International Journal of Aquaculture, 2018, Vol.8, No.3, 17-22
20
The body condition of fish is affected during peak spawning season the energy requirement for egg development
in females and sperm production in males (Ighwela et al., 2011; Gebremedhin et al., 2012). Based on this male
fishes were found in better condition (1.36) than females (1.28) in Arno-Garno River (Gebremedhin et al., 2012).
However, females were in better condition in Beles River (Berie, 2007) Aveya River (Gebremedhin and Mengist,
2014) (Figure 4). In Lake Ziway, female fishes showed the highest mean condition factor (1.88) than males (1.52)
(Abera, 2016).Whereas in Lake Koka (Dadebo et al., 2013) the condition factor did not vary considerably among
the sexes. Such a condition was reported from Nile River (Awoke et al., 2015) and Gilgel Beles River (Berie,
2007). It leads to conclude that high condition index of fish is associated with the amount of energy (fat) content,
type of food available, reproductive potential and favorable environmental conditions (Paukert and Rogers, 2004).
Figure 4 Fulton Condition Factor (Mean) male and female
L. intermedius
3 Conclusion
Growth pattern of fish varied in the different water bodies however, comparatively good condition factor was
found in the fishes collected from Lake Ziway and Lake Langano than those observed from the rivers. The body
condition of fish also varied with seasons and sex in the water bodies considered. Therefore, proper management
of aquatic ecosystems is vital for sustainable fish stock utilization in the country.
Authors’ contributions
Agumassie Tesfahun and Mathewos Temesgen have compiled the data and prepared the manuscript. Dr. Prabhadevi has edited and
contributed in the finalization of the manuscript. All authors read and approved the final manuscript.
Acknowledgements
We acknowledged the efforts made by the earlier researchers and express my gratitude for permitting to use the required data from
their publications.
References
Abera L., 2016, Current status and trends of fishes and fishery of a shallow rift valley Lake, Lake Zeway, Ethiopia, PhD Dissertation submitted to Department
of Zoological Sciences, Addis Ababa University, Ethiopia, pp. 90-95
Admassu D., Dadebo E., 1997, Diet composition, length-weight relationship and condition factor of
Barbus
species (Rüppell, 1836) (Pisces: Cyprinidae) in
Lake Awassa, Ethiopia, SINET: Ethiop J. Sci., 20: 13-30
Anteneh W., 2007, The spawning migration of Labeobarbus (Cyprinidae: Teleostei) of Lake Tana to Dirma and Megech Rivers, Ethiopia. MSc Thesis,
Department of Biology, Addis Ababa University, Ethiopia, 85-86
Awoke T., 2015, Fish Species Diversity in Major River Basins of Ethiopia: A Review, World Journal of Fish and Marine Sciences, 7: 365-374
