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	Provedor de dados OceanDocs (2) Autor Lyimo, T.J. (2) Hamisi, M.I. (1) Muruke, M.H.S. (1) Op den Camp, H.J.M. (1) Pol, A. (1) Palavra-chave Bacteria (1) Http://aims.fao.org/aos/agrovoc/c_5274 (1) Http://aims.fao.org/aos/agrovoc/c_6751 (1) Http://aims.fao.org/aos/agrovoc/c_7657 (1) Mangroves Sediments Organic matter Methanogenesis Sulphate reduction Redox potential Bacteria Biomass ISW (1) Nutrients (1) Salinity (1) Sea grass (1) Tanzania (1) Temperature (1) Mais... Tipo do documento Journal Contribution (2) Ano 2004 (1) 2002 (1) País Belgium (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Cyanobacterial occurrence and diversity in seagrass meadows in coastal Tanzania OceanDocs Lyimo, T.J.; Hamisi, M.I.; Muruke, M.H.S.. We report on the occurrence and diversity of cyanobacteria in intertidal seagrass meadows at Ocean Road and Mjimwema, Dar es Salaam, Tanzania. Nutrients, temperature and salinity were measured as comparative environmental factors. A total of 19 different cyanobacteria taxa were encountered, out of which eight were found exclusively in Mjimwema, four exclusively in Ocean Road and seven were common to both sites. Oscillatoria, Lyngbya and Spirulina were the dominant cyanobacterial genera. Cyanobacterial coverage was higher in Mjimwema (31–100%) than in Ocean Road (0–60%). The levels of nutrients in tidal pool waters at Ocean Road ranged from 0.45–1.03 ìmol NO3 -N/l, 0.19–0.27 ìmol NO2 -N/l and 0.03–0.09 ìmol PO4 -P/l. At Mjimwema the nutrient concentration... Tipo: Journal Contribution Palavras-chave: Sea grass; Salinity; Temperature; Bacteria; Nutrients; Salinity; Temperature; Http://aims.fao.org/aos/agrovoc/c_5274; Http://aims.fao.org/aos/agrovoc/c_6751; Http://aims.fao.org/aos/agrovoc/c_7657. Ano: 2004 URL: http://hdl.handle.net/1834/1137 Methane Emission, Sulphide Concentration and Redox Potential Profiles in Mtoni Mangrove Sediment, Tanzania OceanDocs Lyimo, T.J.; Pol, A.; Op den Camp, H.J.M.. Mangrove forest sediments were investigated with respect to organic matter content, bacterial numbers, methane emission, sulphide concentration and redox potential profiles. The sediments had characteristically high organic matter content (varying from 8 to 30 % of dry weight) and high bacterial numbers (varying from 5 to 20 x 10<sup>8</sup> cells/g fw). Both values decreased with depth (0-30 cm). Methane emission, sulphide and redox profiles on the other hand, showed remarkable differences between and among sampling sites. In areas with a high abundance of leaf litter and few trees very high sulphide concentrations were encountered: increasing from about I mM at the surface to 25 mM at 30-40 cm depth. Redox values were consistently low; from... Tipo: Journal Contribution Palavras-chave: Mangroves Sediments Organic matter Methanogenesis Sulphate reduction Redox potential Bacteria Biomass ISW; Tanzania. Ano: 2002 URL: http://hdl.handle.net/1834/28 Registros recuperados: 2 Primeira ... 1 ... Última

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