International Journal of
Biodiversity and Conservation

  • Abbreviation: Int. J. Biodivers. Conserv.
  • Language: English
  • ISSN: 2141-243X
  • DOI: 10.5897/IJBC
  • Start Year: 2009
  • Published Articles: 679

Full Length Research Paper

Haematological studies of Oreochromis niloticus exposed to diesel and drilling fluid in Lagos, Nigeria

Saliu Joseph Kayode* and Salami Adekunle Shamusideen
Department of Zoology, University of Lagos, Akoka, Lagos.
Email: [email protected]

  •  Accepted: 15 March 2010
  •  Published: 31 May 2010

Abstract

 

Haematological changes in Oreochromis niloticus after exposure to diesel (23.4 mg/L) and drilling fluid (492 mg/L) for 28 days was investigated. The blood parameters of O. niloticusrevealed a significant decrease in haemoglobin only in fish exposed to drilling fluid and mean cellular volume (MCV), in both diesel and drilling fluid. Blood parameters of the fish such as mean cellular haemoglobin (MCH) and mean cellular haemoglobin concentration (MCHC) increased significantly in both treatments. Significant increase in thrombocytes was also observed although only in fishes exposed to diesel. Diesel and drilling fluid evoked significant changes in the haematological parameters of O. niloticus, a fish that has great potentials in the culture fishery of Nigeria.

 

Key words:  Haematology, Oreochromis niloticus, diesel, drilling fluid, Nigeria,

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This article is published under the terms of the Creative Commons Attribution License 4.0

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