Abstract
Neon tetras Paracheirodon innesi were exposed to various species of copper during exposures to evaluate the bioavailability of free copper (0 to 2 mg/l), copper apparently complexed to humic substances (0 to 160 mg/l), and copper adsorbed on kaolin clays (0 to 182 mg/l). The results of the experiments demonstrated that free copper is the most bioavailable form. Both humic substances and kaolin clay particulates reduced copper bioavailability to the fish. However, fish accumulated a fraction of copper complexed to humic substances and part of copper adsorbed on kaolin clays.
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Tao, S., Liang, T., Liu, C. et al. Uptake of Copper by Neon Tetras (Paracheirodon innesi) in the Presence and Absence of Particulate and Humic Matter. Ecotoxicology 8, 269–275 (1999). https://doi.org/10.1023/A:1008977131711
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DOI: https://doi.org/10.1023/A:1008977131711