population distribution of bony fishes in less-than-ten-meter depths of mazandaran coasts

in this study, the diversity and distribution of economical bony fishes in less-than-ten-meter depths, cpue and population features such as total length, weight and age were investigated in the southern part of the caspian sea in 1385-6. sampling was done in five regions: amir abad, larim, izdeh, kheyroud, and nashtarood with gilnet in mesh sizes of 26, 33, 40, 60, 100, and 150 mm. in total, 227 fishes were caught: 110 rutilus frisi kutun, 32 ciprinus carpio, 36 caspiolasa kesslerri, 38 liza auratus, 8 stizostidion lucioperca and 3 vimba vimba. the cpue was 3.66 for rutilus krisi kutum, 0.5 for carpio, 0.52 for caspiolasa, 0.63 for auratus , 0.13 for stizostidion lucioperca, and 0.05 for vimba vimba per catch. the average total length of rutilus, carpio, caspiolasa kesslerri, liza auratus, stizostidion lucioperca, vimba vimba are 37.9±7.2, 31.6±7, 23.1±4.4, 22.6±2.3,  23.6±3, 20.5±2 cm, respectively. and the averages of the total weight are 683.5±361.2, 379.5±242.6, 112.3±125.9, 104.6±33.4, 225.6±4, 91.6±2 gr., respectively: regarding their ages, rutilus frisi kutum was in , cyprinus carpio was in ,  caspiolasa kesslerri was in ,  liza auratus was in 2+ ,  stizostidion lucioperca was in   and vimba vimba was in 3+ .