Morphometric Relationships of Length-Weight and Length-Length of Four Cyprinid Small Indigenous Fish Species from the Padma River (NW Bangladesh)

This study describes the length-weight (LWR) and length-length (LLR) relationships of four cyprinid important small indigenous fish species (SIS) from the Padma River, Bangladesh. A total of 914 specimens were caught by traditional fishing gear from March 2006 to February 2007. Length (cm) and body weight (g) for each specimen was taken by a digital slide caliper and balance, respectively. The allometric coefficient b was close to isometric value (≈3.000) in Aspidoparia morar and Puntius ticto, although it suggested positive allometric growth in Amblypharyngodon mola and Lepidocephalus guntea. The results further indicated that LLRs were highly correlated (r >0.932; P<0.001).