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포식성 천적생물을 이용한 친환경 유해조류 제어기술 개발

Eco-friendly Control of Harmful Algal Bloom Species Using Biological Predators

  • 김석 (고려대학교 환경생태공학부) ;
  • 이창수 (전북대학교 생물공정공학과) ;
  • 보티타오 (전북대학교 생리활성소재과학과) ;
  • 한상일 (고려대학교 환경생태공학부) ;
  • 최윤이 (고려대학교 환경생태공학부)
  • Kim, Sok (Division of Environmental Science & Ecological Engineering, Korea University) ;
  • Lee, Changsu (Department of Bioprocess Engineering, Chonbuk National University) ;
  • Vo, Thi-Thao (Department of Bioactive Material Sciences, Chonbuk National University) ;
  • Han, Sang-Il (Division of Environmental Science & Ecological Engineering, Korea University) ;
  • Choi, Yoon-E (Division of Environmental Science & Ecological Engineering, Korea University)
  • 투고 : 2016.05.03
  • 심사 : 2016.06.22
  • 발행 : 2016.06.30

초록

본 연구에서는 동물플랑크톤인 Daphnia magna를 이용하여 유해조류인 Microcystis aeruginosa, Anabaena variabilis, Limnothrix planctonica에 대한 제어 가능성을 평가하였다. D. magna와 유해조류를 공생배양 시킨 경우, M. aeruginosa ($80.2{\pm}4.2%$), A. variabilis ($39.7{\pm}4.0%$) 그리고 L. planctonica ($25.9{\pm}10.9%$)의 순으로 조류 발생 억제효율을 보였다. 동물플랑크톤의 섭생에 의한 조류 제어 효과 이외에 D. magna의 대사/분비물질의 조류 제어 가능성을 확인할 수 있었다. D. magna를 배양한 배지를 유해조류 제어에 이용했을 때, M. aeruginosa와 A. variabilis에 대하여 각각 $24.9{\pm}9.9%$$8.9{\pm}4.0%$의 성장 억제효과를 확인할 수 있었다. 하지만, L. planctonica에 대한 성장 억제효과는 나타나지 않았다. 본 연구의 결과를 통하여 동물플랑크톤인 D. magna를 활용한 친환경적 유해조류 제어기술 개발이 가능할 것으로 판단된다.

This study presents the potentiality of harmful algal bloom (HAB) control through the zooplankton, Daphnia magna. In case of co-cultivated D. magna with cyanobacteriums (Microcystis aeruginosa, Anabaena variabilis, and Limnothrix planctonica), the D. magna showed the $80.2{\pm}4.2%$, $39.7{\pm}4.0%$, and $25.9{\pm}10.9%$ of control efficiency for M. aeruginosa, A. variabilis and L. planctonica, respectively. Furthermore, algal control was investigated by using supernatant including metabolite/secretion of D. magna. The algal control efficiencies of supernatant were recorded as $24.9{\pm}9.9%$ and $8.9{\pm}4.0%$ for M. aeruginosa and A. variabilis, respectively. From the results of present study, it may be possible to provide a feasible way for development of eco-friendly HAB control methods.

키워드

참고문헌

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