keywords: Drainage canal, physico-chemical parameters, P. reticulata
The physico-chemical parameters of the drainage canal systems were monitored. The air temperature ranged from 23.0 to 32.0oC (mean: 28.4 ± 2.63oC). The surface water temperature ranged from 21.0 to 31.0oC (mean: 26.8 ± 1.97oC). The hydrogen ion concentration (pH) ranged from 5.35 to 7.20. The dissolved oxygen value ranged from 2.10 to 4.80 mg/l (mean: 3.85 ± 0.54 mg/l) while electrical conductivity value ranged from 0.15 to 1.90 Scm-1 (mean: 0.68 ± 0.37 Scm-1). Total dissolved solid ranged from 0.08 to 1.00 mg/l (mean: 0.34 ± 0.19 mg/l). The air temperature positively correlated with conductivity and total dissolved solids (r = 0.29). Similarly, water temperature positively correlated with conductivity and total dissolved solids (r = 0.24, 0.25, respectively). Also, dissolved oxygen positively correlated with conductivity and total dissolved solids (r = 0.22, 0.21 respectively). The abundance of Poecilia reticulata positively correlated with total dissolved solids and conductivity (0.23 and 0.24, respectively) while it negatively correlated with pH and dissolved oxygen (-0.12 and -0.16, respectively). Though, these paired values were insignificantly correlated (P > 0.05), the values fell within the standard range for sustainable fish production.
Akpata TVI & Ekundayo JA 1978. Feacal pollution of the Lagos Lagoon. Nigerian J. Sci., 12: 39 – 53. Awachie JB 1981. Running water ecology in Africa. In: Lock, M.A. and Williams, D.D. (Eds.). Perspectives in running water ecology. Plenum Press, New York and London. Pp 339 – 366. Boyd CE 1979. Water Quality in Warm Water Fish Ponds. Agriculture Experimental Station Auburn University Publication, Alabama. 359pp. Chapman LJ & Kramer DL 1991. The consequences of flooding for the dispersal and fate of poeciliid fish in an intermittent tropical stream. Oecologia, 37: 299 – 306. Croft DP, Krause J & Jame R 2004. Social networks in the guppy (Poecilia reticulata). Proceedings of the Royal Society of London Biology Letters, 271: 516 – 519. Dunsin BA, Edokpayi CA & Lawal MO 2012. Environmental conditions of a drainage channel inhabited by an invasive species Melanoides tuberculatus (Muller, 1774) in southwestern, Nigeria. Int. J. Aquatic Sci., 3(1): 58-70. Edokpayi CA & Ayorinde AO 2005. Physical, Chemical and Macrobenthc Invertebrate Fauna Characteristics of Swampy Water Bodies within University of Lagos, Nigeria. West African J. Appl. Ecol., 8: 129-139. Edokpayi CA 2005. Variation of chemical constituents of a brackish water prawn habitat in southern Nigeria. J. Life and Physical Sci., Acta SATECH, 2(1): 11-18. Edokpayi CA & Osimen CE 2002. The impact of impoundment on the physical and chemical hydrology of Ibiekuma stream in southern Nigeria. Trop. Ecol., 43(2): 287-296. Edokpayi CA, Lawal MO, Okwok NA & Ogunwenmo CA 2004. Physico-chemical and macrobenthic faunal characteristics of Kuramo Water, Lagos, southern Nigeria. AfricanJ. Aquatic Sci.,29(2): 235-241. Egborge ABM 1979. Observations on the diurnal of Lake Asejire – A new impoundment in Nigeria. Polskie Archiwum Hydrobiol.,26(3): 310 – 311. Fish Base 2006. Poecilia reticulatahttp://filaman.ifm-geomar.de/summary/ speciesSummary id=3228 (Accessed 2 March, 2006. Gupta SK & Gupta RC 2006.General and Applied Ichthyology (Fish and Fisheries) S. Chand and Campany Ltd. Ram Niger, New Delhi, p. 1130. Hay CJ, Van Zyl BJ, van der Bank FH, Ferreira JT & Steyn GJ 1999. The distribution of freshwater fish in Namibia. Cimbebasia, 15: 41 – 63. Idowu EO, Ugwumba AAA, Edward JB & Oso JA 2013. Study of the Seasonal Variation in the Physico-Chemical Parameters of a Tropical Reservoir. Greener J. PhysicalSci., 3(4): 142-148. Jacoby JM, Bouchard DD & Patmont CR 1991. Response of periphyton to nutrient enrichment in Lake Chelan, WA. Lake and Reservoir Mgt., 7: 33-43. Kenny, J.S. 1995. Views from the bridge: a memoir on the fresh water fishes of Trinidad. Julian S. Kenny, Maracas, St. Joseph, Trinidad and Tobago, p. 98. Lawal MO, Edokpayi CA & Osibona AO 2012. Food and Feeding Habits of the Guppy, Poecilia reticulata from Drainage Canal Systems in Lagos, Southwestern Nigeria. West African J. Appl. Ecol., 20(2): 1 – 9. Nwankwo DI 1998. The influence of sawmill wood wastes on Diatom population of Okobaba, Lagos, Nigeria. Nigerian J. Botany, 11: 15 – 24. Nwankwo DI, Onyema IC, Labiran CO, Otuorumo AO, Onadipe EI, Ebulu MO & Emubaiye N 2004. Notes on the Observations of Brown Water Discolouration off the Light House Beach, Lagos, Nigeria. Discovery and Innovation, 16(3/4): 111-116. Ogbeibu AE 2005. Biostatistics-A practical Approach to Research and Data Handling. Mindex Press, Ugbowu, Benin City. 264pp. Ogbeibu AE 2001. Distribution, Density, and Diversity of Dipterans in a temporary pond in Okomu forest reserve, Southern Nigeria. J. Aquatic Sci., 16: 34 -52. Onyema IC & Nwankwo DI 2006. The Epipelic Assemblage of a Polluted Estuarine Creek in Lagos,Nigeria. PollutionRes., 25 (3): 459 – 468. Rodriguez CM 1997. Phylogenetic analysis of the tribe Poeciliini (Cyprinodontiformes: Poeciliidae). Copeia, 4: 663 – 679. Shikano T & Fujio Y 1997. Successful propagation in seawater of the guppy Poecilia reticulata with reference to high salinity tolerance at birth. Fisheries Sci., 63: 573 – 575. Skelton PH 1993. A complete Guide to the Freshwater Fishes of Southern Africa. Southern Book Publishers, 388pp. Uwadiae RE, Edokpayi CA, Adegbite O & Abimbola O 2009. Impact of sediment characteristics on the Macrobenthic invertebrates community of a perturbed tropical lagoon. Ecol., Env. Conserv., 15 (3): 441 -448. Welcomme RL 1979. Fisheries Ecology of flood plains Rivers. Longman, London. 317pp. Welcomme RL 1988. International Introductions of inland aquatic species. Food and Agriculture Organisation. Fish. Technical. Paper 294, 318pp. DOI: http://dx.doi.org/.