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学科主题: Ecology; Limnology
题名: Trophic relationship between the parasitic isopod ichthyoxenus japonensis and the fish carassius auratus auratus as revealed by stable isotopes
作者: Xu, Jun; Zhang, Min; Xie, Ping
通讯作者: Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: FOOD-WEB STRUCTURE ; DELTA-N-15 ; LAKE ; DELTA-C-13 ; CARBON ; FRACTIONATION ; NITROGEN ; HOST ; ENRICHMENT ; PATTERNS
刊名: JOURNAL OF FRESHWATER ECOLOGY
发表日期: 2007-06-01
卷: 22, 期:2, 页:333-338
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China; Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology ; Limnology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: Stable carbon and nitrogen isotope analysis was used to investigate the host-parasite trophic relationship between the parasitic isopod Ichthyoxenus japonensis and one of its freshwater fish host Carassius auratus auratus from Lake Fuxian, China. No significant differences in delta C-13 and delta N-15 were observed between the heterosexual pairs of I. japonensis in the same host. delta C-13 and delta N-15 of I. japonensis were significantly lower than those of its host fish, and the isotopic ratios of the isopod increased with the increase of host fish isotopic signatures. Unlike isotopic fractionation patterns generally observed among consumers and their diets, isopod parasite was delta C-13 and N-15 depleted relative to the muscle tissue of this host fish. Differential isotopic fractionation patterns in the isopod parasite and the fish may be attributed to differences in parasite and host metabolism.
英文摘要: Stable carbon and nitrogen isotope analysis was used to investigate the host-parasite trophic relationship between the parasitic isopod Ichthyoxenus japonensis and one of its freshwater fish host Carassius auratus auratus from Lake Fuxian, China. No significant differences in delta C-13 and delta N-15 were observed between the heterosexual pairs of I. japonensis in the same host. delta C-13 and delta N-15 of I. japonensis were significantly lower than those of its host fish, and the isotopic ratios of the isopod increased with the increase of host fish isotopic signatures. Unlike isotopic fractionation patterns generally observed among consumers and their diets, isopod parasite was delta C-13 and N-15 depleted relative to the muscle tissue of this host fish. Differential isotopic fractionation patterns in the isopod parasite and the fish may be attributed to differences in parasite and host metabolism.
关键词[WOS]: FOOD-WEB STRUCTURE ; DELTA-N-15 ; LAKE ; DELTA-C-13 ; CARBON ; FRACTIONATION ; NITROGEN ; HOST ; ENRICHMENT ; PATTERNS
语种: 英语
WOS记录号: WOS:000246088600019
ISSN号: 0270-5060
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8604
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China

Recommended Citation:
Xu, Jun; Zhang, Min; Xie, Ping.Trophic relationship between the parasitic isopod ichthyoxenus japonensis and the fish carassius auratus auratus as revealed by stable isotopes,JOURNAL OF FRESHWATER ECOLOGY,2007,22(2):333-338
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