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Vol.2 , No. 4, Publication Date: Jul. 22, 2015, Page: 33-36
 using mathematical and statistical analysis. Overall mean condition factor (K) value for T. zilli was 2.1. The highest K and lowest K values were 5.0 and 0.2 respectively. Overall mean K value for O. niloticus was 1.9 with highest and lowest K values as 4.5 and 0.2 respectively. Overall mean K value of O. aureus was 2.0. Highest K value was 4.8 while lowest K value obtained was 0.8. Overall mean K value for O. mossabicus was 1.9. Highest K value was 4.6 while lowest K value obtained was 0.5. The mean K values recorded for males from the four species were higher than the females indicating that males were in a better state of wellbeing than the females. From the result, the general observation of the condition of the fishes was the sampled fishes were in good condition and sustainable management should not be neglected.&picture=http://www.aascit.org/aascit/decorators/img/journal/903.jpg)
| [1] | Uneke Bilikis Iyabo, Dept. of Applied Biology, Faculty of Biological Sciences, Ebonyi State University, Abakaliki, Ebonyi State, Nigeria. |
Study on the condition factor for four species of Tilapia, Tilapia zilli, Oreochromis niloticus, Oreochromis mossabicus and Oreochromis aureus from Ebonyi River was conducted between (January - June, 2011) using mathematical and statistical analysis. Overall mean condition factor (K) value for T. zilli was 2.1. The highest K and lowest K values were 5.0 and 0.2 respectively. Overall mean K value for O. niloticus was 1.9 with highest and lowest K values as 4.5 and 0.2 respectively. Overall mean K value of O. aureus was 2.0. Highest K value was 4.8 while lowest K value obtained was 0.8. Overall mean K value for O. mossabicus was 1.9. Highest K value was 4.6 while lowest K value obtained was 0.5. The mean K values recorded for males from the four species were higher than the females indicating that males were in a better state of wellbeing than the females. From the result, the general observation of the condition of the fishes was the sampled fishes were in good condition and sustainable management should not be neglected.
Keywords
Length-Weight Relationship, Condition Factor, Tilapia Zilli, O. Niloticus, O. Mossabicus, O. Aureus, Ebonyi River
Reference
| [01] | Chapman, Frank A. (1992). Culture of Hybrid Tilapia. Pp. 1051. |
| [02] | Baker, J. (1998). Simply Fish. London; Faber and Faber. pp. 197. |
| [03] | Getahun, A. (2003). Breeding season, length-weight relationship and condition of introduced fish, Tilapia zilli Gerv. l 848 (Pisces: Cichlidae) Lake Zwai, Ethiopia. Ethiopian Journal of Science, 26(2): 115-122. |
| [04] | Appler, H. N. (1985). Evaluation of Hydroichyon Reticulatum as a Protein Source in Feeds for Oreochromis (Tilapia) niloticus and Tilapia zilli, Journal of Fish Biology, 27:32 7-334. |
| [05] | Mahomoud, W. F., Amal, M. M. A., Kamal, F. E. A., Mohamed, R. and Magdy M. K. O. E (2011). Reproductive biology and some observation on the age, growth, and management of Tilapia zilli (Gerv, 1848) from Lake Timsah, Egypt. International Journal of Fisheries and Aquaculture 3(2), 15-25. |
| [06] | Haruna, O. A. and Bala, S.H (2006). Condition factor of the chichlidae family in the upper Parna river flood plain, Brazil. Journal of Fish biology 32:515-18. |
| [07] | Olurin, J.C. and Adeighe, N.A (2006). Observation on the condition factor of O. niloticus (Pisces: cyprinfonns, chichlidae) from Asa reservoir Ilorin, Nigeria. Journal of Fisheries and Aquatic Science 5: 43-47. |
| [08] | [87] Bagenal, T. B. and Tesch, F. W. (1978). Methods for assessment of fish production in fresh water.3rd edition in age and growth, 101-136. |
| [09] | Uneke, B. I. (2013). Morphometric Parameters and Condition Factor of Tilapia zilli (Perciformes: Cichlidae) of the Mid Cross River Flood System, South Eastern Nigeria. Continental J. Animal and Veterinary Research 6 (1): 1-10. |
| [10] | Anene, A. (2005). Condition Factor for Chichild Species of a man-made lake in Imo State. South-Eastern Nigeria. Turkish Journal of Fisheries and Aquatic Sciences, 5:43-47 |
