مقايسه رشد و رسيدگي جنسي صافي ماهيان گونه هاي SIGANUS SUTOR و SIGANUS JAVUS در حوضچه هاي بتوني در استان هرمزگان

Comparison of growth and Maturation of rabbitfishes (Siganus javus, S. sutor) in the concrete tanks in Hormozgan province

Growth and maturation of rabbitfishes (Siganus javus. S. sutor) in concrete tanks were compared in Hormozgan province. Juveniles of fishes were captured by used of gillnet, traps and hooks from Bandr-e- Kong, Bandar-e-Hassineh and rocky coastals of Bandar-e- Lengeh. Fishes were transferred to aquaculture department and stocked in 6mʹ concrete tanks at a density of 15indlmʹ. They were fed with commercial shrimp pellet and crabs meat at a rate of 3-5 percent of their body weight. Some physicochemical factors such as temperature and dissolved oxygen were measured each five days. Growth of fishes was measured by monthly biometery. In order to survey of maturation, 50-10 fishes were autopsyed each month from March to September. Results revealed that Siganus sutor grows faster than S. javus and mature in cultivation tanks. There was significant difference between the growth of S. sutor and S. javus. The body weight of S. javus reach from 117.31+ 40.37 to 181.3 ± 33g whereas S. sutor grew from 127.6 + 21.52 to 292.4 + 62.04g in about 8 months.