Taxonomy and Ecology of Euglenoids (Euglenophyceae) and Their Application to Environmental Education

유글레나조류의 분류 및 생태와 환경 교육

  • 김준태 (서산여자고등학교, 충남대학교 자연과학대학 생물학과) ;
  • 부성민 (충남대학교 자연과학대학 생물학과)
  • Published : 2000.12.01

Abstract

Euglenoids occurring in freshwaters are indicator organisms to be used for assessing water quality and applying to environmental education. One hundred sixty eight taxa of euglenoids belonging to three orders, four families and nine genera occur in various waters, especially in eutrophicated and polluted places in Korea. Members of Euglena and Strombomonas are abundant in urban drainages and old ponds, and those of Trachelomonas, Phacus, and Lepocinclis often occur in stagnant waters such as natural wetlands and old swamps. Population size of some euglenoids is significantly correlated to nitrogenous nutrients. Euglena caudata, E. doses, E. ehrenbergii, E. haemichromata, E. geniculata, E. viridis, Lepocinclis ovum, Strombomonas urceolata, Phacus trypanon, Trachelomonas hispida, and T volvocina cells in Korea bloomed in winter and spring, when other phytoplanktonic algae greatly decrease. Blooming of euglenoids indicates tolerance to pollutants and positive selection as a result of competition with other phytoplankton species. We developed a web site on green euglenoids (Yahoo. com: Science/ Biology/ Botany/ Phycology/ Biology of Green Euglenoids), which may be use d for cyber education of water environment. We also presented a method for assessing water quality using diversity and population size of euglenoids, which is considered to be suitable for environmental education of polluted waters.

본 논문은 유글레나조류의 분류 및 생태에 관한 선행된 연구결과들을 종합 정리하고, 이를 환경교육에 접목하기 위한 것이다. 유글레나조류는 편모가 1-4개이며 다양한 수계에서 플랑크톤으로 생활하는 단세포 미세조류로서, 우리나라 전역에서 채집 조사된 종류는 종 하위 분류군을 포함하여 3목 4과 9속 168 분류군으로 정리된다. Euglena속과 Strombomonas속은 유기물 오염이 심한 도시 하천과 연못 등에 번무하였으며, Trachelomonas, Phacus, Lepocinclis속은 자연늪이나 오래된 연못과 같은 정체 수계에 많이 출현하였다. 유글레나조류의 개체군 크기는 질산염 등의 질소성 영양염과 유의한 상관관계를 보였다. Euglena caudata, E. deses, E. ehrenbergii, E. haemichromata, E. geniculata, E. viridis, Lepocinclis ovum, Strombomonas urceolata, Phacus trypanon, Trachelomonas hispida, T. volvocina 등은 주로 겨울과 봄철에 대발생을 하였다. 저자들은 유글레나조류를 환경교육의 적정생물의 하나로 인식하고, 그 기본자료로서 웹사이트(Yahoo. com: Science/ Biology/ Botany/ Phycology /Biology of Green Euglenoids)를 개발하고, 유글레나조류의 출현종과 개체수에 근거하여 수환경을 평가하는 새로운 방안을 제시하였다. 유글레나조류의 분류 및 생태에 관한 충분한 이해에 입각한 수질의 평가는 기존의 물리ㆍ화학적 자료에 근거한 평가와 함께 환경교육의 주요 자료와 정보로 활용할 수 있으며, 수환경을 바르게 이해하는데 크게 기여할 것이다.

Keywords

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