Abstract
Ogelube is a tropical oligotrophic lake having a desmid dominated phytoplankton with maximum density during the warmest season. During the rainy season, the lake cools, phytoplankton declines and dominance shifts to algae other than desmids. The lake cools further as harmattan advances, while phytoplankton reaches its minimum, suggesting water temperature to be more important than other environmental conditions. Decrease in phytoplankton density with falling water temperature was probably due to slower reproduction, rather than to increased death rate.
References
Biswas, S., 1970. Changes in the phytoplankton of the developing Volta Lake. Ghana J. Sci. 10: 85–92.
Biswas, S., 1972. Correlation between dissolved oxygen and phytoplankton in the lower reaches of Volta Lake, Ghana. Verh. int. Ver. Limnol. 18: 622–627.
Biswas, S., 1978. Observations on phytoplankton and primary productivity in Volta Lake, Ghana. Verh. int. Ver. Limnol. 20: 1672–1676.
Biswas, S., 1982. Notes on the phytoplankton of the Lake Bangweulu area (1972–1974). Cercle Hydrobiol. de Bruxelles 4: 1–17.
Biswas, S., 1984. Phytoplankton of Opi Lake, Anambra State, Nigeria. Verh. int. Ver. Limnol. 22: 1180–1184.
Biswas, S. & N. O. Nweze, 1990. Phytoplankton of Ogelube Lake, Opi, Anambra State, Nigeria. Hydrobiologia 199: 81–86.
Canter, H. M. & J. W. G. Lund, 1966. The periodicity of planktonic desmids in Windermere, England. Verh. int. Ver. Limnol. 16: 163–172.
Evurunobi, N. O., 1984. The phytoplankton and some physicochemical aspects of Ogelube Lake, Nigeria during May 1981–May 1982. M. Sc. Thesis, University of Nigeria, Nsukka.
Gerrath, J. F. & D. M. John 1988. The desmids of Ghana, West Africa I. Nova Hedwigia 46: 187–230.
Hare, L. & J. C. H. Carter, 1984. Diel and seasonal physicochemical fluctuations in a small natural West African Lake. Freshwat. Biol. 14: 597–610.
Hare, L. & J. C. H. Carter, 1986. The benthos of a natural West African lake, with emphasis on the diel migration and lunar and seasonal periodicities of the Chaoborus populations (Diptera, Chaoboridae). Freshwat. Biol. 16: 759–780.
Howard-Williams, C. & G. G. Ganf, 1981. Shallow waters. The ecology and utilization of African inland waters, J. J. Symoens, M. Burgis & J. J. Gaudet, U. N. E. P. (eds), Nairobi. 1: 103–113.
Lewis Jr., W. M., 1986. Phytoplankton succession in lake Valencia, Venezuela. In M. Munawar & J. F. Tailing (eds), Seasonality of Freshwater Phytoplankton. Developments in Hydrobiology. Dr W. Junk Publishers, Dordrecht: 189–203. Reprinted from Hydrobiologia 138.
Lund, J. W. G., 1973. Phytoplankton as indicators of change in lakes. Envir. Change 2: 273–281.
Nweze, N. O., 1991. Phytoplankton production in relation to physico-chemical status in Ogelube Lake, Opi Anambra State. Ph.D. Thesis, University of Nigeria, Nsukka.
Reynolds, C. S., 1986. Experimental manipulation of the phytoplankton periodicity in large limnetic enclosures in Blelham Tarn, English Lake district. In M. Munawar & J. F. Tailing (eds), Seasonality of Freshwater Phytoplankton. Developments in Hydrobiology. Dr W. Junk Publishers, Dordrecht: 43–64. Reprinted from Hydrobiologia 138.
Talling, J. F., 1986. The seasonality of phytoplankton in African lakes. In M. Munawar & J. F. Talling (eds), Seasonality of Freshwater Phytoplankton. Developments in Hydrobiology. Dr W. Junk Publishers, Dordrecht: 139–160. Reprinted from Hydrobiologia 138.
Zafar, A. R., 1986. Seasonality of phytoplankton in some south Indian lakes. In M. Munawar & J. F. Talling (eds), Seasonality of Freshwater Phytoplankton. Developments in Hydrobiology. Dr W. Junk Publishers, Dordrecht: 177–187. Reprinted from Hydrobiologia 138.
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Biswas, S. Phytoplankton periodicity in Ogelube Lake, Anambra State, Nigeria during 1979–1980. Hydrobiologia 246, 169–172 (1992). https://doi.org/10.1007/BF00014704
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DOI: https://doi.org/10.1007/BF00014704