eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2019-12-28 12 04 2049 2053 10.13005/bpj/1838 29931 article Rashmi N 1 Ranjitha T 2 Sharath Chandra SP 1 Department of Biochemistry, Government Science College, Hassan, India Department of Civil Engineering, LV Polytechnic College, Hassan, India The current literature surveyreviews the physiological and biochemical impact of chromium and their derivative across various fish species in aquatic ecosystem around the globe. Chroium and its derivatives such as sulphates, oxides, chlorides, nanoparticles etc have been found to have a deleterious effect on neurology, ionoregulatory, physiology, biochemistry, metabolism and histological parameters in fish. Different species of fish like Labeorohita, Channa punctatus, Danio rerio, Catla catla, Carassiusauratus and their reaction to titanium toxicity has been chiefly discussed in the review. In conclusion centered on studies accomplished by various research groups, we can infer that chromium and their derivatives pose analarming threat not only to fish, but also to ecology and environment. https://biomedpharmajournal.org/vol12no4/chromium-and-their-derivatives-causes-physiological-and-biochemical-modifications-in-diverse-fish-models-a-review/ Chromium Ecology Environment Fish Nanoparticles.