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

Marchand, Pierre-André;Straus, David L.;Wienke, Andreas;Pedersen, Lars-Flemming;Meinelt, Thomas
(2013) Aquaculture International — Vol. 21, n° 3, p. 679-686 (2013)

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Authors
  • Marchand, Pierre-AndréUCLouvain
    Author
  • Straus, David L.U.S. Department of Agriculture, Agricultural Research Service, Harry K. Dupree—Stuttgart National Aquaculture, Stuttgart, AR, USA
    Author
  • Wienke, AndreasHalle-Wittenberg Medical Faculty, Institute of Medical Epidemiology, Biostatistics and Informatics, Martin-Luther University, Halle, Germany
    Author
  • Pedersen, Lars-FlemmingDTU Aqua, Section for Aquaculture, 20 The North Sea Research Centre, Technical University of Denmark, Hirtshals, Denmark
    Author
  • Meinelt, ThomasLeibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
    Author
Abstract
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 CaCO<inf>3</inf>), medium-hardness (14 °dH or 250 mg/L hardness as CaCO<inf>3</inf>) and high-hardness (140 °dH or 2,500 mg/L hardness as CaCO<inf>3</inf>) 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. © 2012 Springer Science+Business Media Dordrecht.
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Marchand, P.-A., Straus, D. L., Wienke, A., Pedersen, L.-F., & Meinelt, T. (2013). Effect of water hardness on peracetic acid toxicity to zebrafish, Danio rerio, embryos. Aquaculture International, 21(3), 679-686. https://doi.org/10.1007/s10499-012-9602-9 (Original work published 2013)