Coral Reefs

, Volume 34, Issue 1, pp 13–16 | Cite as

Defended territories of an aggressive damselfish contain lower juvenile coral density than adjacent non-defended areas on Kenyan lagoon patch reefs

Note

Abstract

Jewel damselfish, Plectroglyphidodon lacrymatus, aggressively defend small territories on coral reefs in which they cultivate lawns of edible macroalgae. Pairwise frequency counts showed that juvenile coral density was lower inside damselfish territories than that in adjacent non-defended areas on lagoon patch reefs in Kenya. These differences in coral density decreased as coral size increased. Direct farming effects of the damselfish and indirect inhibitory effects from higher algal densities inside territories are both thought to be potentially responsible for the results attained herein. Damselfish territories can occupy a large proportion of a coral reef; territorial behaviour in fish may have greater impacts on reef structure, in particular the resilience and growth rate of juvenile corals, than previously appreciated.

Keywords

Coral density Coral reef resilience Damselfish Farming Juvenile coral Territoriality 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • T. A. C. Gordon
    • 1
    • 2
  • B. Cowburn
    • 1
    • 3
  • R. D. Sluka
    • 1
    • 4
  1. 1.A Rocha Kenya Marine Conservation and Research ProgrammeWatamuKenya
  2. 2.Christ’s CollegeUniversity of CambridgeCambridgeUK
  3. 3.Department of ZoologyUniversity of OxfordOxfordUK
  4. 4.A Rocha InternationalCambridgeUK

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