Length-Weight Relationship And Condition Factor Of Four Mormyrid Species Of Anambra River

Food items and general condition of Hyperopisus bebe occidentalis (Lacepede, 1803) caught in Warri River, Nigeria

“…There was a significant correlation between body weight and total length of specimens found in this study. Increases in total length resulted in corresponding increases in body weight, as reported (Nwani et al, 2006). According to Olurin and Aderibigbe (2006), differences in total length and body weight distributions are dependent of sex and developmental stages of the fish.…”

“…Total length and body weight measurements were recorded to the nearest ± 0.01 mm and ± 0.1 g using a measuring board and a triple beam balance (OHAUS 210 Model), respectively. Length weight relationship was calculated with the formula W = aLb according to Nwani et al (2006) and Erhijowvho (2007). Bodyweight increases more rapidly than total length; hence, the formula was logarithmically transformed for the purpose of data analysis; thus:…”

“…In Anambra River for instance, this species consumed benthos and allochtonous invertebrates mixed with a limited amount of mud (Malami et al, 2002(Malami et al, , 2004Nwani et al, 2006). The study of food and feeding habits enables farmers to have clear understanding of the fish's dietary requirements and to compound appropriate feeds as supplement in aquaculture (Malami et al, 2004).…”