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vol-7SOME ASPECTS 0″ THE HYDROGRAPHY, PHYSICO-CHEMICAL
CHARACTERISTICS AND FI HERIES OF LAKE MA rZALA
ABSTR
S me chemical characteristics of lake Manzala water as derived from three different source. arc traced. Variable features or the
waters in the South-eastern, North-ea tern. Westem and the navigational route are identified and helped to consider them as belonging to modified water types in the corresponding regions. ThIS
variations of chlorosity, inorganic phosphate and reactive silicate
are highly significant. Clear relation is observed between the prog·
re sivc dilution by the drain waters and the concentration of nutrient salts in the lake water. The productivity of the lake is shown
to attain high magnitude.
