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Control of shell colour changes in the lobster, Panulirus cygnus

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dc.contributor Australian Institute Of Marine Science
dc.contributor University Of Queensland
dc.contributor Western Australia Marine Res Labs
dc.contributor Univ Queensland
dc.contributor Australian Inst Marine Sci
dc.contributor Sch Integrat Biol
dc.contributor Australian Institute Of Marine Science (aims) en HALL, MICHAEL R. WADE, NICHOLAS M. MELVILLE-SMITH, ROY DEGNAN, BERNARD M. 2017-03-21T01:17:27Z 2017-03-21T01:17:27Z 2013-02-28T06:50:26Z 2019-05-09T01:16:30Z 2013-02-28T06:50:26Z 2017-03-21T01:17:27Z 2017-03-21T01:17:27Z 2019-05-09T01:16:30Z 2008-05-01
dc.identifier 7872 en
dc.identifier.citation Wade NM, Melville-Smith R, Degnan BM and Hall MR (2008) Control of shell colour changes in the lobster, Panulirus cygnus. Journal of Experimental Biology. 211: 1512-1519. en
dc.identifier.issn 0022-0949
dc.description Link to abstract/full text - en
dc.description.abstract The transition from juvenile to adult in the Australian western rock lobster, Panulirus cygnus ( George), is preceded by a mass migration from inshore nursery reefs to offshore breeding grounds. Associated with this migration is a moult which results in the animals that are due to migrate undergoing characteristic colour change from deep red to pale pink, known as the 'white' phase, which is believed to be triggered by environmental factors. To investigate this phenomenon, the colour change of wild- caught animals was measured over two separate years in response to two important modifiers of crustacean shell colour, dietary carotenoid and background substrate colour. Changes in shell colour during this colour transition period were influenced more greatly by other factors independent of diet or background substrate and no mass colour change was induced during this time. Shell colour measurement and carotenoid quantification confirmed the presence of animals similar to wild- caught ` whites', regardless of the treatment. From these experimental observations we infer that the 'white' phase of the western rock lobster is not triggered by dietary modification or in response to background substrate. We propose that this transition is under the regulation of an ontogenetic program activated at a specific moult, which induces presently unidentified molecular changes linked to shell colour production. This unique colour transition may have evolved to provide protective camouflage during migration, and serves as an excellent model to study the genetic mechanisms underlying crustacean shell colouration. These data also provide insight into the changes in carotenoid levels induced by environmental factors, and the ability to modify crustacean shell colour in aquaculture.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Journal of Experimental Biology - pages: 211: 1512-1519 en
dc.relation.ispartof Null
dc.subject Life Sciences & Biomedicine - Other Topics
dc.subject Growth
dc.subject Pattern
dc.subject Biology
dc.subject Modification
dc.subject Diet
dc.subject Dietary Astaxanthin
dc.subject Crustacean
dc.subject Carotenoid-pigments
dc.subject Crustacea
dc.subject Carotenoid
dc.subject Prawn Penaeus-japonicus
dc.title Control of shell colour changes in the lobster, Panulirus cygnus
dc.type journal article en
dc.identifier.doi 10.1242/jeb.012930
dc.identifier.wos WOS:000255155700027

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