Journal of the Marine Biological Association of the United Kingdom

Research Article

Encrusting Sabellariidae (Annelida: Polychaeta) in rhodolith beds, with description of a new species of Sabellaria from the Brazilian coast

André Souza Dos Santosa1a2 c1, Pablo Riula3, Ana Claudia Dos Santos Brasila2 and Martin Lindsey Christoffersena1

a1 Laboratório e Coleção de Invertebrados Paulo Young, Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, Campus I, 58.059-900, João Pessoa, Paraíba, Brazil

a2 Laboratório de Poliquetas, Departamento de Biologia Animal, Universidade Federal Rural do Rio de Janeiro, CEP 23851-970, Seropédica, Rio de Janeiro, Brazil

a3 Departamento de Engenharia e Meio Ambiente, CCAE, Universidade Federal da Paraíba Campus IV, 58.297-000, Rio Tinto, Paraíba, Brazil

Abstract

Rhodoliths or maërl are calcareous nodules of coralline red algae growing unattached to the substrata. They sustain a high biodiversity, being one of the most important marine benthic environments dominated by macrophytes. Sabellariidae are tube-dwelling filter feeding marine polychaetes that build their tubes by secreting cement from their thoracic glands. Some species are solitary, while others build tubes together, forming large aggregates. This study analyses Sabellariidae collected in rhodolith beds along the subtidal zone of the coast of João Pessoa and Cabedelo, Paraíba, north-eastern Brazil. A total of 100 individuals of six species were identified. Four are reported for the first time for the north-east coast of Brazil: Phragmatopoma caudata Mörch (1863), Sabellaria bella Grube (1870), Sabellaria nanella Chamberlin (1919), and Sabellaria wilsoni Lana & Gruet (1989). The first occurrence of Sabellaria pectinata Fauvel (1923) along the western Atlantic is provided as well as the description of a new species of the genus Sabellaria.

(Received November 26 2008)

(Accepted January 25 2010)

(Online publication July 06 2010)

Correspondence:

c1 Correspondence should be addressed to: A.S. Santos, Laboratório de Invertebrados Paulo Young, Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, Campus I, 58090-090, João Pessoa, Paraíba, Brazil email: enteropneusta@gmail.com.