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Published VersionCC BY-NC-ND V4.0, Open Access
Journal article
Changes in the physiology and chitin metabolism in cultured juvenile Panulirus ornatus across the moult cycle
Aquaculture Reports, Vol.38, pp.1-9
2024
Abstract
Crustaceans undergo periodic moulting events to facilitate growth, this is a physiological and energetically demanding process. In an aquaculture environment, crustaceans are generally cultured in a defined space and often at high densities, where exposure to cannibalism may be greater than in the wild. Panulirus ornatus is one such emerging aquaculture candidates, moulting frequently as juveniles and providing the opportunity to investigate the relationship between physiology and genetics throughout this important developmental period. In this study, P. ornatus juveniles were assessed every three days across the seventh to eighth juvenile moult phase, sampling was divided into six distinct time points. Brix index, hepatosomatic index, and circulating ecdysone concentrations were measured across these time points. The Brix index was validated as a useful tool for assessing the moult-stages of juvenile P. ornatus, with an increase in Brix value seen in the lead up to ecdysis. Chitin metabolism was mapped, with Chitinase 3 demonstrating hepatopancreas specificity, indicating a role outside of breakdown of dietary chitin. The investigation of physiological parameters across a moult cycle provides a basis for improving moult cycle staging in cultured P. ornatus juveniles and provides further characterisation of the changes that occur during moulting in this species.
Details
- Title
- Changes in the physiology and chitin metabolism in cultured juvenile Panulirus ornatus across the moult cycle
- Authors
- Courtney L. Lewis - University of the Sunshine Coast, Queensland, Centre for BioinnovationSusan Glendinning - University of the Sunshine Coast, Queensland, Centre for BioinnovationBasseer M. Codabaccus - University of TasmaniaChris G. Carter - University of TasmaniaQuinn P. Fitzgibbon - University of TasmaniaGregory G. Smith - University of TasmaniaAbigail Elizur - University of the Sunshine Coast, Queensland, Centre for BioinnovationTomer Ventura (Corresponding Author) - University of the Sunshine Coast, Queensland, Centre for Bioinnovation
- Publication details
- Aquaculture Reports, Vol.38, pp.1-9
- Publisher
- Elsevier BV
- Date published
- 2024
- DOI
- 10.1016/j.aqrep.2024.102308
- ISSN
- 2352-5134
- Copyright note
- © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/)
- Data Availability
- No data was used for the research described in the article.
- Organisation Unit
- School of Education and Tertiary Access; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 991054989002621
- Output Type
- Journal article