영종도와 삼목도에 도래하는 섭금류(Shorebirds)의 간과 신장에서 중금속 농도
Heavy Metal Concerntration in Liver and Kidney of Shorebirds Migrating to Yeongjong and Sammok Islands
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초록
본 연구는 우리나라 영종도와 삼목도에 도래하는 섭금류(Shorebirds)의 간과 신장에서 중금속 축적에 대한 연구이다. 아연의 농도는 영종도의 큰뒷부리도요의 간과 신장에서 각각 76.7 ㎍/wet g, 65.8 ㎍/wet g으로서 가장 높은 농도를 보였다. 망간의 경우, 간에서 가장 높은 농도는 4.68 ㎍/wet g을 나타낸 영종도의 청다리 도요였고, 신장에서는 삼목도의 흰물떼새에서 18.61 ㎍/wet g으로 가장 높았다. 구리농도는 영종도 큰뒷부리 도요의 간과 신장에서 각각 25.4 ㎍/wet g과 44.1 ㎍/wet g으로 가장 높았다. 납 농도가 가장 농도가 높게 나타 난 종은 삼목도의 좀도요로서 간에서 17.0 ㎍/wet g, 신장에서 40.2 ㎍/wet g이었다. 그리고 납 농도는 모든종에서 신장에서의 농도가 간에서의 농도보다 높게 나타났다. 간에서 카드뮴 농도는 0.73±0.26 ㎍/wet g을 나타낸 영종도의 민물도요에서 가장 높았고, 신장에서는 영종도의 흰물떼새에서 4.89±1.49 ㎍/wet g으로 가 장 높았다. 카드뮴은 모든 종에서 간보다는 신장에서 농도가 높았다. 그리고 간과 신장에서의 납과 카드뮴 농도는 붉은어깨도요를 제외하고는 영종도에서의 농도가 삼목도보다 높았다.
Abstract
This study was about heavy metal accumulation in liver and kidney of Shorebirds migrating to Yeongjong and Sammok Island. Zinc concentration was highest in liver (76.7 ㎍/wet g) and kidney (65.7 ㎍/wetg) of Limosa lapponica to Yeongjong Island. In case of manganese, the highest accumulation in liver was Tringa nebularia to Yeongjong Island, and in kidney was Charadrius alexandrinus, to Sammok Island, respectively 4.68㎍/wet g, 18.6 ㎍/wet g. Copper concentration was the highest that in liver (25.4 ㎍/wet g) was Limosa lapponica to Yeongjong Island, in kidney (11.7 ㎍/wet g) was Tringa cinereus to Sammok Island. Calidris ruficollis to Sammok Island was the highest accumulated lead and concentration was 17.0 ㎍/wet g in liver, 40.2 ㎍/wet g in kidney. Lead concentration was more in kidney than in liver. Cadmium concentration in liver was the highest accumulated Calidris alpina (0.73±0.26 ㎍/wet g) to Yeongjong Island, in kidney was the highest accumulated Charadrius alexandrinus (4.89±1.49 ㎍/wet g) to Yeongjong Island. Cadmium concentration was higher in kidney than in liver to all species. Therefore, lead and cadmium concentration was more to Yeongjong than to Sammok Island in liver and kidney except Calidris tenuirostris.
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