Environmental Biology of Fishes

, Volume 67, Issue 3, pp 263–268 | Cite as

Atlantic salmon growth in strongly food-limited environments: Effects of egg size and paternal phenotype?

  • Sigurd Einum
Article

Abstract

I manipulated egg size and followed individual mass trajectories from the egg stage in Atlantic salmon to test for effects of size, and for interactions between size and paternal body mass, on offspring performance in strongly food-limited environments. Egg size had a strong effect on body mass at yolk absorption, causing juveniles originating from large eggs to outgrow their siblings from small eggs. This corroborates previous findings of egg size effects under more benign environments, and demonstrates that positive effects of egg size on offspring success are manifested even under strong food-limitation. Previously reported negative effects of being large during the critical period for survival in dense populations are thus likely related to social interactions, rather than to effects of density on total food abundance in the environment. The effect of egg size on offspring performance, and hence the optimal egg size, was independent of paternal body mass.

maternal effects paternal effects metabolic rate life history energetics 

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References

  1. Einum, S. & I.A. Fleming. 1999. Maternal effects of egg size in brown trout (Salmo trutta): Norms of reaction to environmental quality. Proc. R. Soc. Lond., Ser. B 266: 2095–2100.Google Scholar
  2. Einum, S. & I.A. Fleming. 2000a. Highly fecund mothers sacrifice offspring survival to maximise fitness. Nature 405: 565–567.Google Scholar
  3. Einum, S. & I.A. Fleming. 2000b. Selection against late emergence and small offspring in Atlantic salmon (Salmo salar). Evolution 54: 628–639.Google Scholar
  4. Einum, S. & I.A. Fleming. 2002. Does within-population variation in fish egg size reflect maternal influences on optimal values? Am. Nat. 160: 756–765.Google Scholar
  5. Einum, S., A.P. Hendry & I.A. Fleming. 2002. Egg-size evolution in aquatic environments: Does oxygen availability constrain size? Proc. R. Soc. Lond., Ser. B 269: 2325–2330.Google Scholar
  6. Einum, S., M.T. Kinnison & A.P. Hendry. 2003. Evolution of egg size and number. In: A.P. Hendry & S.C. Stearns (ed.) Evolution Illuminated: Salmon and Their Relatives, Oxford University Press, Oxford.Google Scholar
  7. Elliott, J.M. 1990a. Mechanisms responsible for population regulation in young migratory trout, Salmo trutta. II. Fish growth and size variation. J. Anim. Ecol. 59: 171–185.Google Scholar
  8. Elliott, J.M. 1990b. Mechanisms responsible for population regulation in young migratory trout, Salmo trutta. III. The role of territorial behaviour. J. Anim. Ecol. 59: 803–818.Google Scholar
  9. Elliott, J.M. & M.A. Hurley. 1997. A functional model for maximum growth of Atlantic salmon parr, Salmo salar, from two populations in northwest England. Funct. Ecol. 11: 592–603.Google Scholar
  10. Fleming, I.A., B. Jonsson, M.R. Gross & A. Lamberg. 1996. An experimental study of the reproductive behaviour and success of farmed and wild Atlantic salmon (Salmo salar). J. Appl. Ecol. 33: 893–905.Google Scholar
  11. Forseth, T., T.F. Næsje, B. Jonsson & K. Hårsaker. 1999. Juvenile migration in brown trout: A consequence of energetic state. J. Anim. Ecol. 68: 783–793.Google Scholar
  12. Forseth, T., M.A. Hurley, A.J. Jensen & J.M. Elliott. 2001. Functional models for growth and food consumption of Atlantic salmon parr, Salmo salar, from a Norwegian river. Freshw. Biol. 46: 173–186.Google Scholar
  13. Hartman, K.J. & S.B. Brandt. 1995. Estimating energy density of fish. Trans. Am. Fish. Soc. 124: 347–355.Google Scholar
  14. Hendry, A.P., T. Day & A.B. Cooper. 2001. Optimal size and number of propagules: Allowance for discrete stages, and effects of maternal size on reproductive output and offspring fitness. Am. Nat. 106: 387–407.Google Scholar
  15. Huntingford, F.A., N.B. Metcalfe, J.E. Thorpe, W.D. Graham & C.E. Adams. 1990. Social dominance and body size in Atlantic salmon parr, Salmo salar L. J. Fish Biol. 36: 877–881.Google Scholar
  16. Jensen, A.J., T. Forseth & B.O. Johnsen. 2000. Latitudinal variation in growth of young brown trout Salmo trutta. J. Anim. Ecol. 69: 1010–1020.Google Scholar
  17. Jonsson, B. & K. Hindar. 1982. Reproductive strategy of dwarf and normal Arctic charr (Salvelinus alpinus) from Vangsvatnet Lake, western Norway. Can. J. Fish. Aquat. Sci. 39: 1404–1413.Google Scholar
  18. Jonsson, B., T. Forseth, A.J. Jensen & T.F. Næsje. 2001. Thermal performance of juvenile Atlantic salmon, Salmo salar L. Funct. Ecol. 15: 701–711.Google Scholar
  19. Kolm, N. 2001. Females produce larger eggs for large males in a paternal mouth-brooding fish. Proc. R. Soc. Lond., Ser. B. 268: 2229–2234.Google Scholar
  20. Maekawa, K., S. Nakano & S. Yamamoto. 1994. Spawning behaviour and size-assortative mating of Japanese charr in an artificial lake-inlet stream system. Env. Biol. Fishes 39: 109–117.Google Scholar
  21. McGinley, M.A. 1989. The influence of a positive correlation between clutch size and offspring fitness on the optimal offspring size. Evol. Ecol. 3: 150–156.Google Scholar
  22. Metcalfe, N.B., E.B. Taylor & J.E. Thorpe. 1995. Metabolic rate, social status and life-history strategies in Atlantic salmon. Anim. Behav. 49: 431–436.Google Scholar
  23. Mitchell-Olds, T. & R.G. Shaw. 1987. Regression analysis of natural selection: Statistical inference and biological interpretation. Evolution 41: 1149–1161.Google Scholar
  24. O'Connor, K.I., A.C. Taylor & N.B. Metcalfe. 2000. The stability of standard metabolic rate during a period of food deprivation in juvenile Atlantic salmon. J. Fish Biol. 57: 41–51.Google Scholar
  25. Økland, F., B. Jonsson, A.J. Jensen & L.P. Hansen. 1993. Is there a threshold size regulating seaward migration of brown trout and Atlantic salmon? J. Fish Biol. 42: 541–550.Google Scholar
  26. Parker, G.A. & M. Begon. 1986. Optimal egg size and clutch size: effects of environment and maternal phenotype. Am. Nat. 128: 573–592.Google Scholar
  27. Persson, L. 1985. Asymmetrical competition: are larger animals competitively superior. Am. Nat. 126: 261–266.Google Scholar
  28. Sakai, S. & Y. Harada. 2001. Why do large mothers produce large offspring? Theory and a test. Am. Nat. 157: 348–359.Google Scholar
  29. Sargent, R.C., P.D. Taylor & M.R. Gross. 1987. Parental care and the evolution of egg size in fishes. Am. Nat. 129: 32–46.Google Scholar
  30. Smith, C.C. & S.D. Fretwell. 1974. The optimal balance between size and number of offspring. Am. Nat. 108: 499–506.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Sigurd Einum
    • 1
  1. 1.Norwegian Institute for Nature ResearchTrondheimNorway

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