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Journal of Chemistry
Volume 2014 (2014), Article ID 574534, 6 pages
http://dx.doi.org/10.1155/2014/574534
Research Article

Sensitivity of Larvae and Adult and the Immunologic Characteristics of Litopenaeus vannamei under the Acute Hypoxia

1Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
2College of Agriculture, Hainan University, Haikou 570228, China
3Hainan Guangtai Marine Animal Breeding Limited Company, Wenchang 571328, China

Received 9 October 2014; Accepted 12 November 2014; Published 25 November 2014

Academic Editor: Yongjun Gao

Copyright © 2014 Hailong Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Litopenaeus vannamei is one of the most commercially important species of shrimp in the world. In this study, we performed acute hypoxia tests with Litopenaeus vannamei to estimate 12 h median lethal concentration (LC50) values at different life stages. The results indicated that the 12 h LC50 values were significantly different in different life stages of shrimp . The maximum value of 12 h LC50 was 2.113 mg L−1 for mysis III, and the minimum value was 0.535 mg L−1 for adult shrimp with an average total length of 6 cm. The study also determined the hemocyanin concentration (HC) and the total hemocyte counts (THC) in the conditions of hypoxia and reoxygenation. These results showed that the THC decreased and the HC increased under hypoxia, and the THC increased and the HC decreased in the condition of reoxygenation. These results can provide fundamental information for shrimp farming and seedling and also can guide the breeding selection, as well as being very helpful to better understand the hypoxia stress mechanism of shrimp.