to evaluate the levels of cortisol, glucose and other possible indicators of goldfish, carassius auratus, in response to stress, in the first experiment, bisphenol a (0.5 mg/l), naphthalene (200 μg/l) and butachlor (60%) (0.28 µg/l) were added to the aquariums water for two weeks. in the second experiment, intra-peritoneal injections of bisphenol a, naphthalene and butachlor, with dose 50 mg/k...