Kidney activity increases in copper exposed goldfish ( Carassius auratus auratus )
Copyright policy )Kidney activity increases in copper exposed goldfish ( Carassius auratus auratus )
In the present study, the effect of copper was examined in the common goldfish (Carassius auratus auratus). Fish were fasted and exposed to either a high (0.84μM), a low (0.34μM) or a control copper concentration (0.05μM) for 1 and 7days. Swimming performance was not affected by either fasting or copper exposure. Food deprivation alone had no effect on ionoregulation, but low plasma osmolality levels and plasma Na+ were noticed in fasted fish exposed to Cu for 7days. Both gill Na+/K+-ATPase and H+-ATPase activities were undisturbed, while both kidney ATPase activities were up-regulated when challenged with the high Cu levels. Up-regulated kidney ATPase activities likely acted as compensatory strategy to enhance Na+ reabsorption. However, this up-regulation was not sufficient to restore Na+ to control levels in the highest exposure group.
- Universiti Malaysia Terengganu Malaysia
- University of Messina Italy
- University of Antwerp Belgium
Fish Proteins, Gills, Copper Sulfate, Time Factors, Behavior, Animal, Dose-Response Relationship, Drug, ATPase,Heavy metal, Ionoregulation , Osmolality, Swimming performance, Osmolar Concentration, Sodium, Kidney, Up-Regulation, Proton-Translocating ATPases, Goldfish, Animals, Sodium-Potassium-Exchanging ATPase, Swimming
Fish Proteins, Gills, Copper Sulfate, Time Factors, Behavior, Animal, Dose-Response Relationship, Drug, ATPase,Heavy metal, Ionoregulation , Osmolality, Swimming performance, Osmolar Concentration, Sodium, Kidney, Up-Regulation, Proton-Translocating ATPases, Goldfish, Animals, Sodium-Potassium-Exchanging ATPase, Swimming
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