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Brazilian Journal of Botany

, Volume 42, Issue 1, pp 149–170 | Cite as

Biodiversity of benthic filamentous cyanobacteria in tropical marine environments of Bahia State, Northeastern Brazil

  • Taiara Aguiar CairesEmail author
  • Célia Leite Sant’Anna
  • José Marcos de Castro Nunes
Original article
  • 55 Downloads

Abstract

This study aimed to better understand the biodiversity and ecological aspects of benthic filamentous cyanobacteria along the coast of an extensive Brazilian tropical region with underestimated biodiversity. We collected samples between 2010 and 2012 in 24 areas along the coast of the State of Bahia, Northeastern Brazil. We analyzed biodiversity, life form, and spatial distribution of filamentous cyanobacteria on various marine substrata. The intertidal area was divided into three microhabitats according to hydrodynamics: tidal pools, protected reef region, and front reef region. Thirty-two taxa were identified and Oscillatoriales showed the highest biodiversity (16 taxa), followed by Nostocales (9), Synechoccocales (5) and Spirulinales (2). We reported 22 new references to Bahia State. Twenty-two taxa occurred only in one beach, and Symploca cf. hydnoides Gomont was the only widely distributed along the coast of Bahia. Epilithic (21 taxa) and epiphytic (15) showed the greatest species richness. Only two species presented epizoic life form. We observed the highest species richness in the protected reef region (17 taxa). We found eleven and eight taxa in the tidal pool and supralittoral zone, respectively. No cyanobacteria were found in the front reef region, an area with high hydrodynamics. This research presented many taxa in common with previous studies on cyanobacterial diversity developed in other tropical regions around the globe. The great biodiversity and new records reported in this study highlight the need of further surveys in tropical coastal environments, areas still underexplored in terms of biodiversity of cyanobacteria.

Keywords

Class cyanophyceae Diversity Coastal environments 

Notes

Acknowledgements

To CNPq (National Council for Scientific and Technological Development) for the scholarship granted to the first author and to Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB-PRONEM, PNE 0020/2011, and Projeto de Pesquisa em Redes-RED 006/2012).

Author’s Contribution

TAC, CLS and JMCN have identified the material sampled and wrote the manuscript. All authors have approved the final version of the article, and there is no conflict of interest among them.

Supplementary material

40415_2019_517_MOESM1_ESM.docx (46 kb)
Supplementary material 1 (DOCX 46 kb)

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Copyright information

© Botanical Society of Sao Paulo 2019

Authors and Affiliations

  1. 1.Programa de Pós-Graduação em Botânica daUniversidade Estadual de Feira de SantanaFeira de SantanaBrazil
  2. 2.Laboratório de Algas Marinhas (LAMAR), Instituto de Biologia, Campus de OndinaUniversidade Federal da BahiaSalvadorBrazil
  3. 3.Núcleo de Pesquisa em FicologiaInstituto de BotânicaSão PauloBrazil

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