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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
19/12/2017 |
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Data da última atualização: |
02/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA FILHO, E. C. de; BRITO, D. Q.; DIAS, Z. M. B.; GUARIEIRO, M.; CARVALHO, E. L.; FASCINELI, M. L.; NIVA, C. C.; GRISOLIA, C. K. |
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Afiliação: |
EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC; DARLAN Q. BRITO, UNIVERSIDADE DE BRASÍLIA; ZELIA M.B. DIAS, UNIVERSIDADE DE BRASÍLIA; MAYARA S. GUARIEIRO, CENTRO UNIVERSITÁRIO DE BRASÍLIA; ESTHER L. CARVALHO, UNIVERSIDADE DE BRASÍLIA; MARIA L. FASCINELI, UNIVERSIDADE DE BRASÍLIA; CINTIA CARLA NIVA, CPAC; CESAR K. GRISOLIA, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Effects of ashes from a Brazilian savanna wildfire on water, soil and biota: an ecotoxicological approach. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Science of the Total Environment, n. 618, p. 101-111, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Wildfire is very common in Brazilian savannas, and its effects on water, soil and aquatic/soil organisms are poorly understood. In this study, we observed the effects of fire, especially of ashes, on surface soil and subsurface water in a typical Brazilian savanna (Cerrado sensu strictu) for one year. Soil analyses (pH, organic matter content, potential acidity, K, Ca, Mg and P) and subsurface water analyses (NO3 −, PO43ˉ Mg2+, Ca2+ and K+) were assessed. We evaluated the ecotoxicological effects of ashes on three different endpoints and species, in fish Danio rerio (embryonic development), aquatic snail Biomphalaria glabrata (reproduction) and a soil species Enchytraeus sp. (reproduction). We found a higher amount of exchangeable cations and organic matter content in short-term fire effects on soil, but the higher availability of nutrients did not affect the soil pH in field plots. The effects of ashes on soil and subsurface water did not persist for one-year post-fire, except for organic matter content in burned areas. No toxic effects were observed on hatching success and incidences of developmental abnormalities in D. rerio embryos. However, ash input had adverse effects on reproduction in snails and enchytraeids. We reported a statistically significant decrease in snail eggs exposed to the 50 g.L− 1 and 100 g.L− 1 of ashes after four weeks (p < 0.05, Dunnett's test and Tukey test). Enchytraeus sp. reproduction was negatively influenced by the natural soil, which presents high acidity, and also when exposed directly to the ashes from burned area, suggesting that pH and other ash compounds may limit the growth of enchytraeids. More studies in burned areas are strongly encouraged, addressing the potential important routes of exposure to ashes in order to understand the impact of intense fires on soil and aquatic biota in tropical savannas. MenosWildfire is very common in Brazilian savannas, and its effects on water, soil and aquatic/soil organisms are poorly understood. In this study, we observed the effects of fire, especially of ashes, on surface soil and subsurface water in a typical Brazilian savanna (Cerrado sensu strictu) for one year. Soil analyses (pH, organic matter content, potential acidity, K, Ca, Mg and P) and subsurface water analyses (NO3 −, PO43ˉ Mg2+, Ca2+ and K+) were assessed. We evaluated the ecotoxicological effects of ashes on three different endpoints and species, in fish Danio rerio (embryonic development), aquatic snail Biomphalaria glabrata (reproduction) and a soil species Enchytraeus sp. (reproduction). We found a higher amount of exchangeable cations and organic matter content in short-term fire effects on soil, but the higher availability of nutrients did not affect the soil pH in field plots. The effects of ashes on soil and subsurface water did not persist for one-year post-fire, except for organic matter content in burned areas. No toxic effects were observed on hatching success and incidences of developmental abnormalities in D. rerio embryos. However, ash input had adverse effects on reproduction in snails and enchytraeids. We reported a statistically significant decrease in snail eggs exposed to the 50 g.L− 1 and 100 g.L− 1 of ashes after four weeks (p < 0.05, Dunnett's test and Tukey test). Enchytraeus sp. reproduction was negatively influenced by the natural soil, which present... Mostrar Tudo |
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Thesagro: |
Cerrado; Fogo; Queimada; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02588naa a2200253 a 4500
001 2082905
005 2024-05-02
008 2018 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA FILHO, E. C. de
245 $aEffects of ashes from a Brazilian savanna wildfire on water, soil and biota$ban ecotoxicological approach.
