This research was carried out to assess the amount of biomass and Catch Per Unit of Area (CPUA) and also to determine the distribution pattern of Carangid family as one of the most important and commercial fish species in the northwest of Persian Gulf based on trawl survey results in 2011. Samples were collected at a total 65 trawl stations selected a stratified random procedure. The catch rates of CPUA and biomass of different species of Carangids were estimated to be approximately 398.0 kg/nm2, 3652.7 tons, respectively. The highest value of CPUA was recorded in the east of the study area (stratum E, Dayer to Ras-Naiband, approximately 1520.0 kg/nm2) and for depth layer of 30-50 m with value of 718.8 kg/nm2. The highest biomass was found 1863.5 and 2777.2 tons in stratum C (Genaveh to Bordkhoon) and depth layer 30-50 m, respectively. The CPUA index in stratum E and depth layer of 30-50 m showed significant differences with other strata and depth layers (P < 0.05). It was concluded that the density and frequency of carangids showed ascending trend with increasing the depth. As an overall result, in the northwest of Persian Gulf, the stratum E and 30-50 m depth layer was found as the best fishing ground with the highest biomass and density.
