alexa Low Salinity Decreases the Tolerance to Two Pesticides,
ISSN: 2155-9546

Journal of Aquaculture Research & Development
Open Access

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Research Article

Low Salinity Decreases the Tolerance to Two Pesticides, Beta-cypermethrin and Acephate, of White-leg Shrimp, Litopenaeus vannamei

Xiaodan Wang, Erchao Li*, Zequan Xiong, Ke Chen, Na Yu, Zhenyu Du and Liqiao Chen*
School of Life Sciences, East China Normal University, 200241, Shanghai, China
Corresponding Authors : Erchao Li
School of Life Sciences
East China Normal University
200241, Shanghai, China
Tel: +86-21-54341002
E-mail: [email protected]
  Liqiao Chen
School of Life Sciences
East China Normal University
200241, Shanghai, China
Tel: +86-21-54341002
E-mail: [email protected]
Received May 31, 2013; Accepted July 24, 2013; Published July 26, 2013
Citation: Wang X, Li E, Xiong Z, Chen K, Yu N (2013) Low Salinity Decreases the Tolerance to Two Pesticides, Beta-cypermethrin and Acephate, of Whiteleg Shrimp, Litopenaeus vannamei. J Aquac Res Development 4:190. doi:10.4172/2155-9546.1000190
Copyright: © 2013 Wang X, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Acute toxic effects of two commonly used pesticides, beta-cypermethrin and Acephate, to the white-leg shrimp, Litopenaeus vannamei, were tested at ambient salinity 5.0% and 20.0%, by using a static renewal method. The results showed that the mean LC50 values of beta-cypermethrin at 24, 48, 72 and 96 h were 0.437, 0.317, 0.203, and 0.170 μg/L to the white shrimp at 5.0%, and were 0.767, 0.440, 0.383, and 0.383 μg/L at 20.0%. The mean LC50 values of Acephate at 24, 48, 72, and 96 h were 51.250, 38.007, 27.783, 18.247 mg/L at 5.0%, and were 59.853, 43.490, 34.220, 27.337 mg/L at 20.0%. L. vannamei is more sensitive to ambient beta-cypermethrin and Acephate toxicity at salinity 5.0% than at salinity 20.0%. Beta-cypermethrin is highly toxic to L. vannamei at either salinity, while acephate has low toxicity to L. vannamei.

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