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Changes in the nutritional composition of captive early-mid stage Panulirus ornatus phyllosoma over ecdysis and larval development

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dc.contributor Australian Institute Of Marine Science
dc.contributor Sch Life & Environm Sci
dc.contributor Deakin University
dc.contributor Deakin Univ
dc.contributor Australian Inst Marine Sci FRANCIS, DAVID S. CONLAN, JESSICA A. JONES, PAUL L. TURCHINI, GIOVANNI M. HALL, MICHAEL R. 2015-03-25T04:23:41Z 2015-03-25T04:23:41Z 2017-03-21T00:55:57Z 2019-05-09T01:03:08Z 2015-03-25T04:23:41Z 2017-03-21T00:55:57Z 2017-03-21T00:55:57Z 2019-05-09T01:03:08Z 2014-10-20
dc.identifier.citation Conlan JA, Jones PL, Turchini GM, Hall MR, Francis DS (2014) Changes in the nutritional composition of captive early-mid stage Panulirus ornatus phyllosoma over ecdysis and larval development. Aquaculture 434:159-170 en_US
dc.identifier.issn 0044-8486
dc.description.abstract Elucidation of the key nutritional requirements for complete larval development of the tropical spiny rock lobster, Panulirus ornatus, presents a major challenge for the development of robust commercial aquaculture for this crustacean. As a foundation study in this area, the chemical composition of early mid stage P. ornatus phyllosoma (Stages I-VI) receiving a novel formulated diet was analysed immediately prior and post-ecdysis to provide insight into the crude nutritional trends during the larval development cycle. From the onset of moulting, cyclical patterns were evident in the proximate composition of phyllosoma, resulting in substantial restructuring between the pre- and post-moult stages of the moult cycle. Proportions of protein, lipid and ash were high at the premoult stage, reflecting growth and nutrient accumulation over the intermoult period, and reduced at the post-moult stage, reflecting the large uptake of water to facilitate subsequent growth. Polar lipid was the dominant lipid class, accounting for >90% of the total lipid content. Conversely, triacylglycerol concentrations were low (<5%), despite being the principal lipid class available in the formulated diet. Likewise, despite receiving high concentrations of eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) (9.2 and 7.6% of the dietary lipid source, respectively), levels of these fatty adds were comparatively low in phyllosoma (3.4 and 4.7%, respectively). In contrast, there is selective deposition of these fatty acids in wild caught phyllosoma. This finding suggests a poor assimilation of triacylglycerols by captive larvae and highlights the importance of future investigations into alternative sources of EPA and DHA. Ultimately, this study provides insight into the nutritional requirements of phyllosoma, providing valuable knowledge on diet formulation for commercially viable hatchery production of spiny rock lobsters. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.
dc.description.sponsorship This project was funded by the Australian Institute of Marine Science (AIMS) and Deakin University. The authors wish to thank Matt Salmon, Justin Hochen, Grant Milton and Katie Holroyd of AIMS and the staff of Deakin University's School of Life and Environmental Sciences for technical assistance throughout the project.
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartof Null
dc.subject Fatty Acids en_US
dc.subject Aquaculture en_US
dc.subject Nutrition en_US
dc.subject Lobster en_US
dc.subject Phospholipid en_US
dc.subject Fisheries
dc.subject Chemical-composition
dc.subject Fatty-acid-composition
dc.subject Spiny Lobster
dc.subject Southern Rock Lobster
dc.subject Marine & Freshwater Biology
dc.subject Lipid-composition
dc.subject Decapod Crustacean Larvae
dc.subject Pandalus-borealis Larvae
dc.subject Penaeus-monodon Fabricius
dc.subject Lobster Jasus-edwardsii
dc.subject Mud Crab
dc.title Changes in the nutritional composition of captive early-mid stage Panulirus ornatus phyllosoma over ecdysis and larval development
dc.type journal article en_US
dc.identifier.doi 10.1016/j.aquaculture.2014.07.030
dc.identifier.wos WOS:000345058700023

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