AASCIT - Journal - All Issues

ISSN Print: 2381-1153 ISSN Online: 2381-1161

American Journal of Environmental Engineering and Science

The Journal

Manuscript Information

Ecological studies on benthic fauna from Alaro Stream in Ibadan

American Journal of Environmental Engineering and Science
Vol.1 , No. 1, Publication Date: Sep. 22, 2014, Page: 13-18

1213 Views Since September 22, 2014, 543 Downloads Since Apr. 14, 2015

Paper in PDF (112K)

Follow on

Authors

[1]	Emmanuel Tyokumbur, Department of Zoology, University of Ibadan, Ibadan, Nigeria.
[2]	Tonye Okorie, Department of Zoology, University of Ibadan, Ibadan, Nigeria.

Abstract

Distribution and abundance of the benthic fauna as indicators of the degree of pollution was studied. The physical hydrological factors like temperature, water current velocity, water width and depth was determined while benthic fauna were collected at the four study sites in Alaro Stream for five weeks between December 2003 and January 2004. The results showed that there was varying diversity in the number of different genera of benthic fauna at the different sites in Alaro Stream during the sampling period. Limnae (87.9%) had the highest number among the benthic fauna while the other benthic fauna encountered included Chironomus (6.5%), Eristalis (4.1%), Rana (0.8%), Corixa (0.5%) and Ambrysus (0.2%). There was recovery through self-purification from the point of effluent discharge as indicated in the increasing biodiversity downstream.

Keywords

Ecological Studies, Benthic Fauna, Stream, Ibadan

Reference

[01]	Odiete, O.W.: Environmental Physiology of Animals and Pollution Diversified Resources Publishers.61-70 (1999).
[02]	Ajayi, S.O., Adelaye, S.A.: Pollution studies on Nigerian rivers I. Bull. Chem Soc. Nigeria. 2, 77-82(1977)
[03]	Mombeshora, C., Osibanjo, O., Ajayi, S.: Pollution studies on Nigerian rivers. Toxic heavy metal status of surface waters in Ibadan city, Environment International. 5, 49-53 (1981).
[04]	Ajao, E.A.: The influence of Domestic and industrial Effluents on the population of sessile and Benthic Organisms in Lagos Lagoon, PhD Thesis, University of Ibadan, Ibadan.1-411 (1990).
[05]	Ogbogu, S.S., Hassan, A.T.: Effects of sewage on Physico-chemical variables and Ephemeroptera (Mayfly) larvae of a stream-reservoir system. Journal of Aquatic Sciences. 11, 43-55 (1986).
[06]	Oben, B.O.: Limnological Assessment of the impact of Agricultural and Domestic Effluents of three man-made Lakes in Ibadan, Nigeria, Ph.D. Thesis, University of Ibadan, Nigeria.(2000).
[07]	Ogbogu, S.S.: Assessment of Water Quality and macroinvertebrates abundance in Opa Stream-Reservoir system, Ile-Ife Global Journal of Pure and Applied Sciences.7, 517-521 (2001).
[08]	Agarwal, S.K.: Pollution Ecology. Hinanshu Publication, Udapur, India.1-222(1991)
[09]	Ademoroti, C.M.A.: Environmental Chemistry and Toxicology. Foludex Press Ltd, Ibadan, Nigeria. 1-215 (1996).
[10]	Ogbeibu, O., Ezeunara, P.U.: Ecological impact of brewery Effluent on the Ikpoba River using the fish community as bio-indicators of pollution, Journal of Aquatic Sciences. 17, 35-44 (2002).
[11]	Ford, J.: The effects of chemical stress on aquatic species composition and community structure. In: Levin, S.A, Harwell, J.R. Kelly and K.D. Kindall (Eds), 1989.
[12]	Boyd, C.E.: Water Quality in Warm Water fish ponds, Craft Master Printer, Inc Opelika, Alabama.25-34(1979)
[13]	Adamson, R.G.: Pollution: An Ecological Approach. T -Best Publishers, Canada. (1979)
[14]	Egborge, A.G.M.: Water Pollution in Nigeria: Biodiversity and Chemistry of Warri River.1-331(1994)
[15]	Ajao, E.A., Fagade, S.O.: A study of sediment communities in Lagos Lagoon, Nigeria. Journal of Oil and Chemical Pollution. 7, 85-105 (1991)
[16]	Philips, D.J.: Quantitative Aquatic Biological Indicators. Applied Science Publishers, London.1-488(1980).
[17]	Obeng, L.: Man's impact on tropical rivers. In: Lock, M.A. and Williams, D.D (Ed), Perspectives in running water biology. Plenum Press, New York. 259-310(1981).
[18]	Winner, R.W., Boesel, M.W., Farrell, M.P.: Insect community structure as an index of Heavy metal pollution in lotic ecosystems. Canadian Journal of Fisheries and Aquatic Science. 37, 647-655(1980)
[19]	Rosenberg, D.M., Danks, H.V., Lemhkuhi, D.M.: Importance of insects in Environmental Impact Assessment. Environmental Management.10, 773-783.
[20]	Dills, G., Rogers, D.T.: Macroinvertebrate community structure as indicators of acid Pollution. Environmental Pollution. 6, 239-262(1974).
[21]	Scrimgeour, C.J.: Effect of bleached Kraft Mill Effluents on macroinvertebrates and fish populations in weed beds in a New Zealand lake. New Zealand Journal of Marine and Freshwater Research. 23,373-379(1989).
[22]	Quinn, J.M., Hickey, C.W.: Effects of sewage waste stabilization lagoon effluents on Stream invertebrates. Journal of Aquatic Ecosystem Health. 2,205-219 (1993).
[23]	Monda, D.P., Galat, D.L., Finger, S.E.: Evaluating ammonia toxicity in sewage effluent to stream macroinvertebrates: A multi-level approach. Archives of Environmental Contamination and Toxicology. 28, 378-384(1995).
[24]	Ort, M.P., Finger, S.E., Jones, J.R.: Toxicity of crude oil to the Mayfly, Hexagenia bilineata (Ephemeroptera: Ephemerida). Environmental Pollution. 90,105-110 (1995).
[25]	Matagi, S.V.: The effect of pollution of benthic macroinvertebrates in a Ugandan Stream. Archives of Hydrobiology.137, 537-549 (1996).
[26]	Odiete, R.A.: The implications of rapid urbanization: some considerations of the Warri example. BSc Essay submitted to University of Ibadan, Geography Department.1-65(1972).
[27]	Miles, P.M., Miles, H.B., Gratiam, V.E.: Tropical freshwater Ecology.1-250(1970)
[28]	Slingsby, D., Cook, C.: Practical Ecology. Cambridge University Press.1- 213 (1986)
[29]	Brinkhurst, R.O.: Organic pollution. In: Pollution: causes, effects and control (Ed), Harrison. R.R. The Royal Society of Chemistry, London. p 103(1990).
[30]	Cole, G.A.: Textbook of Limnology. The C.V. Mosby Company.1-283(1975).
[31]	Pennak, R.W.: Freshwater Invertebrates of the United States. Second Edition, John Wiley and Sons, New York. (1978).
[32]	Hynes, H.B.N.: The Ecology of running waters. University of Toronto Press. (1970).
[33]	Odum, E.P.: Fundamentals of Ecology.W.B.Saunders Ltd, Philadelphia.1- 610(1971).
[34]	Nigerian Environmental Study Action Team (NEST).The perspective in Environmental Management. In: Proceedings of Nigerian Environmental Study Action Team (NEST) from 1991 to 1995.1-169 (1995).