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NTIS 바로가기海洋環境安全學會誌 = Journal of the Korean society of marine environment & safety, v.22 no.2, 2016년, pp.212 - 219
양한섭 (부경대학교 해양학과) , 전슬기 (부경대학교 해양학과) , 오석진 (부경대학교 해양학과)
The bioavailability of dissolved organic nitrogen (DON) by dominant species Chaetoceros debilis and Leptocylindrus danicus under dissolved inorganic nitrogen (DIN)-limited condition in the southwestern East Sea was conducted to assess the quantitative evaluation using growth kinetic experiment. Nitr...
핵심어 | 질문 | 논문에서 추출한 답변 |
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식물플랑크톤은 생장을 위해 무엇을 이용하는가? | , 2008; Hansell and Carlson, 2014). 일반적으로 식물플랑크톤은 생장에 DIN을 이용하지만, DIN이 제한된 환경에서는 다양한 형태의 DON을 가수분해하여 생장에 이용하며, 결국 종천이(species succession)를 유도하는 중요한 구성인자로 판단된다(Leong and Taguchi, 2004; Zhang et al., 2015). | |
용존 유기 질소은 어떤 경로를 통해 공급되는가? | , 1991). 이러한 DON은 식물플랑크톤 섭식과정, 배설물 및 담수와 대기 유입으로 공급된다(Bronk and Steinberg, 2008). 이 중 저분자 DON인아미노산(amino acid)과 요소(urea)는 식물플랑크톤의 생장에 중요한 질소 공급 인자로 알려져 있다(Antia et al. | |
영양염으로의 질소는 어떤 원소인가? | 영양염 중 질소(nitrogen)는 식물플랑크톤의 주요 생체 구성 성분이며 식물생장에 필수적인 원소이다(Ryther and Dunstan, 1971). 해양에서 질소는 용존 무기 질소(dissolved inorganic nitrogen; DIN)와 용존 유기 질소(dissolved organic nitrogen; DON) 로 구분되며, DIN은 질산염(nitrate; NO3--N), 아질산염(nitrite; NO2--N)과 암모늄(ammonium; NH4--N)이 포함되고, DON의 경우 다양한 분자량의 화합물이 존재하지만, 화학적 조성이 명확하게 잘 알려져 있지 않다(Antia et al. |
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