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| Radwan, A.M.; Khalil, M.K.; El-Moselhy, K.M.. |
| Twelve samples were collected from the surface sediments of lagoon and adjacent Mediterranean Sea. Samples were analyzed for grain size, total organic carbon (TOC), total carbonate (CaCO3), various forms of phosphorus and heavy metals (Fe, Mn, Zn, Cu, Ni, Co, Cd and Pb). The results indicated that the sediments were composed of sand, silt and clay enriched with carbonate (1.95 – 34.1%) and total organic carbon (0.06 and 3.62%). The total-P content ranged between 58 and 1186 μg/g, and the fraction associated with apatite minerals (PHCl) was the dominant (it constitutes about 50 – 73% of TP) implying that it was the main storage of phosphate. The various P phases demonstrated significant positive correlation with mean size, silt, clay, TOC, CaCO3 and TP,... |
| Tipo: Journal Contribution |
Palavras-chave: Field Study; Sediments; Heavy metals; Lagoons; Heavy metals; Http://aims.fao.org/aos/agrovoc/c_2223. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1888 |
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| Radwan, A.M.. |
| This study which was carried out at the different stations and sectors of Lake Burullus during the period from January till December 2000 showed that the identified species of phytoplankton community in Lake Burullus during the period of study included the classes of Bacillariophyceae, Cyanophyceae, Chlorophyceae, Euglenophyceae and Dinophyceae. The total number of species recorded during this period was 65 species. The standing crop and primary production of phytoplankton showed pronounced variations at different stations and months correlated with physicochemical conditions of water especially phosphate , nitrate and silicate contents. Stations 6,10 and 15 were the most productive in the eastern sector ,the middle sector, and the western sector... |
| Tipo: Journal Contribution |
Palavras-chave: Primary production; Phytoplankton; Physico-chemicalconditions Phytoplankton Phytoplankton http://aims.fao.org/aos/agrovoc/c_13344. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1306 |
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