Toxic effect of Raphia vinifera on fish leech (Piscicola geometra)

Fafioye, O.O. and Adebisi, A.A. (2001) Toxic effect of Raphia vinifera on fish leech (Piscicola geometra). In: 14th Annual Conference of the Fisheries Society of Nigeria (FISON) , 19-23 January 1998 ,Ibadan, Nigeria, pp. 176-182.

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Abstract

This study examines acute toxicity of Raphia vinifera on fish leech, Piscicola geometra. The leeches with a mean total length of (TL) 4.2+1.0cm were exposed to various concentrations of both crude powdered and ethanolic extracts of the botanical. Median lethal concentration (LC50) was determined with static-renewal tests using logarithmic and arithmetic graphic methods. The LC50 (for 96 hours of crude powdered (aqueous) extracts of the botanical on Piscicola geometra was 1.10 ppm arithmetically and 1.14ppm logarithmically. The 95% confidence limits was 0.10ppm arithmetically and 0.12ppm logarithmically. The LC50 of ethanolic extract of the poison at 96-h was 0.5ppm arithmetically and 0.48ppm logarithmically. The 95% confidence limits were less than 0.10ppm. The use of extracts of R. vinifera in the control of leeches in fish ponds is discussed

Item Type: Conference or Workshop Item
Title: Toxic effect of Raphia vinifera on fish leech (Piscicola geometra)
Personal Creator/Author:
CreatorsEmail
Fafioye, O.O.
Adebisi, A.A.
Page Range: pp. 176-182
Date: 2001
Event Title: 14th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: Ibadan, Nigeria
Event Dates: 19-23 January 1998
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria; biological control; fish ponds; parasite control; toxicity tests; Piscicola geometra; Raphia vinifera
Subjects: Biology
Aquaculture
Chemistry
Item ID: 3707
Depositing User: Ms Maria Kalentsits
Date Deposited: 11 Jul 2010 08:48
Last Modified: 29 Sep 2011 16:54
Related URLs:
URI: http://aquaticcommons.org/id/eprint/3707

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