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Marine Biology

, Volume 158, Issue 11, pp 2495–2504 | Cite as

Microalgae from the mucus layer of two massive corals: more than sunken plankton

  • F. Cavada
  • R. Ayala
  • L. Troccoli
  • J. J. Cruz-MottaEmail author
Original Paper

Abstract

The mucus of scleractinian corals harbors a variety of prokaryotic and eukaryotic microorganisms, but little is known about the eukaryotic fraction of this microbiota. In this study, a quantitative and qualitative description of microalgae assemblages associated with the mucus of two species of massive corals is presented. During the first half of 2004, in “Los Frailes” Archipelago (Southern Caribbean), samples of mucus were randomly taken from healthy colonies of Diploria sp. and Colpophyllia sp. Also, samples of water surrounding each colony were taken monthly for six months. Multivariate analysis showed that microalgae assemblages from the mucus were significantly different from those found in the water column, and that variation of microalgae assemblage composition in time was dependent on the coral species. The results indicate that most of the microalgae assemblage associated with the mucus did not originate from a passive trapping of species commonly found in the phytoplankton. Nevertheless, temporal variations of both assemblages (i.e., phytoplankton and mucus) were very dynamic but closely associated.

Keywords

Microalgae Coral Species Scleractinian Coral Mucus Layer Massive Coral 
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

Acknowledgments

Sampling assistance was kindly provided by Mayne Cacique and Zhandra Marcano. We thank Aquanauts Diving Center for providing the diving equipment and boat transportation. We are especially grateful to Dr. Carolina Bastidas (Universidad Simón Bolívar) and three anonymous reviewers, who helped considerably to improve this manuscript.

Supplementary material

227_2011_1750_MOESM1_ESM.pdf (48 kb)
Supplementary material 1 (PDF 48 kb)

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • F. Cavada
    • 1
  • R. Ayala
    • 1
  • L. Troccoli
    • 2
  • J. J. Cruz-Motta
    • 1
    • 3
    Email author
  1. 1.Laboratorio de Ecología ExperimentalUniversidad Simón BolívarCaracasVenezuela
  2. 2.Laboratorio de Productividad PrimariaUniversidad de Oriente, Núcleo Nueva EspartaMargaritaVenezuela
  3. 3.Departamento de Estudios AmbientalesUniversidad Simón BolívarCaracasVenezuela

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