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Coral Reefs

, Volume 37, Issue 3, pp 705–709 | Cite as

Conspicuous endolithic algal associations in a mesophotic reef-building coral

  • Fanny L Gonzalez-Zapata
  • Sebastián Gómez-Osorio
  • Juan Armando Sánchez
Note

Abstract

Understanding how corals and their symbionts specialize across depth gradients allows us to understand biodiversity in shallow and mesophotic coral ecosystems. Here we determined the prevalence of endolithic algal in Agaricia undata (17–83 m) and examined community changes within (shallow, upper and lower zones) and among sites (oceanic vs. continental siliciclastic influence). We observed exposed filaments of endolithic algae in some colonies, which in some cases surfaced the coral as tubular pipelines bridging A. undata costae. We also found multiple cryptic species within the monophyletic group of Ostreobium-like algae (12 rbcL types). Rarely explored as symbionts, Ostreobium in A. undata highlights its potential role in facilitating a broader depth range.

Keywords

Mesophotic coral ecosystems Endolithic algae Symbiont Ostreobium spp. 

Notes

Acknowledgements

This study was supported by COLCIENCIAS Grant No. 120465944147, Universidad de los Andes (Vicerrectoria de Investigaciones-Programa de Investigación en Especiación Ecológica) and CORALINA (Convenios 13-2014 and 21-2015). We thank N. Bolaños, E. Castro, J. Andrade, F. García, O. Ruiz, D. Seguro, L. Dueñas, M. Forero, L. Gutierrez, M. Gómez, M. Marrugo, P. Bongaerts, C. Ramirez and A. Henao.

Compliance with ethical standards

Conflict of interest

The authors declare they have no conflicts of interest.

Supplementary material

338_2018_1695_MOESM1_ESM.docx (159 kb)
Supplementary material 1 (DOCX 25 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Departamento de Ciencias Biológicas (Biommar), Facultad de CienciasUniversidad de los AndesBogotáColombia

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