Population dynamics of Liza abu, (Liza abu Heckel, 1843) in Shadegan wetland

In this study, the parameters related to growth and mortality of Liza abu in Shadegan wetland were studied. The sampling was carried out monthly to determine the length and weight at five stations including Douragh (Mahshahr), Rogbeh, Khoorosi, Salmaneh and Ateish. During implementation of the project from March 2013 to February 2014, a total of 493 fish were caught and transferred monthly to the laboratory for biometric analysis. The average lengths (±SD) in millimeters for male (20±138) and female (18±138) as well as the average weights (±SD) in grams for male (13±33) and female (14±33) were obtained respectively. The length-weight relationships for female (R2=0.89, W=0.00001L3.33, N=282) and male (R2=0.88, W=0.00001L 2.98, N=195) Liza abu were obtained. The values of length (247, 220 and 247 mm), growth parameters (0.56, 0.74, and 0.66), total mortality (2.83, 2.90 and 2.98), natural mortality (1.22, 1.36 and 1.22) and fishing mortality (1.73, 1.36 and 1.76)  for male, female and total were calculated, respectively. Considering the growth and mortality parameters obtained from American fisheries society (AFS) indices, this speciesis classified as a low vulnerable group