Performance of a simple Closed Aquatic Ecosystem (CAES) in space

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	Performance of a simple Closed Aquatic Ecosystem (CAES) in space
	Wang, GH ; Li, GB ; Hu, CX ; Liu, YD ; Song, LR ; Tong, GH ; Liu, XM ; Cheng, ET
	2004
会议名称	2nd World Space Congress/34th COSPAR Scientific Assembly
会议日期	OCT 10-19, 2002
会议地点	HOUSTON, TX
关键词	LIFE-SUPPORT GREEN-ALGA SYSTEM MICROGRAVITY CEBAS MODULES EARTH
页码	1455-1460
通讯作者	Liu, YD, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
中文摘要	A simple Closed Aquatic Ecosystem (CAES) consisting of single-celled green algae (Chlorella pyrenoidosa, producer), a spiral snail (Bulinus australianus, consumer) and a data acquisition and control unit was flown on the Chinese Spacecraft SHENZ-HOU-II in January 2001 for 7 days. In order to study the effect of microgravity on the operation of CAES, a 1g centrifuge reference group in space, a ground 1g reference group and a ground 1g centrifuge reference group (1.4 g group) were run concurrently. Real-time data about algae biomass (calculated from transmission light intensity), temperature, light and centrifugation of the CAES were logged at minute intervals. It was found that algae biomass of both the microgravity group and the ground 1g centrifuge reference group (1.4 g) fluctuated during the experiment, but the algae biomass of the 1g centrifuge reference group in space and the ground 1g reference group increased during the experiment. The results may be attributable to influences of microgravity and 1.4 g gravity on the algae and snails metabolisms. Microgravity is the main factor to affect the operation of CAES in space and the contribution of microgravity to the effect was also estimated. These data may be valuable for the establishment of a complex CELSS in the future. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
收录类别	SCI
会议主办者	Comm Space Res
会议录	SPACE LIFE SCIENCES: RADIATION RISK ASSESSMENT AND RADIATION MEASUREMENT IN LOW EARTH ORBIT
语种	英语
WOS记录号	WOS:000225592600029
内容类型	会议论文
源URL	[http://ir.ihb.ac.cn/handle/342005/11801]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_会议论文
推荐引用方式 GB/T 7714	Wang, GH,Li, GB,Hu, CX,et al. Performance of a simple Closed Aquatic Ecosystem (CAES) in space[C]. 见:2nd World Space Congress/34th COSPAR Scientific Assembly. HOUSTON, TX. OCT 10-19, 2002.