Effect of Metal Toxicity in Cyprinus carpio Linnaeus and Schizothorax niger Heckel with emphasis on Biochemical and Histopathological Parameters.

Due to scanty information regarding the metal toxicity in water bodies of Kashmir valley and their effects on the aquatic fauna, the present study was designed with the following objectives: 1) To study the toxicity of some metals viz. copper, zinc, iron, and manganese in Dal lake and River Jhelum. 2) To study the concentration of these metals through Atomic absorption spectrophotometer in various organs/tissues viz. gills, liver, kidneys, and muscles of Schizothorax niger and Cyprinus carpio spp. 3) To study the subsequent effects of metals on biochemical parameters viz. total protein, albumin, globulin, blood glucose, urea, serum creatinine and cholesterol in both the fishes. 4) To study the subsequent effects of these metals, on the histomorphology of gills, liver, kidney and muscles of both the fishes.Digital copy of Thesis.University of Kashmir

Comparative Biochemical Evaluation of Schizothorax niger and Cyprinus carpio from River Jhelum of Kashmir Valley

ABSTRACT The present study was conducted to evaluate the comparative biochemical profile of Schizothorax niger (endemic fish) and Cyprinus carpio (exotic fish) from the River Jhelum seasonally for a period of two years. .98 mg/dl). In both the fish hosts the higher biochemical values were recorded in the summer season and the lower values in the winter season during the study period. The seasonal differences in the biochemical parameters of the fish can be attributed to the water pollution of River Jhelum by various contaminants including metals and the comparative higher values in Schizothorax niger can be speculated to be due to the higher sensitivity of the host. From the present study it may be inferred that the change in biochemical parameters of the native fish would be one of the reasons for its decline from fresh water resources of the Kashmir Valley