Response of the meiofaunal annelid Saccocirrus pussicus (Saccocirridae) to sandy beach morphodynamics

Autor(es)

Di Domenico, M. ^{[1, 2, 3]} ; Martinez, A. ^[2] ; Almeida, T. C. M. ^[4] ; Martins, M. O. ^[4] ; Worsaae, K. ^[2] ; Lana, P. C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Parana, Ctr Marine Studies, Benth Ecol Lab, BR-83255976 Pontal Do Parana, Parana - Brazil

^[2] Univ Copenhagen, Marine Biol Sect, DK-2100 Copenhagen - Denmark

^[3] Univ Campinas UNICAMP, Zool Museum Prof Dr Adao Jose Cardoso, Inst Biol, BR-13083863 Campinas, SP - Brazil

^[4] Itajai Valley Univ UNIVALI, Lab Aquat Commun Ecol, BR-8302202 Itajai, SC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Hydrobiologia; v. 734, n. 1, p. 1-16, AUG 2014.
• Citações Web of Science: 8

Resumo

Interstitial annelids in the family Saccocirridae live in the extremely turbulent and dynamic swash zone of exposed sandy beaches. We examine herein the relationship between distribution patterns of Saccocirrus pussicus du Bois-Reymond Marcus 1948 and morphodynamics, hydrodynamic zones, and environmental variables at beaches sampled along the Brazilian Atlantic coast. The occurrence and the abundance of S. pussicus at regional scale were positively correlated with the presence of a steep slope, large waves and coarse sand, which are characteristic of reflective beaches. On a local scale, S. pussicus occurred at the swash zone and breaking surf zone of reflective beaches. On a microscale, it preferred the upper 20 cm of the swash zone sediment. Saccocirrus pussicus prefers hydrodynamic zones, which change temporally, suggesting dependence with the dynamics of the surging and plunging waves. The coupling of morphological and behavioral adaptations of S. pussicus to beach morphodynamics is crucial for understanding its surfing life strategies within turbulent environments. (AU)

• Processo FAPESP: 12/08581-0 - Anelídeos intersticiais: sistemática e filogenia de uma fauna negligenciada
• Beneficiário: Maikon Di Domenico
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/04358-7 - Evolução e morfologia 3D dos apêndices prostomiais (palpos) e glândulas epidérmicas de anelídeos intersticiais, com ênfase nas famílias saccocirridae e protodrilidae
• Beneficiário: Maikon Di Domenico
• Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado