Effect of water hardness on peracetic acid toxicity to zebrafish, Danio rerio, embryos

Publication: Research - peer-reviewJournal article – Annual report year: 2012

  • Author: Marchand, Pierre_André

    Université Catholique de Louvain, Belgium

  • Author: Strauss, David L.

    U.S. Department of Agriculture, Agricultural Research Service, Harry K. Dupree—Stuttgart NationalAquaculture, Stuttgart, AR , United States

  • Author: Wienke, Andreas

    Halle-Wittenberg Medical Faculty, Institute of Medical EpidemiolMartin-Luther University, Halle Biostatistics and Informatics, , Germany

  • Author: Pedersen, Lars-Flemming

    Section for Aquaculture, National Institute of Aquatic Resources, Technical University of Denmark, Nordsøen Forskerpark, Postboks 101, 9850, Hirtshals, Denmark

  • Author: Meinelt, Thomas

    Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany

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The use of peracetic acid (PAA) in aquaculture has been suggested as an
alternative therapeutic agent. Few data are available concerning fish toxicity by PAA or factors that modify this toxicity. The aim of this study was to investigate the influence of water hardness on the acute toxicity of PAA products to embryos of zebrafish (Danio rerio). Embryos were exposed to PAA ranging from 0 to 9 mg/L in low-hardness (1.4 dH or 25 mg/L hardness as CaCO3), medium-hardness (14 dH or 250 mg/L hardness as CaCO3) and high-hardness (140 dH or 2,500 mg/L hardness as CaCO3) waters. The lowest LC50 value was 2.24 mg/L PAA in the low-hardness water, and the highest LC50 value was 7.14 mg/L PAA in the high-hardness water. Toxicity of PAA to embryos was found to be negatively correlated with water hardness. The pH decreased with increasing
concentrations of PAA, and the test waters were observed to become more acidic in low hardness. In conclusion, aquaculturists using PAA should pay attention to water hardness to avoid acidosis
Original languageEnglish
JournalAquaculture International
Publication date2013
CitationsWeb of Science® Times Cited: 1
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ID: 12925114