The species diversity of the aquatic macrophytes present in Asu River located in Akpoha community of Afikpo North Local Government Area of Ebonyi State, South-Eastern part of Nigeria and the physico-chemistry of the river’s water quality was studied. The physico-chemical parameters are major factors when considering the quality of water sample in relation to the presence of macrophytes in the aquatic ecosystem. The mean value of water temperature was 28.95°C. Total Dissolved Solids had a mean value of 35.25 mg/L. Conductivity, the mean value was 80.50µS/cm. The pH value was also recorded; the mean was 7.57. The dissolved oxygen had a mean value of 5.75mg/L. The family with highest species is the Poaceae which had a number of 15 species followed by the seedlings of aquatic weeds with 7 species and then the Cyperaceae with 6 species. The Onagraceae family with a total number of 2 species, and the rest of the families (Amarathaceae, Eraceaa, Azollaceae, Convolulaceae, Nymphaeaceae, Leguminosae, Pontederiaceae and Titiaceae) had 1species each. It was observed that the physico-chemical parameters of Asu River fall under normal range that shows a good water quality supporting the growth of the aquatic macrophytes.
[1]
Meme, F. K., Arimoro, F. O. and Nwadukwe, F. O. (2014) Analyses of Physical and Chemical Parametersin Surface Waters nearby a Cement Factory in North Central, Nigeria. Journal of Environmental Protection5: 826-834.
[2]
Holmes, N. T. H. & Whitton, B. A. (1977). Macrophyte vegetation of the River Swale, Yorkshire. Freshwater Biology 7: 545–558.
[3]
Chambers, P. A., Lacoul, P., Murphy, K, J. and Thomaz, S. M. (2008). Global diversity of aquatic macrophytes in freshwater. Journal of Hydrobiology 595(1): 9-26.
[4]
Agbogidi, O. M., Bamidele, J. E., Ekokotu, P. A. and Olele, N. F. (2000). The role and management of aquatic macrophytes in fisheries and aquaculture. Issues on Animal science 10: 221-235.
[5]
Bianchini, J. I., Cunha-Santino, M. B., Milan, J. A. M., Rodrigues, C. J and Dias, J. H. P. (2010). Growth of Hydrilla verticillata (L.f.) Royle under controlled conditions. Journal of Hydrobiology644:301-312.
[6]
Petre, T. (1990). Fish, fisheries aquatic macrophytes and water quality in inland waters. Water Quality Bulletin12: 103-106.
[7]
Araujo-Lima, C. A., Portugal, L. P. and Ferreira, E. G. (1986). Fish-macrophyte relationship in the Anavihanas Archipelago, a black water system in the Central Amazon. Journal of Fish Biology 29: 1-11.
[8]
Dar, S. H., Kumawat, D. M. Singh, N. and Wani, K. A. (2011). Sewage treatment potential of water hyacinth (Eichhornia crassipes). Research Journal of Environmental Science5: 377-385.
[9]
Anene, A. (2003). Techniques in Hydrobiology. In: Eugene, N. O. and O. O. Julian (Eds.), Research Techniques in Biologicaland Chemical Sciences. Springfield Publishers, pp: 174-189.
[10]
Chowdhury, M. M. R., Shahjahan, M., Rahman, M. S and Islam, M. S. (2008). Duckweed (Lemna minor) as supplementary feed in monoculture of nile tilapia, Oreochromis niloticus. Journal of Fisheries and Aquaculture Science 3: 54-59.
[11]
Ezeri, G. N. O., Gabriel, U. N. and Ashade, O. O. (2003). Effects of partial shading by water lettuce (Pistia stratiotes) on growth of tank cultured Oreochromii niloticus. Journal of Zoology 2: 29-38.
[12]
Lacoul, P and Freedman, B. (2006). Environmental influences on aquatic plants in freshwater ecosystems. Environmental Reviews 14(2):89-136.
[13]
Ndimele, P. E. and Jimoh, A. A. (2011). Water hyacinth (Eichhornia crassipes (Mart.) Solms.) in phytoremediation of heavy metal polluted water of Ologe Lagoon, Lagos, Nigeria. Research Journal of Environmental Science 5:424-433.
[14]
Ghavzan, N. J., Gunale, V. R., Mahajan, D. M. and Shirke, D. R. (2006). Effects of environmental factors on ecology and distribution of aquatic macrophytes. Asian Journal of Plant Science 5: 871-880.
[15]
Petre, T. (1993). Aquatic weeds and fisheries production in developing regions of the world. Journal of Aquatic Plant Management 31:5-10.
