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A phototaxis inhibition assay using barnacle larvae
R. S. S. Wu; P. K. S. Lam; B. S. Zhou
1997
Source PublicationENVIRONMENTAL TOXICOLOGY AND WATER QUALITY
Volume12Issue:3Pages:231-236
AbstractThe 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.
KeywordPhototactic Response Phototaxis Larvae Screening Test Barnacle Phenol Cadmium
DepartmentCITY UNIV HONG KONG,DEPT BIOL & CHEM,KOWLOON,HONG KONG; CHINESE ACAD SCI,INST HYDROBIOL,WUHAN,PEOPLES R CHINA
Subject AreaEnvironmental Sciences ; Toxicology ; Water Resources
Indexed BySCI
Language英语
WOS IDWOS:A1997XM62000005
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10262
Collection期刊论文
Recommended Citation
GB/T 7714
R. S. S. Wu,P. K. S. Lam,B. S. Zhou. A phototaxis inhibition assay using barnacle larvae[J]. ENVIRONMENTAL TOXICOLOGY AND WATER QUALITY,1997,12(3):231-236.
APA R. S. S. Wu,P. K. S. Lam,&B. S. Zhou.(1997).A phototaxis inhibition assay using barnacle larvae.ENVIRONMENTAL TOXICOLOGY AND WATER QUALITY,12(3),231-236.
MLA R. S. S. Wu,et al."A phototaxis inhibition assay using barnacle larvae".ENVIRONMENTAL TOXICOLOGY AND WATER QUALITY 12.3(1997):231-236.
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