Abstract
Fish scales are remarkable structures which plays a significant role in fish taxonomy. Therefore, a study was carried out to notice the significance of different scale parameters such as; scale length (TLS), scale width (WDS), number of ctenii in horizontal row (HRS), number of ctenii in vertical row (VRS) and number of radii (RDS) in fish taxonomy using statistical calculations. A total of 54 specimens of Scatophagus argus were collected from the commercial landings at fish harbours of West Wharf and Korangi creek, Pakistan. Different parameters of scales (i.e., TLS, WDS, HRS, VRS and RDS) were studied under compound microscope. The relationship among these scale parameters were studied with the help of linear regression equation ( ). All results were found highly significant (p0.70) correlations. The analysis showed that the growth of scale parameters are mostly proportional to fish body length.