260 $c2018
520 $aWildfire is very common in Brazilian savannas, and its effects on water, soil and aquatic/soil organisms are poorly understood. In this study, we observed the effects of fire, especially of ashes, on surface soil and subsurface water in a typical Brazilian savanna (Cerrado sensu strictu) for one year. Soil analyses (pH, organic matter content, potential acidity, K, Ca, Mg and P) and subsurface water analyses (NO3 −, PO43ˉ Mg2+, Ca2+ and K+) were assessed. We evaluated the ecotoxicological effects of ashes on three different endpoints and species, in fish Danio rerio (embryonic development), aquatic snail Biomphalaria glabrata (reproduction) and a soil species Enchytraeus sp. (reproduction). We found a higher amount of exchangeable cations and organic matter content in short-term fire effects on soil, but the higher availability of nutrients did not affect the soil pH in field plots. The effects of ashes on soil and subsurface water did not persist for one-year post-fire, except for organic matter content in burned areas. No toxic effects were observed on hatching success and incidences of developmental abnormalities in D. rerio embryos. However, ash input had adverse effects on reproduction in snails and enchytraeids. We reported a statistically significant decrease in snail eggs exposed to the 50 g.L− 1 and 100 g.L− 1 of ashes after four weeks (p < 0.05, Dunnett's test and Tukey test). Enchytraeus sp. reproduction was negatively influenced by the natural soil, which presents high acidity, and also when exposed directly to the ashes from burned area, suggesting that pH and other ash compounds may limit the growth of enchytraeids. More studies in burned areas are strongly encouraged, addressing the potential important routes of exposure to ashes in order to understand the impact of intense fires on soil and aquatic biota in tropical savannas.
650 $aCerrado
650 $aFogo
650 $aQueimada
650 $aSolo
700 1 $aBRITO, D. Q.
700 1 $aDIAS, Z. M. B.
700 1 $aGUARIEIRO, M.
700 1 $aCARVALHO, E. L.
700 1 $aFASCINELI, M. L.
700 1 $aNIVA, C. C.
700 1 $aGRISOLIA, C. K.
773 $tScience of the Total Environment$gn. 618, p. 101-111, 2018.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
22/04/2014 |
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Data da última atualização: |
21/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
LIMA, J. de F.; GARCIA, J. da S.; SILVA, T. C. da. |
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Afiliação: |
JO DE FARIAS LIMA, CPAF-AP; JAMILE DA SILVA GARCIA, UNIVERSIDADE DO ESTADO DO AMAPÁ; THIBÉRIO CARVALHO DA SILVA, UNIVERSIDADE ESTADUAL DO OESTE DO PARANÁ. |
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Título: |
Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Acta Amazonica, Manaus, v. 44, n. 2, p. 235-244, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species. The aim of this study was the identification of the diet items of M. carcinus based on the analysis of the stomach contents. Specimens were collected in the Amazon River estuary between January 2009 and January 2010. The stomach analysis was carried out by using the frequency of occurrence (FO), methods of points (MP) and feeding index (FI). It was observed that prawns fed on detritus, animals and plant fragments as the most important food items. Sediment accounted for the main stomach content, accounting for 43.2% by the MP, 44.9% by FI and 100% by the FO. Sexual differences in feeding preferences were not found in this study, and seasonal differences in the frequency of items ingested by M. carcinus were not observed. The results indicated that M. carcinus can be considered omnivorous species, but with an important carnivorous component, similar to that found in other Macrobrachium species. |
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Palavras-Chave: |
Food; Ingestão de areia; Morfologia do estomago; Palaemonid; Pitu; Sand ingestion; Stomach morphology. |
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Thesagro: |
Alimento; Camarão pitu; Crustáceo. |
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Thesaurus NAL: |
shrimp. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/101294/1/CPAF-AP-2014-Natural-diet-and-feeding.pdf
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Marc: |
LEADER 01929naa a2200277 a 4500
001 1984882
005 2022-11-21
008 2014 bl uuuu u00u1 u #d
100 1 $aLIMA, J. de F.
245 $aNatural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus$bCrustacea, Decapoda) in the estuary of the Amazon River.$h[electronic resource]
260 $c2014
520 $aMacrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species. The aim of this study was the identification of the diet items of M. carcinus based on the analysis of the stomach contents. Specimens were collected in the Amazon River estuary between January 2009 and January 2010. The stomach analysis was carried out by using the frequency of occurrence (FO), methods of points (MP) and feeding index (FI). It was observed that prawns fed on detritus, animals and plant fragments as the most important food items. Sediment accounted for the main stomach content, accounting for 43.2% by the MP, 44.9% by FI and 100% by the FO. Sexual differences in feeding preferences were not found in this study, and seasonal differences in the frequency of items ingested by M. carcinus were not observed. The results indicated that M. carcinus can be considered omnivorous species, but with an important carnivorous component, similar to that found in other Macrobrachium species.
650 $ashrimp
650 $aAlimento
650 $aCamarão pitu
650 $aCrustáceo
653 $aFood
653 $aIngestão de areia
653 $aMorfologia do estomago
653 $aPalaemonid
653 $aPitu
653 $aSand ingestion
653 $aStomach morphology
700 1 $aGARCIA, J. da S.
700 1 $aSILVA, T. C. da
773 $tActa Amazonica, Manaus$gv. 44, n. 2, p. 235-244, 2014.
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Registro original: |
Embrapa Amapá (CPAF-AP) |
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