Effects of Environmental Variables on Some Aquatic Biota of Jabi Lake, Federal Capital Territory, Abuja
DOI:
https://doi.org/10.55677/ijlsar/V03I3Y2024-08Keywords:
Aquatic biota, environmental variable, confluent.Abstract
The presence of environmental variables above regulatory permissible limit especially, high levels of toxic substances and heavy metals in freshwater bodies represents a global public health issue. Aquatic ecosystems are critical components of the global environment and essential contributors to biodiversity and ecological productivity. The effects of environmental variables on some aquatic biota of Jabi Lake was studied from January, 2022 to December, 2023 using a combination of insitu and laboratory analyses. Seven stations were selected; the tributaries (3 stations), the confluent station and 3 stations within the Lake, to determine the physico-chemical, nutrients and biological characteristics based on the activities in and around the various stations. Physico-Chemical parameters measured were: Atmospheric temperature, Water temperature, pH, Dissolved Oxygen (DO), Turbidity, Water Electrical Conductivity (WEC), Water current, Biological Oxygen Demand (BOD), Total Dissolved Solid (TDS), Alkalinity, Chemical Oxygen Demand (COD) and Nitrite. Nutrients: Phosphate and Nitrate. Metals: Copper (Cu), Iron (Fe), Lead (Pb), Zinc, Chromium and Cadmium. Some of the parameters were within the regulatory permissible limit while few above the standard. There were significant differences (P<0.05) between these parameters, within the months, stations and seasons. The result of biotic fauna recorded shows composition and abundance of 4 phyla, 9 classes, 25 families and 45 species. Temperature has the most pronounced effect on the distribution and abundance of aquatic fauna, followed by DO in the CCA analysis. The Shannon Weiner species diversity index is 1.14. Pearson correlation ®between fauna family and hydro-chemical parameters shows that phosphate was significant at P< 0.05 followed by COD, EC and BOD.
References
Al-bahry S, Mahmoud IY. Microbial and chemical pollution of water-wells relative to sewage effluents in Oman. 2014; (January).
Balogun, J.K. and Auta, J. (2001). Fisheries resources and Development potentials of Lake Kangimi, Kaduna State. Nigeria Journal of Biological Sciences 1: 50 56.
Bamgbose, O.O. and Arowolo, T.A. (2007). Water Quality Assessment of Ogun River, South West Nigeria. Environmental Monitoring Assess, Springer Business Mediapp. 473- 478.
Banyigyi, H.A., Auta, J., Oniye, S.J., Balogun, J.K., and Umaru J., (2016). Study on Fish Diversity of Doma Reservoir, Nasarawa State, Nigeria. Journal of Tropical Biosciences. ISSN: 0795-3089. Vol. 11:43-50.
Brook, B. W., N. S. Sodhi, and C. J. A. Bradshaw. 2008. Synergies among extinction drivers under global change. Trends in Ecology & Evolution 23:453-460.
Carrizo, S.F., Smith, K.G. and Darwall, W.R.T. (2013). Progress towards a global assessment of the status of freshwater fishes (Pisces) for the IUCN Red List: application to conservation programmes in zoos and aquariums. International Zoo Yearbook, 47, 46–64.
Dan-Kishiya, A. S., Olatunde, A. A. and Balogun J. K. (2013). Ichthyofauna composition and diversity of Lower Usman Researvoir in Bwari, Abuja, Nigeria. American Journal of Research Communication, 1(9): 188-203.
Edward, J. B. (2013). Evaluation of the fisheries potentials of Egbe Reservoir, Ekiti State, Nigeria. Greener Journal of Biological Sciences, 3(7): 260-276.
Idowu, R.T., (2004). The Physico-Chemical parameters of an African Arid Zone Man-made Lake. In: J. Animal Research International (2004) 1 (2): 113-119.
Ipinmoroti, M.O. (2013): Ichthyofauna diversity of Lake Asejire: Ecological implications. International Journal of Fisheries and Aquaculture, 5(10): 248-252.
Ita E.O., (1993). Inland Fisheries Resources of Nigeria. FAO, CIFA Occasional Paper No. 20, Rome, Italy, FAO, pp120.
Komolafe, O. O. and Arawamo, G. A. O. (2011). Length-weight relationships of nine fish species from Ologe Lagoon, Lagos, Nigeria. African Journal of Biotechnology, 10(2): 241-243.
Makpo, J. K., Ameh, S. M. and Olatunji M. A., (2020). Studies on some Physico-chemical Parameters and Relative Abundance of Zooplanktons of Antau River, Nasarawa State. Fuw Trends in Science & Technology Journal, Vol. 5 No. 2 pp. 625 – 629.
Meisch, C. (2000). Freshwater Ostracoda of western and central Europe. SpektrumAkademischerVerlag, Herdelberg, Berlin: 522 pp. Molecular Phylogenetics and Evolution 54:542–552.
Mezquita, F. A. Sanz-Brau and M.R. Miracle (1996): New data on freshwater assemblages (Crustacea, Ostracoda) from Cuenca (Central Spain). Bulletin de la Societe des Naturalistesluxembourgeois 97: 239-247.
Natural Resources Conservation Council of Nigeria (NARESCON, 1992). Natural resources conservation plan. Final report, 1: 114.
Offem, B. O., Ayotunde, E. O., Ikpi, G. U., Ochang, S. N. and F. B. Ada (2011). Influence of seasons on water quality, abundance of fish and plankton species of Ikwori Lake, South-Eastern Nigeria. Fisheries and Aquaculture Journal, 2011, 18pp.
USEPA, Environmental Protection Agency (2010). Drinking water contaminants, US EPA. Water.epa.gov. 21p.
World Health Organization. Water Services for Health. 2019.
