A total of 927 specimens of salema, Sarpa salpa, were collected by commercial gillnet and trammel net fishing between October 2004 and September 2005 from the Izmir Bay. Fish size ranged in total length (TL)15.6 - 42.6 cm in all sexes. The parameters a and b of the length-weight relationships (LWRs) were calculated as W=aL(b) are presented LWRs for males, females, hermaphrodite and the total sample population was determined as W=0.0294L(2.750), W=0.0216L(2.840), W=0.0115L(3.058) and W=0.0189L(2.894), respectively. Length-length relationships (LLRs) were measured as TL=a+bFL, FL=a+bSL and SL=a+bTL equations in all sexes and combined. In all the samples together, LLRs are as follows: TL=0.088+1.1255FL, FL=0.043+1.0608SL and SL=0.000+0.8414TL. The results further indicated that LLRs were highly inter correlated (r(2) < 0.90, p < 0.01).