Effects of fuel oil on sea catfish: feeding activity and cardiac responses

Although fish have been used repeatedly in bioassays of toxicity of petroleum oils, little information is available for marine species (Nelson-Smith 1970, 1972). Anderson and colleagues ( 1974) studied the effects of crude and fuel oil on survival of estuarine species. Using a marine catfish readily available, the effects of a fuel oil on survival, feeding behavior and heart rate are examined. The latter has frequently been used as a sensitive test for environmental stress.