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Growth and lipid composition of phyllosomata of the southern rock lobster, Jasus edwardsii, fed enriched Artemia


Nelson, MM and Crear, BJ and Nichols, PD and Ritz, DA, Growth and lipid composition of phyllosomata of the southern rock lobster, Jasus edwardsii, fed enriched Artemia, Aquaculture Nutrition, 10, (4) pp. 237-246. ISSN 1353-5773 (2004) [Refereed Article]

DOI: doi:10.1111/j.1365-2095.2004.00295.x


Newly hatched phyllosoma larvae of Jasus edwardsii were on-grown to stage V. Using triacylglycerol-rich marine oil nutrient sources and microalgae, Artemia were enriched with the major polyunsaturated fatty acids (PUFA) to ratios similar to that of wild-caught phyllosomata. Artemia enriched by different methods were fed to cultured phyllosomata. At each stage animals were counted, measured and sampled for lipid analyses. Survival was highest from stages II to III (62-86%), with mean total survival at 3-12%. From stages I to V larvae increased in mass (0.2-2.2 mg) and total length (2.1-5.8 mm), and decreased in total lipid. The major lipid class in all phyllosomata was polar lipid, followed by sterol, with no triacylglycerol detected. The main fatty acids were 18:1(n-9)c, 18:2(n-6), 16:0, 18:0, eicosapentaenoic acid [EPA; 20:5(n-3)], 18:1(n-7)c, arachidonic acid [AA; 20:4(n-6)] and docosahexaenoic acid [DHA; 22:6(n-3)]. On-grown phyllosomata had levels of AA and EPA similar to that of wild phyllosomata, but contained markedly lower levels of DHA. Strategies for enhancement of DHA levels will be needed for culture of rock lobster phyllosomata.

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:Fisheries - aquaculture not elsewhere classified
UTAS Author:Nelson, MM (Mr Matthew Nelson)
UTAS Author:Crear, BJ (Mr Bradley Crear)
UTAS Author:Ritz, DA (Associate Professor David Ritz)
ID Code:31474
Year Published:2004
Web of Science® Times Cited:15
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2004-08-01
Last Modified:2005-04-06

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