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United States Department of Agriculture

Agricultural Research Service

Research Project: Methods to Control Egg Mortality Associated with Aquatic Fungus (Saprolegnia SPP.) Infecting Hybrid Striped Bass Eggs

Location: Harry K. Dupree Stuttgart National Aquaculture Research Center

Title: Acute toxicity of peracetic acid to fish

item Meinelt, Thomas -
item Pedersen, Lars-Flemming -

Submitted to: Book of Abstracts Aquaculture America
Publication Type: Abstract Only
Publication Acceptance Date: December 6, 2013
Publication Date: February 10, 2014
Citation: Ledbetter, C.K., Farmer, B.D., Straus, D.L., Meinelt, T., Pedersen, L. 2014. Acute toxicity of peracetic acid to fish [abstract]. Book of Abstracts Aquaculture America 2014: Taking Aquaculture to New Heights through Technology, Marketing, Collaboration, February 9-12, 2014, Seattle, Washington. p.291.

Technical Abstract: Peracetic acid (PAA; also called peroxyacetic acid) is a promising new therapeutant for parasites and fungus. It is registered with the U.S. Environmental Protection Agency (EPA) as an antimicrobial compound approved for indoor use on hard, non-porous surfaces. This study determined the acute toxicity of PAA to several fish species. The experiments were designed to provide the 24 h LC50 value for each species at approximately 23 deg C. Ten fish were placed in static 18 L aquaria containing 10 L of well water. Each experiment consisted of 6 PAA concentrations and an untreated control (n=3). Water chemistry for the well water was: pH = 7.5, total alkalinity = 200 mg/L, total hardness = 125 mg/L. The mean LC50 value for all species tested was 5.30 mg/L PAA with the range of 2.77 mg/L to 9.31 mg/L. Black fathead minnows and blue tilapia were most and least sensitive, respectively. The impact of this research will be to understand the toxicity variance among species and ultimately determine safe and effective therapeutic treatments.

Last Modified: 8/27/2014
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