بررسي ميزان جيوه در چهار عضو (طحال،كليه،باله و عضله) كوسه ماهي چانه سفيد (carcharhinus dussumieri) در سواحل استان بوشهر

Surveying mercury rate in four organs (spleen, kidney, wing and muscle) of Persian gulf white chin shark (Carcharhinus dussumieri)

In this research we measured the rate of mercury in different organs of white chin shark (Carcharhinus dussumieri) in the Persian Gulf. This took place in three stations: Bushehr, Dayyer and Gonaveh. The pollution level was in four organs kidney, spleen, wings (caudal and dorsal) and muscle. The iteration numbers in this experiment was nine in each station. According to the data obtained, although three stations had discrepancies in pollution, it was not statistically significant. With another survey that took place on the relationship between pollution intensity and fish length, we concluded that this relationship was completely significant, it means that when length increases, pollution intensity increases, too. This statistical analysis took place via correlation coefficient test and also T-student test that yielded the above results. Another result obtained was measuring the pollution load of these aquatic resources in relation to mercury intensity in their organs. Its maximum was in a kidney sample 8834 ppb and its minimum in wing sample 255 ppb. Anyway the average of mercury rate in different organs was: muscle 1338.633; kidney 1089.012; spleen 1149.965; wing 705.8513 ppb. The results show, except for the wings, the mercury rate in the rest of the organs was higher than the standards of international organizations like FAO and WHO.