Ammonia tolerance of Litopenaeus vannamei (Boone) larvae. Issue 3 (12th September 2012)

• Record Type: Journal Article
• Authors: de, María; Sonnenholzner, Stanislaus; Wille, Mathieu; Sorgeloos, Patrick
• Is Part Of: Aquaculture research. Volume 45:Issue 3(2014:Feb.)
• Page Start: 470
• Page End: 475
• Publication Date: 2012-09-12
• Subjects: Aquaculture -- Periodicals; Fishery management -- Periodicals; 639.8
• DOI: 10.1111/j.1365-2109.2012.03248.x
• Languages: English
• ISSNs: 1355-557X

Abstract

<abstract abstract-type="main" id="are3248-abs-0001"> <title>Abstract</title> <p>The tolerance of <italic>Litopenaeus vannamei</italic> 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 <italic>L. vannamei</italic> 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 <italic>L. vannamei</italic> larvae.</p> </abstract>