Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Characteristics of Metal Concentration in the Organs of Minke Whale Entangled from the Eastern Coast of Korea

한반도 동해안 밍크고래 체내 미량금속 잔류특성

  • 전유영 (국립수산과학원 어장환경과) ;
  • 황동운 (국립수산과학원 어장환경과) ;
  • 이인석 (국립수산과학원 어장환경과) ;
  • 최민규 (국립수산과학원 어장환경과) ;
  • 김숙양 (국립수산과학원 어장환경과) ;
  • 이석모 (부경대학교 생태공학과)
  • Received : 2012.11.08
  • Accepted : 2012.12.27
  • Published : 2012.12.31
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Abstract

To determine the concentration of trace metals in the tissues of whale from the coastal ocean of Korea, we measured the concentration of trace metals (Cu, Cd, Pb, As, Zn and Hg) in the organs (liver, intestine, muscle, epidermis and blubber) of minke whale entangled from the eastern coast of Korea in 2009. The highest and lowest concentrations of Cu, Cd, Zn, and Hg were found in the liver and blubber, respectively. In contrast, the highest and lowest concentration of As was found in the blubber and muscle, respectively. The accumulation trend of trace metals in the organs of minke whales was in the order Zn > Cu > As > Pb > Hg > Cd. The concentrations of Cu, As and Zn in liver and epidermic were higher in male than in female, whereas the concentrations of Cu and Pb in intestine and muscle were higher in female than in male. The mature individuals of minke whale were much higher Cd in liver, Cd and Hg in muscle, As and Hg in epidermic and blubber, Cd, As and Hg in intestine than immature individuals of minke whale.

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.

Keywords

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