Survival Rate, Growth and NP Accumulation of the Striped Bitterling, Acheilognathus yamatsutae Long-term Exposed to Nonylphenol (NP)

노닐페놀 (NP)에 장기간 노출된 줄납자루, Acheilognathus yamatsutae의 NP 체내 축적, 성장 및 생존율

  • Jin, Young-Guk (Department of Aqualife Medicine, College of Fsheries and Ocean Science, Chonnam National University) ;
  • Kim, Chi-Hong (Central Inland Fisheries Research Institute) ;
  • Lee, Chul-Woo (Environmental Exposure Assessment Divison, National Institute of Environmental Research) ;
  • Lee, Jung-Sick (Department of Aqualife Medicine, College of Fsheries and Ocean Science, Chonnam National University)
  • 진영국 (전남대학교 수산해양대학 수산생명의학과) ;
  • 김치홍 (국립수산과학원 중부내수면연구소) ;
  • 이철우 (국립환경과학원 환경노출평가과) ;
  • 이정식 (전남대학교 수산해양대학 수산생명의학과)
  • Published : 20080400

Abstract

Striped bitterling, Acheilognathus yamatsutae (TL: 4.25 ㎝, TW: 0.73 g)were exposed to 0.3, 1.3, 17.6 and 33.7 ㎍ L-1 (nominal concentrations) of nonylphenol (NP) for a period of 20 weeks. We studied on accumulation, growth and survival rate. After 20 weeks of exposure, the accumulation of NP in the body of the female and male was increased with increasing dose-dependent and female was higher than male. 4 weeks of exposure, TL of female striped bitterling was found to be increased in all of the dose group compared to control and 12 weeks of exposure, similar or some decreased in all of the dose group compared to control. 20 weeks of exposure, increased in all of the dose group compared to control and TL at 33.7 ㎍ NP L-1 were significantly higher than those in control (p <0.05). 4 weeks of exposure, TL and TW of male striped bitterling was found to be increased in all of the dose group compared to control and significantly higher in TL of 33.7 ㎍ NP L-1 (p <0.05). 12 and 20 weeks of exposure, TL and TW decreased in all of the dose group compared to control and significantly lower in 1.3 ㎍ NP L-1 of 12 weeks. Survival rate in both groups decreased with increasing NP concentration and there was a significant difference between control group and experimental groups exposed to each NP concentration.

줄납자루, Acheilognathus yamatsutae를 노닐페놀에 노출시킨 후 노닐페놀의 체내축적, 성장 및 생존율을 관찰하였다. 줄납자루는 평균 전장 4.25 cm, 평균 전중 0.73 g의 성어 288개체를 실험에 이용하였으며, 노출기간은 20주였다. 체내 노닐페놀 축적은 암수 모두 농도 의존적 증가를 나타냈고, 암컷보다 수컷에서의 축적량이 높게 나타났다. 암컷의 전장 (㎝)은 대조구에 비해 증가 후 감소하다가 다시 증가하였고, 노출 20주의 33.7 ㎍ NP L¹에 노출된 개체들은 대조구와 유의적인 차이를 보였다. 수컷의 전장 (㎝) 및 전중 (g)은 대조구에 비해 증가하다가 노출 12주부터 감소하였으며, 노출 12주째 1.3 ㎍ NP L¹에 노출된 개체들은 대조구와 유의한 차이를 보였다. 생존율은 노출 12주에 33.7 ㎍ NP L¹에서 유의적인 차이가 나타났고, 노출 16주부터는 농도 의존적 감소와 동시에 모든 농도구들에서 대조구에 비해 유의적인 차이를 나타냈다. 본 연구에서 노닐페놀의 체내 축적은 축적량 및 축적율에 있어 암컷보다는 수컷에서 높게 나타났으며, 이는 암수간 성장 및 생존율에 영향을 미치는 것으로 보인다.

Keywords

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