Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes


  • Thuareag Monteiro Trindade dos Santos Universidade Federal do Pará (UFPA), Instituto de Geociências, Faculdade de Oceanografia, Laboratório de Pesquisa em Monitoramento Ambiental Marinho (LAPMAR), Grupo de Estudos de Nematoda Aquáticos (GENAQ). Belém, PA, Brasil.
  • Daiane Aviz Museu Paraense “Emílio Goeldi” (MPEG), Campus de Pesquisa, Coordenação de Zoologia (COZOO), Laboratório de Invertebrados Aquáticos. Belém, PA, Brasil, Universidade Federal do Pará (UFPA), Instituto de Geociências, Faculdade de Oceanografia, Laboratório de Oceanografia Biológica (LOB). Belém, PA, Brasil.



Diopatra cuprea, Ecosystem engineers, Macrotide, Soft-bottom, Tropical region


The present study characterized the macrobenthic fauna found on a muddy-sandy tidal flat of the Amazon coast in areas with and without the presence of Diopatra cuprea (Bosc, 1802) (Onuphidae: Annelida) tubes. In addition, a brief review of records of D. cuprea on the Brazilian Amazon coast is presented. Samples were collected in February 2014 in two different areas: (1) an area in which D. cuprea tubes were present, and (2) a control area, in which worm tubes were absent. A total of 21 taxa were found, of which 10 were associated exclusively with D. cuprea tubes. Although richness did not vary significantly among areas, there were changes in the abundance and composition of species and trophic guilds. In the area with tubes, there was a higher abundance of filter-feeders and the presence of species adapted to consolidated and muddy substrates. Our results and those of other studies indicate that D. cuprea commonly presents low density in the Amazon coastal, and its tubes are typically scattered widely in the intertidal zone. The present findings add knowledge about the presence of the bioconstructor in coastal areas and reinforce the role of tube-building polychaetes as ecosystem engineers.


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How to Cite

Santos, T. M. T. dos, & Aviz, D. (2021). Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes. Papéis Avulsos De Zoologia, 61, e20216149.



Original Article