TBTO 의 노출에 따른 참굴 , Crassostrea gigas 의 hemolymph 내 무기성분 및 효소활성의 변화 = Changes of Inorganic Matter and Enzyme Activity in the Hemolymph of Oyster , Crassostrea gigas Exposed to TBTO

다국어 초록 (Multilingual Abstract)

The purpose of this study is to find out the effects of various bis(tri-n-butyltin)oxide (TBTO) on changes of inorganic matter and enzyme activity in the hemolymph of Pacific Oyster, Crassostrea gigas. Oyster were exposed to 5,10,20,50,80and 100㎍/L of TBTO for 20 days. Survival rate of the oyster wass significantly affected by ≥80㎍/L TBTO concentration at 10 days, while the diminution of survival was found at 20 days with a lower concentration of ≥50㎍/L TBTO. Calcium concentration in the hemolymph increased significantly after 20 days at the TBTO concentration 20 ㎍/L. However no change of magnesium and inorganic phosphate in the hemolymph was showed. A significant increment of GOT activities in the hemolymph was observed after 20 days at more than 20㎍/L TBTO concentraion, without typical changes of GPT activities. These results indicate that oysters can be affected by TBTO in terms of calcium concentration and GOT activity in the hemolymph when they were exposed to the TBTO concentration 20㎍/L.