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Tolerance for ammonia by early stage spiny lobster (Jasus edwardsii) phyllosoma larvae


Bermudes, M and Ritar, AJ, Tolerance for ammonia by early stage spiny lobster (Jasus edwardsii) phyllosoma larvae, Journal of Crustacean Biology, 28, (4) pp. 695-699. ISSN 0278-0372 (2008) [Refereed Article]

DOI: doi:10.1651/08-2994.1


The tolerance of spiny lobster J. edwardsii phyllosoma to the effects of increasing levels of ammonia was assessed at Stages I to IV of larval development. The median lethal concentration (96-h LC50) for total ammonia (and corresponding NH3-N) were 31.6 (0.97) mg l-1, 45.7 (1.40) mg l-1, 52.1 (1.59) mg l-1, and 35.5 (1.01) mg l-1 at Stage I, II, III and IV, respectively. When Stage II larvae were cultured through to Stage III at total ammonia concentrations of 0.5 (control), 1.4, 3.8, 6.3 and 9.5 mg l-1, the intermoult period increased significantly at and above 6.3 mg l-1 (from 11.2 days in controls to 13.2 days at 9.5 mg l-1). Thus, the no-observable-effect- concentration (NOEC) of total ammonia (and corresponding NH3-N) at Stage II of 3.8 mg l-1 (0.12 mg l-1) was used as the divisor in the acute:chronic ratio (i.e., 96-h LC50 ÷ NOEC) to estimate the concentrations at Stages I, III, and IV, which were 2.7 (0.08) mg l-1, 4.4 (0.14) mg l-1, and 3.0 (0.09) mg l-1, respectively. These results provide the basis for the design and management of systems for the culture of larval J. edwardsii.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Aquaculture rock lobster
UTAS Author:Ritar, AJ (Associate Professor Arthur Ritar)
ID Code:54617
Year Published:2008
Web of Science® Times Cited:6
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2009-02-26
Last Modified:2009-04-22

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