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题名: Establishment of two new morphometrical parameters of Craspedacusta (Limnomedusae : Olindidae) with their application in the species validation
作者: Gao Qian ; Zhang Li-Qiang ; Yao Wei-Jian ; Wang Gui-Tang ; Li Wen-Xiang ; Nie Pin
通讯作者: Gao Qian ; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Ecol and Biotechnol, Wuhan 430072, Peoples R China
刊名: Acta Hydrobiologica Sinica
发表日期: 2007
卷: 31, 期:1, 页:78-82
收录类别: 其他
英文摘要: here are still arguments on the validity of some Craspedacusta species. In the present study, C. sowerbyi C. kiatingi. C. sinensis and C. brevinema were compared by using the morphometry, including two new morphometrical parameters established and applied in the species validation, i.e. the density of tentacles and statocysts. The two parameters were calculated as the number of tentacles, and of statocysts in the medusa divided by the diameter of its umbrella. In addition, the correlation between pairs of morphological characters for the above four species were analyzed by using the Spearman rank correlation coefficient. C. brevinema and C. sinensis were similar in many aspects of their morphology and morphometrics; however, C. Kiatingi was Significantly different from C. sowerbyi, and also from C. sinensis in the two new morphometrical characters. Spearman correlation test indicated that either the number of tentacles or the number of statocysts was significantly positively correlated with the diameter of umbrella for the four Craspedacusta species. Significant positive correlations were found between the density of tentacles and of statocysts for the three species, i.e. C. sowerbyi I C. sinensis and C. brevinema. It is suggested that C. brevinema is probably a synonym of C. sinensis, and that C. kiatingi is a valid species. However, further study on the relationships and validity of Craspedacusta species and subspecies described in China, with modern molecular genetic approaches, is needed before any conclusive decisions can be made.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18303
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Recommended Citation:
Gao Qian; Zhang Li-Qiang; Yao Wei-Jian; Wang Gui-Tang; Li Wen-Xiang; Nie Pin.Establishment of two new morphometrical parameters of Craspedacusta (Limnomedusae : Olindidae) with their application in the species validation,Acta Hydrobiologica Sinica,2007,31(1):78-82
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