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Fish Physiology and Biochemistry

, Volume 10, Issue 2, pp 91–98 | Cite as

A quantitative comparison between diet and body fatty acid composition in wild northern pike (Esox lucius L.)

  • Karl Schwalme
Article

Abstract

The fatty acid compositions of wild female northern pike (Esox lucius L.) and their principle prey species were compared to assess the extent to which pike modify the relative abundance of dietary fatty acids during assimilation and to indicate the optimum dietary content of essential fatty acids (EFAs) for pike. Only minor differences existed between the estimated whole body fatty acid composition of pike and diet fatty acid composition as calculated from the contribution of each prey species to the pike's diet. Saturated fatty acids comprised a slightly higher percentage of diet lipids (25% wt) than of pike lipids (21% wt) whereas monounsaturated fatty acids were less abundant in diet lipids (26% wt) than in pike (29% wt). Percentages of total polyunsaturated fatty acids (PUFAs), n - 3 fatty acids, and n - 6 fatty acids were approximately 43, 30, and 13% wt respectively and differed by less than 1% wt between pike and diet lipids. Among individual PUFAs, the largest differences occurred in 20:5 (n-3) and 22:6(n-3) which comprised, on average, 9.6 and 14.7% wt respectively of diet lipids and 5.9 and 18.3% wt respectively of pike lipids. The close similarity in fatty acid composition between pike and their diet suggests that pike may have limited abilities to elongate and desaturate 18 carbon PUFAs and may require specific long chain PUFAs in the diet. The n-3 PUFA content of the pike's natural diet may exceed the minimum EFA requirements of better studied species such as rainbow trout and turbot.

Keywords

lipids freshwater fish piscivore diet composition essential fatty acids omega 3 omega 6 polyunsaturated fatty acids 

