https://scholars.lib.ntu.edu.tw/handle/123456789/350865
標題: | Valve movement response of the freshwater clam Corbicula fluminea following exposure to waterborne arsenic | 作者: | Liao, C.-M. Jau, S.-F. Lin, C.-M. Jou, L.-J. Liu, C.-W. Liao, V.H.-C. Chang, F.-J. Liao, Chung-Min VIVIAN LIAO Jau, Sheng-Feng Lin, Chieh-Ming Jou, Li-John Liu, Chen-Wuing Liao, Vivian Hsiu-Chuan Chang, Fi-John |
關鍵字: | Arsenic; Biomonitor; Corbicula fluminea; Freshwater clam; Toxicology; Valve daily activity | 公開日期: | 2009 | 卷: | 18 | 期: | 5 | 起(迄)頁: | 567-576 | 來源出版物: | Ecotoxicology | 摘要: | We developed an inductance-based valvometry technique as a detection system to measure the valve daily activity in freshwater clam Corbicula fluminea in response to waterborne arsenic. Our findings reveal that C. fluminea experiences a valve opening in the absence of arsenic predominantly in the morning hours (03:00-08:00) with a mean daily opening/closing period of 21.32 (95% CI: 20.58-22.05) h. Amplification of daily activity occurred in the presence of arsenic. Behavioral toxicity assays revealed arsenic detection thresholds of 0.60 (95% CI: 0.53-0.66) mg l-1 and 0.35 (95% CI: 0.30-0.40) mg l-1 for response times of 60 and 300 min, respectively. The proposed valve daily activity model was linked with response time-specific Hill dose-response functions to predict valve opening/closing behavior in response to arsenic. The predictive capabilities were verified satisfactory with the measurements. Our results implicate a biomonitoring system by valve daily activity in C. fluminea to identify safe water uses in areas with elevated arsenic. © 2009 Springer Science+Business Media, LLC. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-67650717619&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/350865 |
DOI: | 10.1007/s10646-009-0314-5 | SDG/關鍵字: | arsenic; fresh water; arsenic; bioassay; biomonitoring; bivalve; dose-response relationship; measurement method; movement; pollution effect; pollution exposure; toxicity test; article; behavior; biological monitoring; Corbicula; Corbicula fluminae; exposure; movement (physiology); nonhuman; physical activity; prediction; priority journal; response time; toxicity testing; water pollution; Animals; Arsenic; Behavior, Animal; Corbicula; Environmental Monitoring; Periodicity; Water Pollutants, Chemical; Bivalvia; Corbicula fluminea |
顯示於: | 生物環境系統工程學系 |
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