Discrimination between freshwater and marine fish using fatty acids: ecological implications and future perspectives
Abstract
Résumé
Introduction
Methodological approach
Data collection
Statistical analysis

Note: All unsaturated FA reported are in the cis configuration, whereas the complete list of individual FA used to calculate ΣSFA, ΣMUFA, and ΣPUFA is provided in Table S21. A letter code in parentheses highlights significant differences in the composition of the most important FA (Fig. 1), and FA sums and ratios between freshwater and marine fish species. DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; F, freshwater; FA, fatty acid; M, marine; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid; SFA, saturated fatty acid; UI, unsaturation index.


Data synthesis findings
FA composition in freshwater and marine fish


Latitudinal gradients


Note: All the unsaturated FA reported are in the cis configuration, whereas the complete list of individual FA used to calculate ΣSFA, ΣMUFA, and ΣPUFA is provided in Table S21. A letter code in parentheses highlights significant differences in the composition of the most important FA (Fig. 1), and FA sums and ratios of freshwater and marine fish species across latitude zones. DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; F, freshwater; FA, fatty acid; M, marine; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid; SFA, saturated fatty acid; UI, unsaturation index.
Differences among feeding modes


Note: All unsaturated fatty acids reported are in the cis configuration, whereas the complete list of individual fatty acids used to calculate ΣSFA, ΣMUFA, and ΣPUFA is provided in Table S21. A letter code in parentheses highlights significant differences in the composition of the most important fatty acids (Fig. 1), and fatty acid sums and ratios of freshwater and marine fish species across feeding modes. DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; F, freshwater; FA, fatty acid; M, marine; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid; SFA, saturated fatty acid; UI, unsaturation index.
Synthesis and perspectives
Major differences between freshwater and marine fish FA composition
Marine to freshwater ratio
Latitudinal gradients in fish FA composition
Differences in fish FA composition across feeding modes
Nutritional implications for human consumption
Potential management implications
Conclusions
Acknowledgements
Footnote
References
Supplementary Material
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