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Ammonia tolerance of Litopenaeus vannamei (Boone) larvae
Cobo, M.D.; Sonnenholzner, S.; Wille, M.; Sorgeloos, P. (2014). Ammonia tolerance of Litopenaeus vannamei (Boone) larvae. Aquac. Res. 45(3): 470-475. dx.doi.org/10.1111/j.1365-2109.2012.03248.x
In: Aquaculture Research. Blackwell: Oxford. ISSN 1355-557X, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 279278 [ OMA ]

Keyword
    Litopenaeus vannamei (Boone, 1931) [WoRMS]
Author keywords
    Litopenaeus vannamei (Boone); ammonia; toxicity; larval stages

Authors  Top 
  • Cobo, M.D.
  • Sonnenholzner, S.
  • Wille, M., more
  • Sorgeloos, P., more

Abstract
    The tolerance of Litopenaeus vannamei larvae to increasing concentrations of total ammonia nitrogen (TAN) using a short-term static renewal method at 26°C, 34 g L-1 salinity and pH 8.5 was assessed. The median lethal concentration (24 h LC50) for TAN in zoea (1-2-3), mysis (1-2-3) and postlarvae 1 were, respectively, 4.2-9.9-16.0; 19.0-17.3-17.5 and 13.2 mg L-1TAN (0.6-1.5-2.4; 2.8-2.5-2.6 and 1.9 mg L-1 NH3-N). The LC50 values obtained in this study suggest that zoeal and post-larval stages are more sensitive to 24 h ammonia exposure than the mysis stage of L. vannamei larvae. On the basis of the ammonia toxicity level (24 h LC50) at zoea 1, we recommend that this level does not exceed 0.42 mg L-1 TAN – equivalent to 0.06 mg L-1 NH3-N – to reduce ammonia toxicity during the rearing of L. vannamei larvae.

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