Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Toxicity of TBT and TPT Compounds on the Survival of Rotifer (Brachionus plicatilis)

Rotifer(Brachionus plicatilis)의 생존율에 미치는 tributyltin (TBT)과 triphenyltin (TPT)의 독성

  • 전중균 (강릉대학교 해양생명공학부/동해안해양생물자원연구센터) ;
  • 이미희 (강릉대학교 해양생명공학부/동해안해양생물자원연구센터) ;
  • 이지선 (강릉대학교 해양생명공학부/동해안해양생물자원연구센터) ;
  • 이경선 (일본어 장기대학) ;
  • 심원준 (한국해양연구원 해양환경기후연구본부) ;
  • 신영범 (한국해양연구원 해양환경기후연구본부) ;
  • 이수형 (한국해양연구원 해양환경기후연구본부)
  • Published : 2003.06.01
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Abstract

This study was conducted te evaluate the effect of organotin compounds on rotifer(Brachionus plicatilis), which is important as food organism of aqua-cultured fish and shellfish. To evaluate the texicities of tributyltin compounds such as tributyltin chloride (TBTC), tributyltin oxide (TBTO), tributyltin acetate (TBTA) and tributyltin benzoate (TBTB), and triphenyltin compounds such as triphenyltin chloride (TPTC), triphenyltin fluoride (TPTF), triphenyltin hydroxide (TPTB), the survival rates of rotifer exposed to these compounds were measured as the 96 hr-$LC_{50}$. Exposed concentrations Were from 0.5 to 8 bbp depending on compounds. Based on 96 hr-$LC_{50}$ Value, the Order of toxicity in TBTs was TBTA(1.1 ppb)>TBTC (2.0)>TBTB (3.3)>TBTO(5.6), and that in TPTs was TPTF (1.0)$\geq$TPTC(1.1)>TPTH(1.6). Triphenyltin compounds were slightly higher toxic than tributyltins. The toxicity is likely to depend on alkyl or aryl group other than halogen or the other substituted radicals.

유기주석화합물은 독성이 강하고 잔존력이 감하여 수계환경으로 유입되면 해양생태계에 오랫동안 영향을 미친다 이들 화합물이 해양생불에 미치는 영향에 관해서는 어류나 패류 등의 산업적 가치가 큰 생물종을 대상으로 한 연구는 적지 않지만, 해양생태계에서 먹이사슬의 가장 하부에 위치하며 기초생산을 담당하는 플랑크톤류에 미치는 영향에 관해서는 잘 알려져 있지 않다. 따라서 본 연구에서는 TBT류의 TBTC, TBTO, TBTA, TBTB를 비롯하여 TPT류의 TPTC, TPTF, TPTH가 기수산 rotifer의 생존에 미치는 독성(96 hr-LC$_{50}$)을 조사.비교하였다. 그 결과, TBT류에서는 TBTA(1.1 ppb)가 가장 강하였고 TBTC (2.0), TBTB (3.3), TBTO (5.6)의 순이었으며, TPT류에서는 TPTF (1.0), TPTC (1.1), TPTH(1.6)의 순이었다. 이 결과는 TPT류가 전반적으로 TBT류에 비해 독성이 강하다는 것을 보여준다.다.

Keywords

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