Reproductive behavioural differences between wild-caught and pond-reared Penaeus monodon prawn broodstock

Marsden, Gay, Richardson, Neil A., Mather, Peter, & Knibb, Wayne (2013) Reproductive behavioural differences between wild-caught and pond-reared Penaeus monodon prawn broodstock. Aquaculture, 402-403, pp. 141-145.

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Abstract

Ongoing problems exist with the commercial scale domestication of Penaeus monodon. One of the major issues, in terms of reproductive performance, is the low egg hatch rate of eggs from these captive bred prawns. The current study investigated the related issue of mating success. Time lapse video observations were conducted to compare the mating behaviour of pond-reared (domesticated) and wild-caught prawn P. monodon broodstock.

Mating success of the pond-reared prawns was found to be low relative to wild-caught. It was determined that both male and female prawns contributed to this low mating rate suggesting both genders were impacted negatively by the domestication process. The causative factors for the low mating success are yet to be determined, however external physical abnormalities and lack of sexual maturity did not appear to play a role. The most notable behavioural difference between wild-caught and domesticated prawns was a reduced level of pursuit behaviour by domesticated males. This and other behavioural differences are discussed in relation to an increasing body of evidence that male prawns respond to sex pheromones produced by receptive females and that males detect these chemical signals in part, via their second antennal flagella. Accordingly we hypothesise that pond-reared (domesticated) females may have a reduced ability to produce or release sex pheromones and males, a reduced ability to detect them when compared to their wild-caught counterparts.

Impact and interest:

4 citations in Scopus
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4 citations in Web of Science®

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ID Code: 59872
Item Type: Journal Article
Refereed: Yes
Keywords: Penaeus monodon, Prawn, Shrimp , Mating , Domesticated, Wild-caught
DOI: 10.1016/j.aquaculture.2013.03.019
ISSN: 0044-8486
Subjects: Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000)
Divisions: Current > Schools > School of Biomedical Sciences
Current > Research Centres > Centre for Health Research
Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute for Future Environments
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Current > Research Centres > Science Research Centre
Copyright Owner: Copyright 2013 Elsevier
Deposited On: 12 May 2013 22:58
Last Modified: 28 May 2013 00:54

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