CAJ | 학술논문

以中国南海常见的多毛类——华美盘管虫(Hydroides elegans)作为受试生物,分别研究了吡啶硫酮铜和吡啶硫酮锌对早期不同发育阶段的华美盘管虫的急性毒理效应。发现暴露于吡啶硫酮铜的华美盘管虫精子和卵子的受精半数抑制浓度(IC50)分别为19.49μg/L和88.44μg/L,担轮幼虫24 h半数致死浓度(24h-LC50)和48 h半数致死浓度(48h-LC50)分别为7.35μg/L和5.00μg/L,后担轮幼虫24h-LC50和48h-LC50分别为8.57μg/L和5.87μg/L；暴露于吡啶硫酮锌的华美盘管虫精子和卵子的受精IC50分别为36.74μg/L和159.59μg/L,担轮幼虫24 h-LC50和48 h-LC50分别为8.57μg/L和6.67μg/L,后担轮幼虫24 h-LC50和48 h-LC50分别为12.03μg/L和8.07μg/L。表明华美盘管虫早期发育的不同阶段对吡啶硫酮铜和吡啶硫酮锌的敏感性表现出一定差异,与配子受精率和后担轮幼虫的毒性反应相比,担轮幼虫对吡啶硫酮铜和吡啶硫酮锌的毒性表现出较高的敏感性；而且,对吡啶硫酮铜的敏感性普遍高于吡啶硫酮锌。
이중국남해상견적다모류——화미반관충(Hydroides elegans)작위수시생물,분별연구료필정류동동화필정류동자대조기불동발육계단적화미반관충적급성독리효응。발현폭로우필정류동동적화미반관충정자화란자적수정반수억제농도(IC50)분별위19.49μg/L화88.44μg/L,담륜유충24 h반수치사농도(24h-LC50)화48 h반수치사농도(48h-LC50)분별위7.35μg/L화5.00μg/L,후담륜유충24h-LC50화48h-LC50분별위8.57μg/L화5.87μg/L；폭로우필정류동자적화미반관충정자화란자적수정IC50분별위36.74μg/L화159.59μg/L,담륜유충24 h-LC50화48 h-LC50분별위8.57μg/L화6.67μg/L,후담륜유충24 h-LC50화48 h-LC50분별위12.03μg/L화8.07μg/L。표명화미반관충조기발육적불동계단대필정류동동화필정류동자적민감성표현출일정차이,여배자수정솔화후담륜유충적독성반응상비,담륜유충대필정류동동화필정류동자적독성표현출교고적민감성；이차,대필정류동동적민감성보편고우필정류동자。
This paper usedHydroides elegans, common polychaete in China South Sea, investigate the acute toxic-ity of copper pyrithione (CuPT) and zinc pyrithions (ZnPT) on its different life stages. The fertilization IC50 values of sperm and egg exposed to CuPT were 19.49 μg/L and 88.44 μg/L, the LC50 values for trochophone larvae were 7.35 μg/L (24 h) and 5.00 μg/L (48 h), and the LC50 values for metatroch larvae were 8.57 μg/L (24 h) and 5.87 μg/L (48 h), respectively; while the fertilization IC50 values of sperm and egg exposed to ZnPT were 36.74 μg/L and 159.59 μg/L, the LC50 values for trochophone larvae were 8.57 μg/L (24 h) and 6.67 μg/L (48 h) , the LC50 values for metatroch larvae were 12.03 μg/L (24 h) and 8.07 μg/L (48 h), respectively. The results show that the sensitivity to CuPT and ZnPT is related to the life stages ofHydroides elegans. Compared to the inhibition rate of gametes fer-tilization and the toxic response of metatroch larvae, the trochophore larvae are more sensitive to CuPT and ZnPT, and the early life stages ofH. elegans generally show a higher sensitivity to CuPT than to ZnPT.