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This study was conducted to find out concentration of trace metal, survival rate, falling rate and structural changes of abalone, Haliotis discus hannai exposed to zinc chloride. Experimental groups were composed of one control condition and four exposure conditions (0.3, 0.8, 1.3, 1.8 ZnCl 2 mg/L). The accumulation of trace metal (zinc) in abalone was significantly increased all exposure group. Though the exposure groups had lower survival rate than the control group, higher falling rate than the control group. Histopathological changes in the foot, gill and hepatopancreas of abalone revealed obvious with exposure group than control group.Key words: Haliotis discus hannai , zinc chloride (ZnCl 2 ), histopathology   , ,                 .    ,           ,  ,        (Sorensen, 1991; Prasad, 1996; Cui et al ., 1999).      (Zn)    , DNA            (Wu and Wu, 1987; King

Histological Indicator Change of the Abalone, Haliotis discus hannai Chronic Exposed to Zinc Chloride (ZnCl2)

Histological Indicator Change of the Abalone, Haliotis discus hannai Chronic Exposed to Zinc Chloride (ZnCl₂)