[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Indexing and Abstracting::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
Publication Ethics::
Articles in Press::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
:: Volume 3, Issue 1 (5-2023) ::
injoere 2023, 3(1): 37-42 Back to browse issues page
Comparative and regression analysis of Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) (Family: Chchlidae) from Bugungu, Eastern region, Republic of Uganda, East Africa (0°23'31.92"N 33°13'51.95"E)
V. Thiruvengadam * , Akinsorotan A.M.
Abstract:   (780 Views)
Comparative and regression analysis of length-weight relationship of Oreochromis niloticus (Linneaus, 1785)  for a period of six months from October 2020 to March 2021,  Nile River, Bubungu, Eastern region, Uganda, East Africa, (0°23'31.92"N  33°13'51.95"E) (Fig 1). The slope value (b) estimated for O. niloticus of both sexes was found to be 3.4171. The regression equations derived for both sexes was estimated Log W=3.4171+0.1772 Log L. In spite of the fact that O. niloticus predetermined well in the wild collection of fish, there was a good statistical difference in their health and general wellbeing. The correlation coefficient was found to be (p<0.01). The significant difference between sexes of the species "F" value was at 1% level. The b value differed from the ideal cube law of "3" as is with the case of LWR studied in this region. The slope value was compared to Indo-Pacific regions.
Keywords: Oreochromis niloticus, Regression analysis, Population dynamics, Uganda
Full-Text [PDF 222 kb]   (413 Downloads)    
Type of Study: Research | Subject: Environment and Bio-monitoring
Received: 2022/08/4 | Accepted: 2022/12/31 | Published: 2022/12/31
References
1. Ahmed, E.O., Ali, Aziz. M.E. and A.A., 2011. Length-weight relationships and condition factors of six fish species in Atbara River and Khashm el-girba Reservoir. Sudan. International Journal of Agricultural Science, 3, 65-70.
2. Atukunda G., Peter Atekyereza, P., Walakira, J.K., State, A.E., 2021. Increasing Farmers' Access to Aquaculture Extension Services: Lessons from Central and Northern Uganda. Uganda Journal of Agricultural Sciences, 20, 2, pp. 49-68.
3. Beverton, R.J.R. and Holt, S.J., 1957. On the dynamics of exploited fish population. Fishery Invest. Lond Ser, 2(19), 533.
4. Blackwell, B.G., Brown, M.L. and Willis, D.W., 2000. Relative Weight (Wr): Status and current use in fisheries assessment and management’. Reviews in Fisheries Science, 8, 1-44.
5. FAO, 2004-2020. Fishery and Aquaculture Country Profiles. Uganda (2004). Country Profile Fact Sheets. In: FAO Fisheries and Aquaculture Department [online]. Rome: FAO. Updated 1 December 2004 [Cited 25 May 2020]. http://www.fao.org/fishery/
6. FAO, 2020a. Fishery and Aquaculture Country Profiles. Nigeria. Country Profile Fact Sheets. In: FAO Fisheries and Aquaculture Department [online]. Rome: FAO. Updated 1 November 2017 [Cited 25 May 2020]. http://www.fao.org/fishery/
7. FAO, 2020b. The State of World Fisheries and Aquaculture, 2012. Sustainability in Action. FAO, United Nations, Rome.
8. Froese, R., 2006. Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations. Journal of Applied Ichthyology, 22, 241-253.
9. Le Cren, E.D., 1951. Length-weight relationship and seasonal cycle in gonad weight and condition in perch (Perca fluviatilis). Journal of Animal Ecology, 20(2), 201-219.
10. Morey, G., Moranta, J. and Massut, E., 2002. Weight-length relationships of littoral to lower slope fishes from the western Mediterranean. Fisheries Research Journal, 62(1), 89-96.
11. Moutopoulos, D.K. and Stergiou, K.I., 2002. Length-weight and length-length relationships of fish species from the Aegean Sea (Greece). Journal of Applied Ichthyology, 18(3), 200-203.
12. Pauly, D., 1983. Some simple methods for the assessment of tropical fish stocks. FAO Fisheries Technical Paper No. 234. FAO, Rome.
13. Sendeor, G.W. and Cochran, W.G., 1967. Statistical Methods (6th Edn). Oxford and IBH publishing Co. New Delhi. 250P.
14. Steve, O.N. and Okeyo O.J.B., 2019. Assessment of length-Weight relationship condition factor of Nile tilapia (O. niloticus) in cage and open waters in Winam Guof of L.Victoria, Kenya. International Journal of Environmental Sciences & Natural Resources, 22(3), 97-101.
15. Vaitheeswaran, T., Karal Marx, K., Chidambaram, P., Sankarram, S. and Karthiga, P., 2013. Length-weight relationship of Nile tilapia of O. niloticus niloticus (Linnaeus, 1758) (Family: Cichlidae). Indian Journal of Veterinary and Animal Sciences Research, 43(1), 33-39.
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Thiruvengadam V, A.M. A. Comparative and regression analysis of Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) (Family: Chchlidae) from Bugungu, Eastern region, Republic of Uganda, East Africa (0°23'31.92"N 33°13'51.95"E). injoere 2023; 3 (1) :37-42
URL: http://injoere.com/article-1-58-en.html


Rights and permissions
Creative Commons LicenseThis work is licensed under a Creative Commons attributions (CC-BY).
Volume 3, Issue 1 (5-2023) Back to browse issues page
International Journal of Aquatic Research and Environmental Studies
Persian site map - English site map - Created in 0.05 seconds with 36 queries by YEKTAWEB 4642