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Development of a two-current choice flume behavioural bioassay for juvenile Panulirus ornatus response to moulting cues


Kelly, TR and Fitzgibbon, QP and Giosio, DR and Trotter, AJ and Smith, GG, Development of a two-current choice flume behavioural bioassay for juvenile Panulirus ornatus response to moulting cues, Scientific Reports, 12 Article 21474. ISSN 2045-2322 (2022) [Refereed Article]

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DOI: doi:10.1038/s41598-022-25969-7


Characterising crustacean behaviour in response to conspecific chemical cues contributes to our evolving knowledge of the drivers of their social behaviour. There is particular interest in understanding the chemical and behavioural mechanisms contributing to cannibalism at ecdysis, as this behaviour substantially limits culture productivity of several commercially important crustaceans. Before investigating the role of chemoreception in cannibalism of moulting crustaceans, we must investigate its role in detecting moulting conspecifics. Here we use a two-current choice flume to observe juvenile tropical rock lobster (Panulirus ornatus) behavioural response to conspecific moulting cues and identifying attracted and avoidant behaviours correlating to moult stage and social relationship. Observed cue preferences show inter-moult juveniles are attracted to the moulting cues of lobsters to which they are socially na´ve. In contrast, post-moult and inter-moult juveniles avoid the moulting cues of individuals whom they are socially familiar with. Average speed and total distance travelled by lobsters increases in response to conspecific moulting cues. This study demonstrates the suitability of a two-current choice flume for behavioural assays in P. ornatus and characterises clear behavioural patterns in juveniles exposed to conspecific moulting cues. This provides important framework for understanding the role of chemical communication in eliciting cannibalism.

Item Details

Item Type:Refereed Article
Keywords:aquaculture, crustacean, behaviour, cannibalism, nutrition, tropical rock lobster
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:Kelly, TR (Miss Tara Kelly)
UTAS Author:Fitzgibbon, QP (Associate Professor Quinn Fitzgibbon)
UTAS Author:Giosio, DR (Dr Dean Giosio)
UTAS Author:Trotter, AJ (Dr Andrew Trotter)
UTAS Author:Smith, GG (Professor Gregory Smith)
ID Code:154622
Year Published:2022
Funding Support:Australian Research Council (IH190100014)
Deposited By:Fisheries and Aquaculture
Deposited On:2022-12-16
Last Modified:2023-02-08

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