1 INTRODUCTION 2 FISH AS MODEL ORGANISM FOR CANCER RESEARCH 3. ENVIRONMENTAL POLLUTANTS AS FISH CARCINOGENS 4. FISH AS THE BIOMARKERS OF ENVIRONMENTAL POLLUTANTS 5. COMMON CANCERS IN FISH 6. SPECIAL EMPHASIS ON CHEMICALS/POLLUTANTS INDUCED SKIN AND LIVER CANCERS IN FISH 7. CONTAMINATED FISH HARMFUL TO HUMAN HEALTH