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学科主题: Environmental Sciences; Toxicology; Water Resources
题名: A phototaxis inhibition assay using barnacle larvae
作者: R. S. S. Wu ; P. K. S. Lam ; B. S. Zhou
关键词: phototactic response ; phototaxis ; larvae ; screening test ; barnacle ; phenol ; cadmium
刊名: ENVIRONMENTAL TOXICOLOGY AND WATER QUALITY
发表日期: 1997
卷: 12, 期:3, 页:231-236
收录类别: SCI
部门归属: CITY UNIV HONG KONG,DEPT BIOL & CHEM,KOWLOON,HONG KONG; CHINESE ACAD SCI,INST HYDROBIOL,WUHAN,PEOPLES R CHINA
摘要: The effects of sublethal concentrations of phenol and cadmium on the phototactic responses of the stage II nauplii of the barnacle Balanus amphitrite were investigated. Increased toxicant concentrations caused a reduction in phototactic responses. Balanus amphitrite nauplii exposed to nominal phenol concentrations of 100 ppm and higher for 1-12 h failed to exhibit phototactic responses, while longer exposure times of 24 and 48 h reduced the lowest observable effect concentration (LOECs) to 80 and 60 ppm, respectively. For cadmium, the LOECs, based on nominal concentrations, for B. amphitrite following 1, 6, 12, 24, and 48 h exposures were 20, 4.5, 4.0, 1, and 0.75 ppm, respectively. The LOECs can be significantly reduced by increasing the duration of exposure to the toxicants. A good relationship exists between the phototactic response and toxicant concentration as well as exposure time. Results of this study indicate that the toxicant-induced reduction in phototactic responses of barnacle larvae can be used in a sensitive, rapid screening test for ecotoxicological assessments. (C) 1997 by John Wiley & Sons, Inc.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10262
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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.A phototaxis inhibition assay using barnacle larvae,ENVIRONMENTAL TOXICOLOGY AND WATER QUALITY,1997,12(3):231-236
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