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Marine Biology

, Volume 147, Issue 6, pp 1413–1417 | Cite as

Experimental evidence for selection against fish larvae with high metabolic rates in a food limited environment

  • A. B. Bochdansky
  • P. GrønkjærEmail author
  • T. P. Herra
  • W. C. Leggett
Research Article

Abstract

We provide experimental evidence for a direct link between embryonic metabolism and longevity in the larval stage of a marine fish when food resources are limited. Since growth rates of otoliths are closely related to metabolic rates, the area inside the hatch check (i.e., deposition of otolith matrix during embryonic development) is representative of inherent differences in metabolic rates. When exposed to food limitation, larvae with larger hatch check areas died earlier than larvae with smaller hatch check areas. This relationship did not occur in larvae that fed at saturated levels. A simple explanation for these observations is that larvae, which consumed metabolic fuel at higher rates died earlier unless energy derived from food was not limiting. Since high growth rates are linked to high metabolic rates, this mechanism could efficiently counteract selection for faster average growth but only when resources are limiting.

Keywords

Metabolic Rate Residual Energy Fish Larva High Metabolic Rate Metabolic Intensity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors wish to thank Pierre Pepin for providing laboratory space and logistical support at the Northwest Atlantic Fisheries Center, Department of Fisheries and Oceans, St. John’s, Newfoundland, Canada. We also like to thank Stephanie Carter, Naomi Brunemeyer and Jonathan Fisher for their support during larval rearing and plankton collections.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • A. B. Bochdansky
    • 1
  • P. Grønkjær
    • 2
    Email author
  • T. P. Herra
    • 3
  • W. C. Leggett
    • 3
  1. 1.Department of Ocean earth and Atmospheric SciencesOld Dominion UniversityNorfolkUSA
  2. 2.Department of Marine Ecology, Institute of Biological SciencesUniversity of AarhusAarhus NDenmark
  3. 3.Biology DepartmentQueen’s UniversityKingstonCanada

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