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Rapid HPLC analysis of retinoids and dehydroretinoids stored in fish liver: comparison of two lake sturgeon populations
Author(s) -
Doyon C.,
Boileau S.,
Fortin R.,
Spear P. A.
Publication year - 1998
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/j.1095-8649.1998.tb00457.x
Subject(s) - sturgeon , biology , lake sturgeon , high performance liquid chromatography , fish <actinopterygii> , population , acipenser , zoology , fishery , chromatography , chemistry , demography , sociology
All major retinoids (vitamin A) stored in the liver of lake sturgeon from two Québec lakes were analysed by high‐performance liquid chromatography (HPLC). Four HPLC peaks represented approximately 90% of all liver retinoids. Their relative proportion was remarkably consistent in the two sturgeon populations with dehydroretinyl palmitate/oleate accounting for the largest proportion (50–60%). Most retinoids demonstrated significant positive correlations with age, but only in the Lake Berthelot sturgeon. The concentrations of all major retinoids were significantly ( P <0·0001) lower, as much as 40 times lower, in the Lake Saint‐Louis population. Possible explanations for the extremely low liver stores in the Lake Saint‐Louis sturgeon are discussed.