The Effect of Acute Erythromycin Exposure on the Swimming Ability of Zebrafish ( Danio rerio ) and Medaka ( Oryzias latipes )

Yanyi Li and Jiabo Zhang
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Yanyi Li: College of Fisheries, Huazhong Agricultural University, Wuhan 430000, China
Jiabo Zhang: College of Fisheries, Huazhong Agricultural University, Wuhan 430000, China

IJERPH, 2020, vol. 17, issue 10, 1-16

Abstract: Erythromycin is a widely used antibiotic, and erythromycin contamination may pose a threat to aquatic organisms. However, little is known about the adverse effects of erythromycin on swimming ability. To quantify erythromycin-induced damage to fish swimming ability, Oryzias latipes and Danio rerio were acutely exposed to erythromycin. The swimming ability of the experimental fish was measured after exposure to varying doses of erythromycin (2 µg/L, 20 µg/L, 200 µg/L, and 2 mg/L) for 96 h. Burst speed (U burst ) and critical swimming speed (U crit ) of experimental fish significantly decreased. In addition, gene expression analysis of O. latipes and D. rerio under erythromycin treatment (2 mg/L) showed that the expression of genes related to energy metabolism in the muscle was significantly reduced in both species of fish. However, the gene expression pattern in the head of the two species was differentially impacted; D. rerio showed endocrine disruption, while phototransduction was impacted in O. latipes . The results of our study may be used as a reference to control erythromycin pollution in natural rivers.

Keywords: erythromycin; swimming ability; mRNA; Oryzias latipes; Danio rerio (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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