International Journal of
Fisheries and Aquaculture

  • Abbreviation: Int. J. Fish. Aquac.
  • Language: English
  • ISSN: 2006-9839
  • DOI: 10.5897/IJFA
  • Start Year: 2010
  • Published Articles: 223

Full Length Research Paper

Evaluation of physicochemical parameters of waste water from rainbow trout fish farms and their impacts on water quality of Koohrang stream – Iran

  Firooz Fadaeifard1*, Mehdi Raissy1, Mostafa Faghani2, Alireza Majlesi3 and Gholamhossein Nodeh Farahani4
  1Department of Aquatic Animal Disease and Health, Islamic Azad University, Shahrekord Branch, Shahrekord – Iran. 2Department of Animal Science, Islamic Azad University, Shahrekord Branch, Shahrekord – Iran. 3Faculty of Veterinary Medicine, Islamic Azad University, Shahrekord Branch, Shahrekord – Iran. 4Department of Chemistry, Islamic Azad University, Shahrekord Branch, Shahrekord – Iran.
Email: [email protected]

  •  Accepted: 25 July 2012
  •  Published: 30 September 2012

Abstract

 

Physicochemical parameters of rainbow trout farm water were evaluated to assess the potential of fish farm effluents on stream water quality. Seven fish farms were selected at Rostamabad region located on 70 km at south-west of Shahrekord-Iran. Water samples were collected from fish farms inlet and outlet at first and second sampling point. Significant differences were observed in some water factors such as total hardness, total dissolved solid, total suspended solid, COD, BOD5, dissolved oxygen, phosphate, nitrite, nitrate and total ammonia between inlet and outlet water of fish farms where as there were no significant changes in pH, sodium chloride and water temperatures. All of the water factors because of self-purification potential of the stream were in desirable amounts in third sampling point. Feasibility study carried out to assess the distance for making consecutive fish farm along the stream. It was observed that it is possible to make consecutive fish farms at around 1500 m distance but it is depended on stream water discharge and self-purification of the stream.

 

Key words: Water pollution, trout farm effluents, environmental impact, Koohrang stream.