Sanjeeta Bishwas*
Department of Zoology, B. N. Mandal University, Madhepura, Bihar, India
Received : 08th January, 2020 ; Revised : 15th February, 2020
Abstract : Discharge of heavy metals into aquatic environment from various sources, even below permissible levels, creates health hazards in aquatic organisms. The persistence and ubiquitous nature of these pollutants coupled with their tendency to accumulate in organisms ultimately produce toxic reactions in aquatic animals, especially fish. The heavy metal like cadmium, considered as one of the most toxic heavy metals.