International Journal of Aquaculture, 2018, Vol.8, No.3, 17-22
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showed variations among the populations in the rivers and reservoirs. It was comparatively high (1.14, 1.1, 1.05)
respectively in Angereb (Tesfaye, 2006) in Beles and Sanja Rivers (Berie, 2007) than Gilgel Beles (0.99) (Dadebo
et al., 2013) and Nile River (0.99) (Awoke et al., 2015). Higher condition is associated with high energy content,
adequate food availability, reproductive potential and favorable environmental conditions. Relatively higher
condition factors were reported from Lake Ziway (1.73) (Abera, 2016), in Lake Langeno (1.33) (Temesgen, 2017),
Arno-Garno River (1.3), Aveya River (1.22) (Gebremedhin et al., 2012), (Wakjira, 2013) Geba and Sor Rivers
(1.21) (Melaku et al., 2017) and Gilgel Gibe Reservoir (1.18) (Gebremedhin and Mengist, 2014) (Figure 2). The
condition factor from Lake Koka was (1.0) (Dadebo et al., 2013) lower than Lake Ziway and Lake Langeno
(Figure 2).
Figure 2 Fulton Condition Factor (Mean) of
L. intermedius
in some water bodies
Ighwela et al. (2011) stated that seasonal fluctuations in food quantity and quality, water level, flow rate and
temperature affect the condition factor of fishes. The mean Fulton condition factor of this species was greater in
dry season (1.1) than wet (0.9) in Lake Koka (Dadebo et al., 2013) period. Similar seasonality was observed in
Arno-Garno River (Gebremedhin et al., 2012) however, the values were higher (1.39 in dry season) (1.28 wet
season) than Lake Koka. Comparatively high condition factor values during wet season than dry season were
observed in Angereb and Sanja Rivers (Tesfaye, 2006), Aveya River (Gebremedhin and Mengist, 2014), Gilgel
Gibe Reservoir (Wakjira, 2013). The condition factor of the species did not varied very much between the seasons
in Geba and Sor Rivers (Melaku et al., 2017), Beles and Gilgel Beles (Berie, 2007) and in Nile River (Awoke et
al., 2015) (Figure 3).
Figure 3 Seasonal variation of Fulton Condition Factor (Mean) of
L. intermedius
