桃花水母及其生态学研究进展

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Abstract

Craspedacusta is one kind of age-old, rare and precious coelenterates which is close to extinction. It is the lowestrank invertebrate on the globe whose life history has been over a few hundred million years. Not like the other coelenterates, itlives in freshwater. It is the key species in the evolution process, and of great value in ecology,human culture, learning andenjoyment. The habitat of Craspedacusta will be inundated with the three gorges reservoir's storing water. A crisis of extinctionis facing Craspedacusta without its habitat. The extinction of this valuable species does not merely mean the loss of the diversityof species in the world but also means permanent loss of thc cultural resource of "oeach blossom fish" which was recorded in Chinese history. People know little of Craspedacusta because it is rare and the period of its appearance is brief.The biologicalcharacteristics, appearance time, species, distribution and status of studies on Craspedacusta were summarized systematically,and the meanings of conserving and studying craspedacusta were also revealed.

Key words： Craspedacusta Biological characteristics Advance of study Species conservation

Received: 25 February 2004

PACS:

S917.4

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	Articles by authors
	LIU Ya-yun
	CHEN Gui-zhu

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LIU Ya-yun,CHEN Gui-zhu. Advance in the study on the status and ecology of Craspedacusta[J]. , 2004, 23(1): 73-76.

URL:

http://journal15.magtechjournal.com/Jwk_stkx/EN/ OR http://journal15.magtechjournal.com/Jwk_stkx/EN/Y2004/V23/I1/73

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