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Veuillez utiliser cette adresse pour citer ce document :
http://hdl.handle.net/1834/1177
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| Titre: | Some limnological characteristics of the lower Sondu-Miriu River, Kenya |
| Auteur(s): | Mwashote, B.M.
Shimbira, W. |
| mot-clé ASFA: | Absorption spectra
Physical oceanography
Phytoplankton
Population density
Species diversity
Turbidity |
| Date de publication: | 1994 |
| Editeur: | ICIPE Science Press |
| Référence bibliographique: | Okemwa, E.; Wakwabi, E.O.; Getabu, A. (Ed.) Proceedings of the Second EEC Regional Seminar on Recent Trends of Research on Lake Victoria Fisheries, Nairobi : ICIPE Science Press, p. 15-27 |
| Résumé: | Chemical and physical investigations of water on a 10 km section of
the Sondu-Miriu river in Kenya were conducted in 1988-1990. They
revealed no significant spatial variation between three sampling
stations. Variation existed between the waters of a floodpool and the
river. Flooding had a general diluting effect on the nutrients. All
the physical and chemical parameters investigated were within
tolerable limits of water quality according to WHO criteria for
drinking water, fisheries and other aquatic life. A total of 22
phytoplankton and 9 zooplankton genera were recorded. The algae
Microcystis (cyanobacteria) and Navicula (diatom) were dominant. Mean
densities were 283 cells or colonies per ml for phytoplankters and 10
organisms per ml for zooplankton. 60% of the zooplankton genera
observed were found in the floodpool. Community diversity and density
were found to vary between sampling stations as well as seasons.
Variations in turbidity, nutrient availability and rate of water flow
were major determinants for plankton occurrence. |
| URI/URL: | http://hdl.handle.net/1834/1177 |
| ISBN: | 9290640789 |
| Collection(s) : | Conference Papers
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