A Simple Fish Physiological Model for Radioecologists Exemplified for super(54)Mn Direct Transfer and Rainbow Trout (Oncorhynchus mykiss W.)

• Published in: Journal of environmental radioactivity Vol. 49; no. 1; p. 35
• Main Authors: Garnier-Laplace, Jacqueline, Adam, Christelle, Lathuilliere, Thierry, Baudin, Jean-Pierre, Clabaut, Mathieu
• Format: Journal Article
• Language: English
• Published: 01.01.2000
• Subjects: manganese-54; Oncorhynchus mykiss
• ISSN: 0265-931X
• DOI: 10.1016/S0265-931X(99)00095-8

Physiological, anatomical, and thermodynamic parameters serve as the basis of a simple kinetic model for radionuclide transfer to freshwater fish. This new approach for radioecology is illustrated in a study of manganese 54 direct transfer to young rainbow trout. The model was calibrated on uptake and depuration kinetics data documented for 14 organs/tissues during a 12-week trial. Partition coefficients and the residence time of Mn were 161 and 4 h, 87 and 1.5 d, and 1465 and 14 d, respectively, for input, distribution/reservoir, and excretional function compartments. A steady state concentration factor of 8 l/kg wet weight was determined and found to approach those reported in the literature.