In this study a total of 165 (10.0-21.0 cm TL, 17.40-180.10 g TW) Redcoat, Sargocentron rubrum (Forsskål, 1775) were caught in IskenderunBay between September 2017 and April 2018 using a longline As a result, length-weight relationships (LWRs), sex ratio and condition theestimates for b parameter of the LWR ranged between and 3.098 3.096 and 3.100 for males, females and both sexes, respectively. Positiveallometric growth were observed for male, female and both sexes. Fulton’s condition (KF) factor values also revealed not significant variations(P>0.001) for females (1.904) and males (1.926) specimens of S. rubrum. No information currently exists on the length-weight relationship andcondition of S. rubrum in the southeastern Mediterranean coast of Turkey. This paper is an important contribution to the science and fisheriesmanagement applications for this species.