Structure of a polychaete community in a mangrove in the northern coast of Brazil

Polychaetes play an important role in the structure and functioning of benthic communities in mangroves; however, knowledge about these organisms in the Maranhão Amazon coast is scarcity. This study analyzed the ecological aspects of polychaete community in the Quebra Pote mangrove in Maranhão State...

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Autores:
Tavares Cutrim, Allana Stéphanie
Santos Sousa, Lorena Karine
Passos Ribeiro, Rannyele
De Oliveira, Verônica Maria
Da Silva de Almeida, Zafira
Tipo de recurso:
Article of journal
Fecha de publicación:
2018
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/68139
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/68139
http://bdigital.unal.edu.co/69172/
Palabra clave:
57 Ciencias de la vida; Biología / Life sciences; biology
Annelids
Diversity
Estuaries
Feeding guilds
Soft bottoms
anélidos
diversidad
estuarios
fondos blandos
variación
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:Polychaetes play an important role in the structure and functioning of benthic communities in mangroves; however, knowledge about these organisms in the Maranhão Amazon coast is scarcity. This study analyzed the ecological aspects of polychaete community in the Quebra Pote mangrove in Maranhão State. Four sampling campaigns were carried out during both rainy and dry periods between November 2013 and July 2014, using 100 meters long transects set perpendicular to the waterline at three zones 50 m between them. A total of 521 organisms were identified belonging to ten families and 15 species; Nephtys simoni, Notomastus sp., and Paraonis sp. represented 58.92 % of all samples. Mobile deposit-feeders polychaetes were dominant and abundant. The Quebra Pote mangrove showed high values of diversity and evenness. The spatial distribution indicated that several species such as Capitella sp., Heteromastus sp., N. simoni, Notomastus sp., Paradoneis sp., Paraonis sp., Scoloplos texana, Sigambra grubei, and Syllis gracilis magellanica were present in all mangrove zones. The diversity and abundance of polychaetes were greater in lower mesolittoral (Zone 1), with a dominance of Avicennia schaueriana. The abundance of polychaetes decreased along transects from the lower mesolittoral to upper mesolittoral areas, suggesting that the presence of domestic sewage effects supersedes the vegetation effect.