✦ LIBER ✦
Studies on the freshwater algae of the Sudan III, vertical distribution of Melosira granulata (Ehren.) Ralfs. in the White Nile, with reference to certain environmental variables
✍ Scribed by A.G. Abdel Karim; O.M. Saeed
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 276 KB
- Volume
- 57
- Category
- Article
- ISSN
- 1573-5141
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✦ Synopsis
The variations in the number of Melosira granulata in the vertical column of the White Nile was followed for 18 months during the years 1969-71, together with diurnal changes . The monthly as well as the diurnal fluctuations in the levels of certain physical and chemical parameters were simultaneously considered . The counts indicated noticeable progressive decreases from surface to the bottom of the river . Pronounced stratification of the alga was evident during certain months but without apparent correlation with any of the factors analysed .