한반도 동해안 밍크고래 체내 미량금속 잔류특성 = Characteristics of Metal Concentration in the Organs of Minke Whale Entangled from the Eastern Coast of Korea

국문 초록 (Abstract)

한반도 연안에 서식하는 고래의 조직 내 미량금속 농도 잔류특성을 알아보기 위하여 2009년 동해안에서 혼획된 밍크고래의 간, 창자, 근육, 표피, 지방 내 미량금속(Cu, Cd, Pb, As, Zn, Hg) 농도를 측정하였다. 조직 내 Cu, Cd, Zn, Hg은 간에서 가장 높고 지방에서 가장 낮았다. 이와 대조적으로 As는 지방에서 가장 높은 농도를 보였으며, 근육에서 가장 낮은 농도를 나타내었다. 전반적으로 밍크고래의 조직 내 미량금속은 Zn > Cu > As > Pb > Hg > Cd의 순으로 높은 농도를 나타내었다. 성별에 따른 미량금속은 수컷은 간과 표피에 Cu, As, Zn을, 암컷은 창자와 근육에 Cu와 Pb을 더 효율적으로 축적하고 있는 것으로 나타났다. 성숙도에 있어서는 간의 경우 Cd, 근육은 Hg, 표피와 지방은 As와 Hg, 창자는 Cd, As, Hg이 성숙한 개체에서 미성숙한 개체보다 상당히 높은 농도를 보였다.

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