Studies and reports in hydrology: II. Methods of computation of the water balance of large lakes and reservoirs. Volume II. Case studies, Edited by H. L. Ferguson and V. A. Znamensky. 73 pp. Paris: Unesco 1984
✍ Scribed by H. Caspeks
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 95 KB
- Volume
- 72
- Category
- Article
- ISSN
- 1434-2944
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✦ Synopsis
Book Reviews 3 r 4 vertebrate fauna. The fish fauna now spans 190 species representing 34 families, of \vhich 70 also occur in the Nile, most of them are also in other major West African rivers. Second in species ahnndance t o the ostarophysans is the endemic family, hlormyridac, distinguished hy their electric organs (Gymnotus niloticua). The ecology of fishes is mainly influenced by the season;tI cycles in flood plain rivers. Fishes may make long migrations between feeding and spawning grounds. ~dOwE-McCONNELL describes the habitats in the Upper and Middle Niger, Volta Lake.
the Kainji barrage, and Lake Chad. I n the section on Onchocerciasis, J. F. RALSH analyses the biology of the migratory SiimZium da,n2nosunt and describes the act>ivities of the OCP (Onchocerciasis Control Programme), which covers an area of over 1,800,000 kmz. D. S. BROWN S: C. A .
WRIGHT describe the life cycle of Schistosomn haematobiunb in freshwater mails of the genera Bulinus and Biomph.yZuriu. Its control has lagged behind t>hat of other parasite diseases.