Linking valve closure behavior and sodium transport mechanism in freshwater clam Corbicula fluminea in response to copper
Resource
Environmental Pollution 147 (3): 656-667
Journal
Environmental Pollution
Pages
656-667
Date Issued
2007
Date
2007
Author(s)
Abstract
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.
Subjects
Biotic ligand model; Clam; Copper; Corbicula fluminea; Sodium transport; Valve closure behavior
SDGs
Other Subjects
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
Type
journal article
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