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Isolation, identification and characterisation of ballan wrasse Labrus bergylta plasma pigment
Author(s) -
Clark W.,
Leclercq E.,
Migaud H.,
Nairn J.,
Davie A.
Publication year - 2016
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13106
Subject(s) - wrasse , biology , biliverdin , pigment , crypsis , zoology , biochemistry , fish <actinopterygii> , ecology , fishery , enzyme , chemistry , heme oxygenase , heme , organic chemistry , predation
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 IX α 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.