Abstract
AbstractThe cyprinid pool barb Puntius sophore (Hamilton 1822) is widely distributed in freshwaters of Southern Asia. We determined some basic population biology parameters of P. sophore including sex ratio, length-frequency distributions (LFDs), length-weight relationships (LWRs), condition factors, relative weight and fecundity. Samples were collected monthly during July 2010 to June 2011 from the Padma River, Bangladesh. The overall fish sex ratio significantly differed from the anticipated value of 1:1 (p < 0.001) in favour of female specimens (1: 1.31). Females were significantly larger and heavier than males (p < 0.001). The LWRs showed isometric growth in both sexes; however, with clear monthly variation. Fulton's condition factor was found to be significantly correlated with the total length (TL) and body weight (BW) and the most suitable among the studied condition factors for interpreting population well-being. Total fecundity varied from 1488 to 18708 (5682 ± 3703), while the relative fecundity...
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