PMID: 2484611Jul 1, 1989Paper

Cadmium, mercury, and lead effects on gill tissue of freshwater crayfish Procambarus clarkii (Girard)

Biological Trace Element Research
A TorreblancaJ Díaz-Mayans

Abstract

Intermolt adult crayfish P. clarkii were used for this work. After acclimatization to laboratory conditions crayfish were exposed to sublethal concentrations of cadmium, mercury, and lead for 96 h. Gills of control and exposed crayfish were removed and ATPase activity and oxygen uptake rate were determined. Structural damage of gill filaments was also observed. Gill tissue respiration rates were measured for individual crayfish using a Gilson differential respirometer. Lead causes a decrease of gill oxygen uptake, but neither cadmium nor mercury seems to affect it at the concentrations employed. Although all metals studied alter gill filament structure, lead damage is the most apparent. In the same way, significant differences in gill ATPase activity owing to metal exposure were only observed in lead treated crayfish.

References

Sep 1, 1979·Bulletin of Environmental Contamination and Toxicology·R K Tucker
Jan 1, 1985·Comparative Biochemistry and Physiology. C, Comparative Pharmacology and Toxicology·P Bjerregaard, T Vislie
Sep 1, 1988·Bulletin of Environmental Contamination and Toxicology·A PastorF Hernandez
Nov 1, 1986·Bulletin of Environmental Contamination and Toxicology·J Díaz-MayansA Torreblanca

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