Parasitology Research

, Volume 116, Issue 5, pp 1443–1452 | Cite as

A new Synthesium species (Digenea: Brachycladiidae) from the bottlenose dolphin Tursiops truncatus (Cetacea: Delphinidae) in Southwestern Atlantic waters

  • Mariana B. Ebert
  • Maria I. Mülller
  • Juliana Marigo
  • Ana L. S. Valente
  • Marta J. Cremer
  • Reinaldo J. da Silva
Original Paper

Abstract

A new species of Synthesium from the bottlenose dolphin Tursiops truncatus in South Brazilian waters is described. Morphological and molecular identification was performed, and phylogenetic analyses were carried out using the ribosomal small subunit and internal transcribed spacer 1 and the mitochondrial NDH dehydrogenase subunit 3 and cytochrome c oxidase subunit 1 genes. The main characteristics of the new species are the subterminal round-shaped oral sucker, the anterior distribution of vitellaria reaching the level of the ovary and the oval-shaped testes. The results obtained with the molecular markers supported the inclusion of the specimens into the genus Synthesium. The nucleotide divergence detected for the mitochondrial genes among the new species and others of the same genus supported the erection of a new species. This is the ninth species assigned to the genus and the third Synthesium species recorded in the South Atlantic Ocean.

Keywords

Tursiops truncatus Brachycladiidae Synthesium Morphology Molecular identification South Atlantic Ocean 

Notes

Acknowledgements

We heartily thank the staff of Projeto Toninhas-UNIVILLE and the Instituto de Pesquisas Cananéia (IPeC) for assistance with stranded animals and sample collection. Special thanks go to Dr. M. Fernández and Dr. N. Fraija-Fernández for providing samples and assisting with the molecular analyses. We thank Dr. J. A. Raga for providing the bibliography, L. Cagiano for improving the art drawing, A. A. Acosta for reviewing the English, and Dr. J. L. Catão-Dias for logistical support and consumables. We also thank the two anonymous reviewers for their suggestions and comments. M. B. Ebert held a scholarship grant from CNPq (131268/2015-5). M. I. Müller held a grant from CAPES (AUX-PE-PNPD 3005/2010) and Programa Jovem Pesquisador, PROPE-UNESP 02/2016. R. J. da Silva was supported by CNPq (307808/2014-9) and CNPq-PROTAX (440496/2015-2)/FAPESP 2016/50377-1. Financial support was also provided by Fundo de Apoio à Pesquisa (FAP)/UNIVILLE.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Mariana B. Ebert
    • 1
  • Maria I. Mülller
    • 1
  • Juliana Marigo
    • 2
  • Ana L. S. Valente
    • 3
  • Marta J. Cremer
    • 4
  • Reinaldo J. da Silva
    • 1
  1. 1.Instituto de BiociênciasUniversidade Estadual Paulista (UNESP)BotucatuBrazil
  2. 2.Faculdade de Medicina Veterinária e ZootecniaUniversidade de São Paulo (USP)São PauloBrazil
  3. 3.Instituto de BiologiaUniversidade Federal de Pelotas (UFPel)PelotasBrazil
  4. 4.Universidade da Região de Joinville (UNIVILLE)JoinvilleBrazil

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