The Korean Journal of Ecology

한국생태학회 (The Ecological Society of Korea)
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한국산 희귀조류 수 종에 대한 중금속 축적

Heavy Metal Accumulation in Some Korean Rare Bird Species

  • 발행 : 2004.06.01
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초록

본 연구는 여러 가지 원인으로 사망한 한국산 희귀조류 4목 16종 76개체를 이용하여 납과 카드뮴의 조직 축적레벨을 밝히고 오염수준을 비교 검토하였다. 남의 경우 전반적으로 간보다 신장과 뼈에서 높은 농도를 나타냈다. 간조직에는 평균농도는 0.47 ㎍/wet g(큰고니 Cygnus cygnus)∼3.74 ㎍/et g(쇠부엉이 Asio flammeus)의 범위를 나타냈고, 납의 독성 여부를 수준별로 보면 비오염수준인 2 ㎍/wet g 이하에 해당하는 개체가 51.3%(39개체), 오염수준이 10 ㎍/wet g 이상에 해당하는 개체가 2.6%(2개체)로 나타났다. 따라서 상당수의 한국산 희귀조류가 만성적인 납 오염에 노출되어 있는 것으로 판단된다. 카드뮴의 경우 신장조직에서 가장 높게 나타났으며 간과 뼈에서는 비슷한 경향을 보였다. 신장조직에서의 평균농도는 0.06 ㎍/wet g(수리부엉이)∼1.75 ㎍/wet g(새홀리기 Falco subbuteo)의 범위를 나타냈고 소쩍새 1개체를 제외하고 모두 비오염 수준에 해당하였다.

This paper reports on Pb and Cd concentrations in the tissues of 76 individuals of 16 rare bird species found dead across Korea. In most of species, Pb concentration was higher in kidney and bone than in liver. The range of the mean liver Pb was 0.47 (Cygnus cygnus)∼3.74 ㎍/wet g (Asio flammeus). Based on hepatic Pb concentrations, 39 (51.3%) of the 76 individuals were classifed as background level (〈2㎍/wet g), 35 (46.1%) were elevated level (〉2㎍/wet g) and 2 (2.6%) were poisoned level (〉10㎍/wet g). These results were indicated many rare birds were suffered from chronic Pb exposure. Cd concentration was generally higher in kidney than in liver and bone. The range of the mean kidney Cd was 0.06 (Bubo bubo)∼l.75㎍/wet g (falco subbuteo). Only one of the 76 individuals had elevated Cd concentration (〉2.7㎍/wet g) in kidney. These results indicated most of rare birds had low Cd accumulations.

키워드

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피인용 문헌

  1. Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran vol.185, pp.1, 2018, https://doi.org/10.1007/s12011-017-1237-2