Coral Reefs

, 30:1005 | Cite as

Relative gut lengths of coral reef butterflyfishes (Pisces: Chaetodontidae)

Note

Abstract

Variation in gut length of closely related animals is known to generally be a good predictor of dietary habits. We examined gut length in 28 species of butterflyfishes (Chaetodontidae), which encompass a wide range of dietary types (planktivores, omnivores, and corallivores). We found general dietary patterns to be a good predictor of relative gut length, although we found high variation among groups and covariance with body size. The longest gut lengths are found in species that exclusively feed on the living tissue of corals, while the shortest gut length is found in a planktivorous species. Although we tried to control for phylogeny, corallivory has arisen multiple times in this family, confounding our analyses. The butterflyfishes, a speciose family with a wide range of dietary habits, may nonetheless provide an ideal system for future work studying gut physiology associated with specialization and foraging behaviors.

Keywords

Chaetodontidae Corallivory Papua New Guinea Relative gut length 

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • M. L. Berumen
    • 1
    • 2
  • M. S. Pratchett
    • 3
  • B. A. Goodman
    • 4
  1. 1.Red Sea Research CenterKing Abdullah University of Science and TechnologyThuwalKingdom of Saudi Arabia
  2. 2.Biology DepartmentWoods Hole Oceanographic InstitutionWoods HoleUSA
  3. 3.ARC Centre of Excellence for Coral Reef StudiesJames Cook UniversityTownsvilleAustralia
  4. 4.Department of Ecology and Evolutionary BiologyUniversity of ColoradoBoulderUSA

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