The toxic effect of pollutants in the aquatic environment on the kidney and blood picture of rabbit fish Siganus rivulatus (Forskal)‎ from the Red Sea, Jeddah, Saudi Arabia

الملخص EN

The present study was carried out to document possible histopathological changes in the kidney and blood of the fish Siganus rivulatus.

The tissue change is thought after reported changeable in water quality due to industrial effluents discharges and accumulation of some heavy metals in the Red Sea coast water at Jeddah, Saudi Arabia.

The majority of fish examined showed some forms of lesions in kidney and blood.

In kidney such lesions include hyaline droplets degeneration, separation of the tubular epithelium from their basement membrane and tubular vacuolization, reduction of haemopoietic tissue, granuloma inflammation lymphocytic infilteration and hyalinization of the glomeruluss and Bowmans capsule.

These degenerative changes indicate impairment of normal kidney functions including blood picture and formation.

Also, decrease in hemoglobin content, total erythrocyte count and increase in granular leukocytes were clearly detected in blood samples of the majority of Siganus rivulatus examined.

Pathological alterations of erythrocytes in examined blood smears included deformation sticking, lysis and abnormal presence of ghost, senile and blast cells were clearly observed.