Distinguishing Between One-Day-Old Cod ( Gadus morhua ) and Haddock ( Melanogrammus aeglefinus ) Eggs by Gas Chromatography and SIMCA Pattern Recognition

• Published in: Canadian Journal of Fisheries and Aquatic Sciences
• Main Authors: Knutsen, H., Moksnes, E., Vogt, N. B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1985
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Gadus morhua
• Online Access: http://dx.doi.org/10.1139/f85-228; http://www.nrcresearchpress.com/doi/pdf/10.1139/f85-228

Single cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) eggs were acid hydrolized. All the fatty acids were liberated and converted to methyl ester in a one-step reaction. The nonpolar hexane extract was analyzed by high resolution gas chromatography (HRGC). Selected peaks, occurring in both types of samples and in all chromatograms, were used to create a matrix for multivariate analysis. We conclude that cod and haddock eggs can be distinguished using this method.