Morphometric relationship of Perna viridis Linnaeus, (1758) from the Manora Channel, ‎coastal waters of Pakistan

Abstract

Perna viridis (Green Mussels) is characterized by fast-growing, found in large clusters, ‎one of the dominant bio-fouling organisms, native to West Indo Pacific region and ‎commonly distributed along the Southeast Indian and Asian coast. They are found in ‎the shallow sublittoral water up to a depth of 15 m and be able to tolerate an extensive ‎range of environmental situation i.e. tolerate temperatures range of 15-32.5C. Green ‎mussels were collected from the navigation buoy in Manora Channel and brought to the ‎research laboratory. Samples were washed to remove the sand, vegetation, and other ‎particles. Morphometric measurements were measured to the nearest gram. The result ‎revealed that the shell length ranged between 0.60-7.4 cm, the width range between 0.10-‎‎2.9 cm, and the weight range between 0.037-15.549 g. In all morphometric relationships, ‎the validation of the “b” values was significantly different from the isometric value. ‎Significant correlation variation was observed in all variables whereas the highest ‎correlation values were observed in the length-width (n-224, r2 = 0.966) and the lowest ‎was observed in width-total weight (n-224, r2 = 0.85). The analysis of variance (ANOVA) ‎revealed that all variables showed significantly different (DF=1, p<0.000).‎