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Isolation, identification and characterisation of ballan wrasse Labrus bergylta plasma pigment

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Author(s)

W. Clark, E. Leclercq, H. Migaud, J. Nairn, A. Davie

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Abstract

This study confirmed that observations of blue-green colouration in plasma fractions of the ballan wrasse Labrus bergylta were caused by the linear tetra-pyrrole biliverdin and that the molecule was of the physiologically relevant IXα isomer. Accumulation appears driven by chromogenic association with an unknown protein moiety which precludes enzymatic reduction and would suggest active management. It was demonstrated that the pigment did not fluctuate relative to ontogeny, or indeed binary gender in the species of interest, but mobilisation and depletion in the subset of individuals undergoing sex change at the time of study supports a potential association with gender inversion processes. It is of note that although biliverdin does have some effect on external colouration, the evidence is indicative that crypsis is a supplementary function thus other factors must be considered.
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Original languageEnglish
Pages (from-to)2070-2084
Number of pages15
JournalJournal of Fish Biology
Volume89
Issue number4
Early online date9 Aug 2016
DOIs
Publication statusPublished - Oct 2016

    Research areas

  • Bilirubin, Biliverdin, Biliverdin IXα, Biliverdin reductase, Blue serum

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