Journal of
Environmental Chemistry and Ecotoxicology

  • Abbreviation: J. Environ. Chem. Ecotoxicol.
  • Language: English
  • ISSN: 2141-226X
  • DOI: 10.5897/JECE
  • Start Year: 2009
  • Published Articles: 197

Full Length Research Paper

Acute toxicity and behavioral response of freshwater fish, Mystus vittatus exposed to pulp mill effluent

A. Mishra1, C. P. M. Tripathi2, A. K. Dwivedi3 and V. K. Dubey3*
  1Aquatic Toxicology Division, IITR Lucknow, Uttar Pradesh, India. 2D. D. U. Gorakhpur University, Gorakhpur, India. 3National Bureau of Fish Genetic Resources, Canal Ring Road, PO, Dilkusha, Lucknow-26002, Uttar Pradesh, India.
Email: [email protected]

  •  Accepted: 03 April 2011
  •  Published: 30 June 2011

Abstract

 

The present study deals with the acute toxicity (LC50 evaluation) of paper mill effluent to a freshwater fish, Mystus vittatus. A monthly record covering all the spawning season (pre-spawning phase, spawning phase and post-spawning phase) was evaluated at different exposure periods (24-, 48-, 72- and 96-h) using the whole paper mill effluent. Annual variation in LC50 values in relation to annual breeding cycle and water temperature were also taken into consideration. A well marked variation in the LC50 values in different exposure periods as well as in various months of the spawning phases of the test fish were observed.

 

Key words: Acute toxicity, paper mill effluent, annual variation, spawning phases.