https://scholars.lib.ntu.edu.tw/handle/123456789/87056
標題: | Linking valve closure behavior and sodium transport mechanism in freshwater clam Corbicula fluminea in response to copper | 作者: | Liao, Chung-Min Lin, Chieh-Ming Jou, Li-John Chiang, Kuo-Chin |
關鍵字: | Biotic ligand model; Clam; Copper; Corbicula fluminea; Sodium transport; Valve closure behavior | 公開日期: | 2007 | 起(迄)頁: | 656-667 | 來源出版物: | Environmental Pollution | 摘要: | The purpose of this study is to develop a mechanistic model to describe a conceptually new "flux-biological response" approach based on biotic ligand model (BLM) and Michaelis-Menten (M-M) kinetics to allow the linkage between valve closure behavior and sodium (Na) transport mechanism in freshwater clam Corbicula fluminea in response to waterborne copper (Cu). We test the proposed model against published data regarding Na uptake kinetics in rainbow trout and Na uptake profile in C. fluminea, confirming that the predictive model is robust. Here, we show that the predicted M-M maximum Cu internalization flux in C. fluminea is 0.369 μmol g-1 h-1 with a half-saturation affinity constant of 7.87 × 10-3 μM. Dynamics of Na uptake and valve closure daily rhythm driven by external Cu can also be predicted simultaneously. We suggest that this "Na transport-valve closure behavior" approach might provide the basis of a future design of biomonitoring tool. © 2006 Elsevier Ltd. All rights reserved. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/176029 | DOI: | 10.1016/j.envpol.2006.09.017 | SDG/關鍵字: | Bioaccumulation; Copper; Ecosystems; Ligands; Sodium; Biomonitoring; Biotic ligand model; Clam; Corbicula fluminea; Sodium transport; Valve closure behavior; Biodiversity; copper; sodium; biological uptake; biomonitoring; bivalve; copper; freshwater ecosystem; ligand; model; salmonid; sodium; analytic method; animal experiment; article; biological monitoring; biotic ligand model; clam; controlled study; Corbicula fluminea; Michaelis constant; nonhuman; sodium transport; valve; Algorithms; Animals; Biological Availability; Biological Transport; Copper; Corbicula; Environmental Exposure; Gills; Ligands; Mathematics; Models, Biological; Sodium; Time Factors; Water Pollutants, Chemical; Bivalvia; Corbicula fluminea; Oncorhynchus mykiss |
顯示於: | 生物環境系統工程學系 |
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