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NTIS 바로가기한국패류학회지 = The Korean journal of malacology, v.29 no.2, 2013년, pp.129 - 137
신윤경 (국립수산과학원 전략양식연구소 양식관리과) , 박정준 (국립수산과학원 전략양식연구소 양식관리과) , 임현식 (목포대학교 해양수산자원학과) , 이정식 (전남대학교 수산생명의학과)
This study was conducted to find out the changes of survivorship, respiration and organ structure of Mactra veneriformis exposed to copper (Cu). Experimental period was four weeks. Experimental groups were composed of one control condition and three copper exposure conditions (0.025, 0.050 and 0.100...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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구리는 필요한 영양소이지만 생물이 필요 이상의 농도에 노출될 경우 나타나는 현상은? | 구리는 모든 동식물의 정상적인 성장에 필요한 필수 영양소 이며 생태계에 정상적으로 존재하는 성분이지만 생물이 필요 이상의 농도에 노출될 경우 세포 내부의 구조 및 기능적 이상을 유발하거나 생체기능의 장애를 일으켜 생리적 활동에 부정적인 영향 미치기도 한다 (Sutherland and major, 1981). 최근 들어 구리는 양식어망의 부착생물 억제 또는 항균활성 (Park et al. | |
환경요인들의 영향으로 인해 생물이 받는 위해도를 평가하는 방법은? | 환경요인들의 영향으로 인해 생물이 받는 위해도를 평가하는 방법은 위험성 확인, 노출평가, 용량-반응 평가 및 위해도 결정의 주요 4단계이다 (NRC, 1983). 위와 같은 방법에 따라 위해도를 평가하기 위해서는 지표생물과 생물지표의 선정이 중요하다. | |
이매패류가 특정 지역의 오염상태를 알아보기 위한 지표종으로 많이 사용되는 이유는 무엇인가? | 지표생물 가운데 이매패류들은 주로 여과섭식에 의해 먹이를 섭이하기 때문에 환경오염원에 쉽게 노출된다. 또한 이동성이 낮아 일생동안 서식범위가 국한되어 있고, 체내로 유입된 오염원들의 축적은 용이하지만 체내에서 해독과 체외방출이 낮아 특정 지역의 오염상태를 알아보기 위한 지표종으로 많이 사용되고 있다 (Marin et al., 2006; Schintu et al. |
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