Abstract: Seasonal numerical abundance and determination of size distribution of B. docmac in Lake Akata was conducted between May, 2008 and April, 2009. The result revealed that B. docmac was most numerous (14.7%) in November and also well represented in December (14.4%) and February (17.9%) but had low percentage abundance in June (9.7%) and July (7.3%). Details of species abundance show that B. docmac constituted 13.2%. B. docmac are fairly common throughout the year. The monthly mean sizes of B. docmac showed that the highest monthly mean standard length (31.00±3.00 cm) and mean weight (475.0±8.6 g) were obtained in the month of October, respectively.