Acute toxicity of the root extract of Jimson's weed (Datura Innoxia) to the African catfish (Clarias gariepinus) fingerlings

  • V. O. AYUBA Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria
  • P. C. OFOJEKWU Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria

Abstract

Datura innoxia root extract was exposed to fingerlings of Clarias gariepinus (mean weight: 10.20 + 0.38 g) for 96 hours under laboratory conditions using static bioassays with continuous aeration to determine its acute toxicity. The LC50 of the exposed fingerlings was found to be 204.17 mg/L with lower and upper confidence limits being 125.89 and 384.59 mg/L respectively. The fish exhibited loss of balance, respiratory distress and swam erratically just before death.

Key words: Catfish, Clarias gariepinus, Datura innoxia, Datura innoxia, toxicity.

Journal of Aquatic Sciences Vol.17(2) 2002:131-133

Author Biography

V. O. AYUBA, Fisheries Research Unit, Department of Zoology, University of Jos, Jos, Nigeria
Present Address: Department of Fisheries and Aquaculture, University of Agriculture Makurdi, Nigeria
Published
2004-03-01
Section
Articles

Journal Identifiers


eISSN: 0189-8779