Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes
Pap. avulsos Zool.
; 61: e20216149, 2021. mapas, ilus, tab, graf
Article
in En
| VETINDEX
| ID: vti-32708
Responsible library:
BR68.1
Localization: BR68.1
ABSTRACT
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.(AU)
Key words
Full text:
1
Database:
VETINDEX
Main subject:
Polychaeta
/
Amazonian Ecosystem
/
Spatial Analysis
Limits:
Animals
Language:
En
Journal:
Pap. avulsos Zool.
Year:
2021
Document type:
Article