철에 노출된 넙치, Pacalichthys olivaceus의 혈액화학적 변동

Hemochemical Changes in Olive Flounder, Paralichthys olivaceus Exposed to Various Iron Concentrations

  • Kang, Ju-Chan (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Jee, Jung-Hoon (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Cho, Kyu-Seok (Chungcheongbukdo Inland Fisheries Research Institute)
  • 발행 : 2001.05.30

초록

주요 양식어류인 넙치를 대상으로 $0.1\sim10mg/\ell$ 범위의 철 농도에서 순환식 방법에 의해 50일 동안 사육하면서 혈액화학변동을 조사하였다. 넙치의 혈청 iron과 magnesium 농도는 1.0 mg/$\ell$의 철 농도에서 20일째부터 유의한 증가를 나타냈다. 혈청 calcium농도는 철 농도 1.0 mg/$\ell$에서 는 30일째부터 유의한 감소를 나타냈으나, inorganic phosphate의 뚜렷한 농도변화는 관찰되지 않았다. 혈청 total protein, albumin, glucose 농도는 철 농도 1.0 mg/$\ell$에서 노출 30일째부터 유의하게 감소하였고, total cholesterol 농도는 1.0 mg/$\ell$ 철 농도에서 노출 40일째부터 유의한 증가가 관찰 되었다. 혈청 GOT, GPT, LDH 및 amylase 활성은 철 농도 1.0 mg/$\ell$에서 40일째부터 유의하게 증가하였으나, Al-P의 뚜렷한 변동은 관찰되지 않았다. 이상의 결과는 철에 노출된 넙치 일부의 혈청 무기성분, 유기성분 및 효소활성은 철 농도 1.0mg/$\ell$ 이상에서 적어도 30일째부터는 변동한다는 것을 의미한다.

This study was carried out to determine the effects of various iron concentrations on the hemochemical changes of olive flounder, Paralichthys olivaceus exposed for 50 days. The flounder exposed to iron concentration 0.97 mg/$\ell$ started to increase significantly in serum iron and magnesium concentrations after 20 days. The low concentration of serum calcium concentration was observed at 30 days of the experiment in iron concentration 0.97 mg/$\ell$. Serum total protein, albumin and glucose concentrations initiated to decrease from 30 days at the iron concentrations of 0.97 mg/$\ell$ or up. Total cholesterol concentration was increased significantly after 40 days at iron concentration 0.97 mg/$\ell$. A significant increment of GOT, GPT and LDH activities in the flounder serum was noticed after 40 days at iron concentrations over 0.97 mg/$\ell$ without significant changes of Al-P. These results indicate that flounder can be affected by iron in terms of inorganic elements, organic substances and enzyme activity in serum when they were exposed to the iron concentrations 0.97 mg/$\ell$ or higher for 30 days.

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