Greener Journal of Biological Sciences Vol. 4 (2), pp. 033-038, March 2014.
© 2011 Greener Journals
Manuscript Number: 042313583
Physico-Chemical Analysis of Fish Pond Water in Freshwater Areas of Bayelsa State, Nigeria
*1Keremah R.I., 2Davies O.A. and 3Abezi I.D.
1Department of Fisheries and Livestock Production Technology, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria.
2Department of Fisheries and Aquatic Environment, Rivers State University of Science and Technology, Port Harcourt, Nigeria.
3Fisheries Division, Ministry of Agriculture and Natural Resources, Yenagoa, Bayelsa State, Nigeria.
*Corresponding Author’s Email:regreggie55 @ yahoo. com, Phone: +2348055311660
The study of Physico-chemical parameters in earthen fish ponds in five Local government areas in Bayelsa State, Nigeria was conducted to determine the quality of water for pond fish culture from June to October, 2005. Water samples were collected from the ponds and analyzed using standard laboratory methods and procedures. The results showed variation in the observed parameters at the different sampling stations. Temperature ranged from 24.9+ 0.3oC-25.3+0.30oC, pH 6.24+ 0.02-6.68+0.10 and Ammonia-nitrogen (NH3-N), 0.34+0.20-0.55+0.20mg/l. Dissolved oxygen values were 2.8+0.20-6.6+0.18mg/l, Biological oxygen demand ranged 2.9+0.60-4.52+0.90mg/l and Total alkalinity as 43.1+18.0-93.70+46.53mg/l. Total dissolved solids varied from 27.9+4.7-145.40+91.01mg/l while Total hardness was 19.7+4.1-44.3+15.07mg/l and Turbidity as 20.6+3.2-45.1+15.07ppm. Electrical conductivity was from 117.3+91.01-378.4+130.2µmhos/cm. The values for NH3-N were higher than accepted values for fish culture while those of other parameters favoured good fish production. The observations in this study suggest that pond fish production in some freshwater areas of Bayelsa State in Nigeria could be practiced without adverse effects posed by the quality of water.
Keywords: Physico-chemical parameters, Freshwater, Fish pond, Desirable limit.