Search Results - "Machiwa, J."

Spatial variation of nutrients and primary productivity in the Rufiji Delta mangroves, Tanzania by Minu, A, Routh, J, Machiwa, JF, Pamba, S

“…Determinations of spatial and temporal variations in organic matter and nutrient dynamics in water and sediments are crucial for understanding changes in…”
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Environmental assessment of mercury contamination from the Rwamagasa artisanal gold mining centre, Geita District, Tanzania by Taylor, H., Appleton, J.D., Lister, R., Smith, B., Chitamweba, D., Mkumbo, O., Machiwa, J.F., Tesha, A.L., Beinhoff, C.

“…This study presents the results of an environmental assessment of mercury (Hg) contamination in the Rwamagasa artisanal gold mining area, northwest Tanzania,…”
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Distribution of heavy metals in sediments of Mwanza Gulf of Lake Victoria, Tanzania by Kishe, M.A., Machiwa, J.F.

“…Sediment samples were analyzed for Cd, Cr, Cu, Pb, Hg and Zn by AAS. The highest concentrations (ppm) for Cu (26.1±4.8), Hg (0.2±0.05), Pb (30.7±5.6) and Zn…”
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Developing human capital for successful implementation of international marine scientific research projects by Morrison, R.J., Zhang, J., Urban, E.R., Hall, J., Ittekkot, V., Avril, B., Hu, L., Hong, G.H., Kidwai, S., Lange, C.B., Lobanov, V., Machiwa, J., San Diego-McGlone, M.L., Oguz, T., Plumley, F.G., Yeemin, T., Zhu, W., Zuo, F.

“…The oceans play a crucial role in the global environment and the sustainability of human populations, because of their involvement in climate regulation and…”
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Nature of suspended particulate matter and concentrations of heavy metals in sediment in the southern part of Lake Victoria, East Africa by Machiwa, JF

“…The concentrations of metals in bottom sediment in the Tanzanian waters of Lake Victoria and the nature of suspended particulate matter (SPM) were analysed…”
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A comprehensive survey on linear programming and energy optimization methods for maximizing lifetime of wireless sensor network by Machiwa, Erick J, Masanja, Verdiana G, Kisangiri, Michael F, Matiko, Joseph W

“…The wireless sensor network (WSN) is considered as a network, encompassing small-embedded devices named sensors that are wirelessly connected to one another…”
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The influence of land-use patterns in the Ruvu river watershed on water quality in the river system by Ngoye, Elizabeth, Machiwa, John F.

“…This work assessed the impacts of land-use patterns in the Ruvu river basin on water quality in the river system. Seasonal changes in water quality parameters…”
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Effect of an impoundment on nutrient dynamics in the Kihansi River, Tanzania by Ideva, RJ, Machiwa, J, Schiemer, F, Hein, T

“…The impact of the Kihansi Dam on electrical conductivity, pH, temperature and dissolved oxygen in the Kihansi River was assessed in 2005 after 85% of the…”
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An empirical model of the fate of organic carbon in a mangrove forest partly affected by anthropogenic activity by Machiwa, John F., Hallberg, Rolf O.

“…A model of biogeochemical and hydrological processes that drive organic carbon dynamics of a mangrove ecosystem has been developed. Tidal regime parameters as…”
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Distribution and Remineralization of Organic Carbon in Sediments of a Mangrove Stand Partly Contaminated with Sewage Waste by Machiwa, J F

“…The distribution of soil organic carbon in a mangrove forest partly contaminated with raw sewage shows that a high proportion of the carbon in the landward…”
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Assessment of Heavy Metal Pollution in Sediment and Polychaete Worms from the Mzinga Creek and Ras Dege Mangrove Ecosystems, Dar es Salaam, Tanzania by Mtanga, A, Machiwa, J

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Flora and crabs in a mangrove forest partly distorted by human activities, Zanzibar by John F. Machiwa, Hallberg, Rolf O.

“…A preliminary study on flora and fauna in a disturbed mangrove ecosystem is presented. The zonation of mangrove flora in the forest is clearly displayed by two…”
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Assessment of Heavy Metal Pollution in Sediment and Polychaete Worms from the Mzinga Creek and Ras Dege Mangrove Ecosystems, Dar es Salaam, Tanzania by Mtanga, A, Machiwa, J

“…Metal pollution in the Mzinga creek mangrove stand was assessed and compared with a relatively pristine mangrove forest at Ras Dege in Dar es Salaam. The…”
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Heavy metal pollution levels in water and oysters, Saccostrea cucullata, from Mzinga Creek and Ras Dege mangrove ecosystems, Tanzania by Mtanga, Augustina, Machiwa, John F

“…Heavy metal (cadmium, chromium, copper, mercury, lead and zinc) concentrations in mangrove forests were investigated in water, suspended particulate matter…”
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Developing human capital for successful implementation of international marine scientific research projects by MORRISON, R. J, ZHANG, J, LOBANOV, V, MACHIWA, J, SAN DIEGO-MCGLONE, M. L, OGUZ, T, PLUMLEY, F. G, YEEMIN, T, ZHU, W, ZUO, F, URBAN, E. R, HALL, J, ITTEKKOT, V, AVRIL, B, HU, L, HONG, G. H, KIDWAI, S, LANGE, C. B

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Metals in Nile Perch (Lates niloticus) and Suspended Particulate Matter From Lake Victoria, Tanzania by MACHIWA, JOHN F.

“…A study was conducted to assess the levels of pollutant metals in suspended particulate matter and Nile perch from Lake Victoria. The metals in particulate…”
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