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한국하천호수학회 / v.41, no.3, 2008년, pp.294-300 
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두 삼림호수에 공존하는 동물플랑크톤종의 다른 안정동위원소비
( The Different Isotopic Signatures of Co-existing Zooplankton Species in Two Alpine Lakes ) |
| 이재용;김범철;길강숭인;일야수차; 강원대학교 환경과학과;강원대학교 환경과학과;교토대학교 필드과학교육연구센터;야마가타대학 물질생명화학과;
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| 초 록 |
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| The stable isotopes ratios ($delta^{13}C;and;delta^{15}N$) of two coexisting species of zooplankton (Daphnia longispina and Acanthodiaptomus pacificus) and POM were determined in two alpine lakes in Japan. The difference of $delta^{13}C$ between A. pacificus and D. longispina was 4.1$pm$0.9‰ in Lake Shirakoma, which was larger than in Lake Panke. Whereas the difference of $delta^{15}N$ between A. pacificus and D. longispina (2.6$pm$0.8‰) was larger in Lake Panke than in Lake Shirakoma. $delta^{13}C$ of POM (-26.6$pm$1.2‰) in Lake Shirakoma was different from those of zooplankton; it was heavier than those of D. longispina and A. pacificus by 3.7$pm$1.6‰ and 7.8$pm$1.0‰, respectively. Whereas $delta^{15}N$ of POM (2.0$pm$0.8‰) was similar with those of both A. pacificus and D. longispina. This implies that the two lakes may have different trophic structure and food sources for zooplankton, and each species are grazing on selectively different components of POM. The temporal variation of $delta^{13}C$ for each zooplankton species was associated with lipid contents of zooplankton in both lakes. The results showed that stable isotope composition of zooplankton can be an useful information for understanding energy pathways and trophic structures in lakes. |
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| 키워드 |
| isotopic signature;lipid;zooplankton species;trophic status; |
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한국하천호수학회지 / v.41, no.3, 2008년, pp.294-300
한국하천호수학회
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200833338919331)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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