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Ecological studies of three West Algerian rivers: The river Cheliff and its tributary, the river Mina. | ||
| Mesopotamian Journal of Marine Science | ||
| Article 1, Volume 21, Issue 2, 2006, Pages 175-196 PDF (0 K) | ||
| Authors | ||
| K. Benson-Evans; S. Antoine; P. Randerson; M.S. Al-Asadi | ||
| Abstract | ||
| This paper is part of a programme of ecological studies of NW Algeria coast. Monthly samples were taken during 1986-1988 at two sites; Relizan on the river Cheliff, the largest river in Algeria, and Mostaganem, on the River Mina. Water temperatures at River Cheliff were slightly lower than at the river Mina, as the former is more shaded by trees. Current velocity, light intensity, pH electrical conductivity, dissolved oxygen and biological oxygen demand (BOD) was measured. These parameters showed spatial and temporal changes. The two sites were well oxygenated. The pH ranges from 6-2-8.2. Highest current velocity recorded in March, however lowest light intensity coincided with period of high turbidity in January and March. Other ecological parameters including dissolved organic matter (DOM) suspended solids (SS), total residue (TR). Fixed total residue (FTR), volatile matter (VM), chloride content, inorganic nitrogen content and orthophosphate were also considered. Suspended solids negatively correlated with turbidity. Averages TR, FTR and VM were higher at river Cheliff than at river Mina. Correlation coefficients among ecological parameters studied were calculated. | ||
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