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

被引：18

作者：

Marchand, Pierre-Andre ^{[1
]}

Straus, David L. ^{[2
]}

Wienke, Andreas ^{[3
]}

Pedersen, Lars-Flemming ^{[4
]}

Meinelt, Thomas ^{[5
]}

机构：

[1] Catholic Univ Louvain, B-1348 Louvain, Belgium

[2] ARS, USDA, Harry K Dupree Stuttgart Natl Aquaculture, Stuttgart, AR USA

[3] Univ Halle Wittenberg, Halle Wittenberg Med Fac, Inst Med Epidemiol Biostat & Informat, D-06108 Halle, Germany

[4] Tech Univ Denmark, North Sea Res Ctr 20, Aquaculture Sect, DTU Aqua, DK-9850 Hirtshals, Denmark

[5] Leibniz Inst Freshwater Ecol & Inland Fisheries, D-12587 Berlin, Germany

来源：

AQUACULTURE INTERNATIONAL | 2013年 / 21卷 / 03期

关键词：

Peracetic acid; Toxicity; Water hardness; Zebrafish embryos; pH; ICHTHYOPHTHIRIUS-MULTIFILIIS; DISINFECTION; PAA;

D O I：

10.1007/s10499-012-9602-9

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

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 A degrees dH or 25 mg/L hardness as CaCO3), medium-hardness (14 A degrees dH or 250 mg/L hardness as CaCO3) and high-hardness (140 A degrees 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.

引用

页码：679 / 686

页数：8

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