs are a natural source of methane (CH4) to the atmosphere. However, knowledge of the impact from intensive fish production in net cages on CH4 fluxes is not well known. This paper presents in situ measurements of CH4 fluxes and dissolved CH4 (DM) in the Furnas Hydroelectric Reservoir in order to evaluate the impact of fish farming on methane emissions. Measurements were taken in a control area without fish production and three areas with fish farming. The overall mean of diffusive methane flux (DMF) (5.9 ± 4.5 mg CH4 m-2 day-1) was significantly lower when compared to the overall mean of bubble methane flux (BMF) (552.9 ± 1003.9 mg CH4 m-2 day-1). The DMF and DM were significantly higher in the two areas with fish farming, whereas the BMF was not significantly different. The DMF and DM were correlated to depth and chlorophyll-a. However, the low production of BMF did not allow the comparison with the limnological para... Mostrar Tudo |
Thesagro: |
Impacto Ambiental; Metano; Mudança Climática; Piscicultura; Reservatório de Água. |
Thesaurus NAL: |
Environmental impact; Fish culture; Greenhouse gas emissions; Hydroelectric power; Methane; Water reservoirs. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02793naa a2200361 a 4500 001 2099034 005 2019-10-30 008 2018 bl uuuu u00u1 u #d 022 $a1573-1480 024 7 $ahttps://doi.org/10.1007/s10584-018-2281-4$2DOI 100 1 $aSILVA, M. G. da 245 $aImpact of intensive fish farming on methane emission in a tropical hydropower reservoir.$h[electronic resource] 260 $c2018 520 $aAbstract: Fisheries and aquaculture are important sources of food for hundreds of millions of people around the world. World fish production is projected to increase by 15% in the next 10 years, reaching around 200 million tonnes per year. The main driver of this increase will be based on fish farming management in developing countries. In Brazil, fish farming is increasing due to the climate conditions and large supply of water resources, with the production system based on Nile tilapia (Oreochromis niloticus) farming in reservoirs. Inland waters like reservoirs are a natural source of methane (CH4) to the atmosphere. However, knowledge of the impact from intensive fish production in net cages on CH4 fluxes is not well known. This paper presents in situ measurements of CH4 fluxes and dissolved CH4 (DM) in the Furnas Hydroelectric Reservoir in order to evaluate the impact of fish farming on methane emissions. Measurements were taken in a control area without fish production and three areas with fish farming. The overall mean of diffusive methane flux (DMF) (5.9 ± 4.5 mg CH4 m-2 day-1) was significantly lower when compared to the overall mean of bubble methane flux (BMF) (552.9 ± 1003.9 mg CH4 m-2 day-1). The DMF and DM were significantly higher in the two areas with fish farming, whereas the BMF was not significantly different. The DMF and DM were correlated to depth and chlorophyll-a. However, the low production of BMF did not allow the comparison with the limnological parameters measured. This case study shows that CH4 emissions are influenced more by reservoir characteristics than fish production. Further investigation is necessary to assess the impact of fish farming on the greenhouse gas emissions. 650 $aEnvironmental impact 650 $aFish culture 650 $aGreenhouse gas emissions 650 $aHydroelectric power 650 $aMethane 650 $aWater reservoirs 650 $aImpacto Ambiental 650 $aMetano 650 $aMudança Climática 650 $aPiscicultura 650 $aReservatório de Água 700 1 $aPACKER, A. P. 700 1 $aSAMPAIO, F. G. 700 1 $aMARANI, L. 700 1 $aMARIANO, E. V. C. 700 1 $aPAZIANOTTO, R. A. A. 700 1 $aFERREIRA, W. J. 700 1 $aALVALÁ, P. C. 773 $tClimatic Change$gv. 150, n. 3-4, p. 150-195, 2018.
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