The biology and functional morphology of Macoma biota (Bivalvia: Tellinidae: Macominae)

Autor(es)

Piffer, Pedro Ribeiro ^[1] ; de Arruda, Eliane Pintor ^[2] ; Passos, Flavio Dias

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Programa Posgrad Ecol, Dept Biol Anim, Inst Biol, BR-13083970 Campinas, SP - Brazil

^[2] Univ Fed Sao Carlos, BR-18052780 Sorocaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zoologia; v. 28, n. 3, p. 321-333, JUN 2011.
• Citações Web of Science: 3

Resumo

Macoma biota Arruda \& Domaneschi, 2005, is a recently described species known only from the intertidal zone of Praia da Cidade, Caraguatatuba Bay, in the state of Sao Paulo, southeastern Brazil. The main purpose of the present paper is to describe the biology of M. biota, beginning with a detailed analysis of its anatomy and functional morphology and how these attributes are correlated with its habitat and life history. The morphology of the organs in the pallial cavity and their sorting devices indicate that this species has efficient mechanisms to process large amounts of particles that enter this cavity via the inhalant current. M. biota can rapidly select the material suitable for ingestion and direct the undesired excess to the rejection mantle tracts. These characteristics along with the siphon's behavior and the digestive tract configuration reveal that this species can be classified primarily as a deposit feeder, like other species of the genus; however, it can also behave as a suspension feeder, depending on the environmental conditions. (AU)

• Processo FAPESP: 06/57637-7 - Anatomia funcional do complexo palial e biologia de Macoma biota Arruda & Domaneschi, 2005
• Beneficiário: Pedro Ribeiro Piffer
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica