Sublethal effects of mixtures of copper and ammonia on selected biochemical and physiological parameters in the catfish Heteropneustes fossilis (bloch)

Assessment of heavy metals (Cu, Ni, Fe, Co, Mn, Cr, Zn) in rivulet water, their accumulations and alterations in hematology of fish Channa punctatus

“…The oxygen carrying capacity was also low in C. punctatus because it depends on Hb content of fish. Other workers also reported the decrease of oxygen carrying capacity in fishes such as H. fossilis exposed to mixture of Cu and NH 3 (James and Sampath, 1995), Oreochromis mossambicus exposed to copper and zinc (Sampath et al, 1998). This decline could be attributed due to the fact that heavy metals damage the structure of RBC consequently instead of four, less molecules of oxygen bind to hemoglobin.…”

Comparative toxicity of Butachlor, Imidacloprid andSodium fluoride on protein profile of the walking catfish Clarias batrachus

“…Radhaiah et al, (1987) observed decreased carbohydrate content in heptachlor intoxicated fish Tilapia mossambica and stated this may be due to the rapid utilization of carbohydrates by the tissue possibly to overcome the pesticides induced stress. James and Sampath (1995) observed decreased liver glycogen in the Heteropneustes fossilis (Bloch) under mixtures of copper and ammonia and reported glycogenolysis releasing glucose in to the circulatory system to meet increased energy demand during stress conditions Susan et al, (1999) observed drastic decreased glycogen content in liver of Catla catla under fenvalerate toxicity stress. Rawat et al, (2002) have reported continuous decrease in quantity of glycogen in the liver of Heteropneustes fossilis exposed to endosulfan.…”

Impact of Heavy Metal Toxicity on Hematology and Glycogen Status of Fish: A Review

“…According to Christensen et al [17] hemoglobin value of many species of fish was reported to be a useful index of health. Hemoglobin is a very important component of erythrocytes which plays the important role in transport of the oxygen in blood [8]. Generally, the impaired erythropoiesis may cause anemia.…”

“…Even at very low concentration heavy metals (Cu, Ni, Fe, Co, Mn, Cr, Zn, Hg, Cd, Pb) induce changes in morphology, physiological and biochemical parameters in fish. Such effects besides including decrease in immunity [7], changes in behavior, growth, digestive enzyme activities [2], efficiency of food assimilation [8], also affect state of carbohydrate metabolism [9][10][11]. However, little is known about the uptake of heavy metals through the skin.…”