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References cited

  1. Bell, M.V., Henderson, R.J. and Sargent, J.R. 1986. The role of polyunsaturated fatty acids in fish. Comp. Biochem. Physiol. 83B: 711–719.Google Scholar
  2. Castell, J.D., Sinnhuber, R.O., Wales, J.H. and Lee, D.J. 1972. Essential fatty acids in the diet of rainbow trout (Salmo gairdneri): growth, feed conversion and some gross deficiency symptoms. J. Nutr. 102: 77–86.Google Scholar
  3. Chapman, L.J. and Mackay, W.C. 1990. Ecological correlates of feeding flexibility in northern pike (Esox lucius). J. Freshw. Ecol. 5: 313–322.Google Scholar
  4. Christiansen, J.A. 1984. Changes in phospholipid classes and fatty acids and fatty acid desaturation and incorporation into phospholipids during temperature acclimation of green sunfish Lepomis cyanellus R. Physiol. Zool. 57: 481–492.Google Scholar
  5. Davidson, B.C., Giangregorio, A. and Girao, L.A.F. 1990. Essential fatty acids in cheetah and in domestic cats. In Omega-6 essential fatty acids: Pathophysiology and roles in clinical medicine. pp. 90–112. Edited by Alan R. Liss, Inc., New York.Google Scholar
  6. Diana, J.S. 1979. The feeding pattern and daily ration of a top carnivore, the northern pike (Esox lucius). Can. J. Zool. 57: 2121–2127.Google Scholar
  7. Diana, J.S. 1982. An experimental analysis of the metabolic rate and food utilization of northern pike. Comp. Biochem. Physiol. 71A: 395–399.Google Scholar
  8. Folch, J., Lees, M. and Sloane Stanley, G.H. 1957. A simple method for the isolation and purification of total lipides from animal tissues. J. Biol. Chem. 226: 497–509.Google Scholar
  9. Gatesoupe, F.-J., Léger, C., Métailler, R. and Sargent, J.R. 1977. Alimentation lipidique du turbot (Scophthalmus maximus L.) I. Influence de la longueur de chane des acides gras de la série ω3. Ann. d'Hydrobiol. 8: 89–97.Google Scholar
  10. Hagve, T., Christophersen, B.O. and Dannevig, B.H. 1986. Desaturation and chain elongation of essential fatty acids in isolated liver cells from rat and rainbow trout. Lipids 21: 202–205.Google Scholar
  11. Hanson, B.J., Cummins, K.W., Cargill, A.S. and Lowry, R.R. 1985. Lipid content, fatty acid composition, and the effect of diet on fats of aquatic insects. Comp. Biochem. Physiol. 80B: 257–276.Google Scholar
  12. Henderson, R.J. and Tocher, D.R. 1987. The lipid composition and biochemistry of freshwater fish. Prog. Lipid. Res. 26: 281–347.Google Scholar
  13. Léger, C., Gatesoupe, F.-J., Métailler, R., Luquet, P. and Fremont, L. 1979. Effect of dietary fatty acids differing by chain lengths and ω series on the growth and lipid composition of turbot Scophthalmus maximus L. Comp. Biochem. Physiol. 64B: 345–350.Google Scholar
  14. Le Milinaire, C., Gatesoupe, F.-J. and Stephan, G. 1983. Approche du besoin quantitatif en acides gras longs polyinsaturates de la série n-3 chez la larve de turbot (Scophthalmus maximus). C. R. Acad. Sci., Paris 296: 917–920.Google Scholar
  15. Linares, F. and Henderson, R.J. 1991. Incorporation of 14C-labelled polyunsaturated fatty acids by juvenile turbot, Scophthalmus maximus (L.) in vivo. J. Fish Biol. 38: 335–347.Google Scholar
  16. Mackay, W.C. 1989. Growth, feeding, and reproductive biology of freshwater fish in northern Canada. In Northern Lakes and Rivers. pp. 75–92. Edited by W.C. Mackay. Boreal Institute for Northern Studies Special Publication, University of Alberta.Google Scholar
  17. Owen, J.M., Adron, J.W., Middleton, C. and Cowey, C.B. 1975. Elongation and desaturation of dietary fatty acids in turbot Scophthalmus maximus L., and rainbow trout, Salmo gairdneri. Lipids 10: 528–531.Google Scholar
  18. Owen, J.M., Adron, J.W., Sargent, J.R. and Cowey, C.B. 1972. Studies on the nutrition of marine flatfish. The effect of dietary fatty acids on the tissue fatty-acids of the plaice Pleuronectes platessa. Mar. Biol. 13: 160–166.Google Scholar
  19. Sargent, J.R., Henderson, R.J. and Tocher, D.R. 1989. The Lipids. In Fish Nutrition, 2nd Edition. pp. 153–218. Edited by J.E. Halver. Academic Press Inc, New York.Google Scholar
  20. Schwalme, K. 1991. The role of environmental and physiological factors in the seasonal cycle of fatty acid composition in female northern pike (Esox lucius L.). Ph.D. Thesis, Department of Zoology, University of Alberta.Google Scholar
  21. Schwalme, K. and Mackay, W.C. 1992. Seasonal changes in the neutral and polar lipid fatty acid content of female northern pike (Esox lucius L.). Can. J. Zool. (In press).Google Scholar
  22. Sellner, P.A. and Hazel, J.R. 1982. Desaturation and elongation of unsaturated fatty acids in hepatocytes from thermally acclimated rainbow trout. Arch. Biochem. Biophys. 213: 58–66.Google Scholar
  23. Takeuchi, T. and Watanabe, T. 1977. Dietary levels of methyl laurate and essential fatty acid requirement of rainbow trout. Bull. Jap. Soc. Sci. Fisheries. 43: 893–898.Google Scholar
  24. Takeuchi, T. and Watanabe, T. 1979. Effect of excess amounts of essential fatty acids on growth of rainbow trout. Bull. Jap. Soc. Sci. Fisheries. 45: 1517–1519.Google Scholar
  25. Tanasichuk, R.W. and Mackay, W.C. 1989. Quantitative and qualitative characteristics of somatic and gonadal growth of yellow perch (Perca flavescens) from Lac Ste. Anne, Alberta, Can. J. Fish. Aquat. Sci. 46: 989–994.Google Scholar
  26. Watanabe, T., Ogino, C., Koshiishi, Y. and Matsunaga, T. 1974. Requirement of rainbow trout for essential fatty acids. Bull. Jap. Soc. Sci. Fisheries. 40: 493–499.Google Scholar
  27. Watanabe, T. 1982. Lipid nutrition in fish. Comp. Biochem. Physiol. 73B: 3–15.Google Scholar

Copyright information

© Kugler Publications 1992

Authors and Affiliations

  • Karl Schwalme
    • 1
  1. 1.Department of ZoologyUniversity of AlbertaEdmontonCanada

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