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	Provedor de dados BABT (1) BJB (1) Autor Esteves,Franscisco de Assis (1) Fonseca,André Luiz dos Santos (1) Marinho,Claudio Cardoso (1) PAGIORO,T. A. (1) THOMAZ,S. M. (1) Palavra-chave Eichhornia azurea (2) Decomposition (1) Eutrophication (1) Floodplain (1) Global warming (1) Methane (1) Paraná river (1) Salvinia auriculata. (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 1998 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Floating Aquatic Macrophytes Decrease the Methane Concentration in the Water Column of a Tropical Coastal Lagoon: Implications for Methane Oxidation and Emission BABT Fonseca,André Luiz dos Santos; Marinho,Claudio Cardoso; Esteves,Franscisco de Assis. ABSTRACT In wetlands, the knowledge accumulated on the role of aquatic plants in the methane cycle focused on emergent macrophytes, to the detriment of other typologies. Herein, we evaluated whether the free-floating macrophyte Salvinia auriculata Aubl. and the floating-leaved macrophyte Eichhornia azurea (Sw.) Kunth. decrease the water column methane concentrations compared to a plant-free surface. We prepared microcosms by inserting an individual of S. auriculata or of E. azurea into chambers filled with lagoon water previously bubbled with CH4. Another set of chambers was incubated only with the prepared water, representing the plant-free surface. Half of the chambers were kept in the dark and half in sunlight to simulate a diel cycle. We observed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Methane; Eutrophication; Global warming; Eichhornia azurea; Salvinia auriculata.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100702 Loss of weight and concentration of carbon, nitrogen, and phosphorus during decomposition of Eichhornia azurea in the floodplain of the upper Paraná river, Brazil BJB PAGIORO,T. A.; THOMAZ,S. M.. Leaf packs of the aquatic macrophyte Eichhornia azurea were used to experimentally evaluate changes in mass, carbon, nitrogen, and phosphorus concentrations, and C:N ratios during initial stages of decomposition in two different environments, the Paraná River and Garças Lake. Analysis of weight loss showed relatively slow decomposition rates in both environments (0.0047 d-1 and 0.0048 d-1 respectively). Over a 45-day period we observed significant changes (p < 0.05) in concentrations of carbon, nitrogen, and phosphorus, but only carbon differed between the environments (F = 10.479; p = 0.03). Therefore we concluded that detritus behaved similarly during decomposition, since intrinsic characteristics of the environments affected only the carbon... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eichhornia azurea; Decomposition; Floodplain; Paraná river. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000400007 Registros recuperados: 2 Primeira ... 1 ... Última

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