Ogmogaster antarctica (Digenea: Notocotylidae) infecting a dwarf minke whale Balaenoptera acutorostrata (Cetartiodactyla: Balaenopteridae) from the southwestern Atlantic Ocean

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundo deApoio a Pesquisa FAP/UNIVILLE CNPq: 140873/2017-1 CNPq: 10477/2017-4 CNPq: 307808/2014-9 CNPq: 440496/2015-2 Processo FAPESP: 2016/50377-1 Digeneans of the genus...

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Bibliographic Details
Published in:Biologia
Main Authors: Ebert, Mariana Bertholdi, Marigo, Juliana, Guerra Neto, Guilherme, Cremer, Marta Jussara, Silva, Reinaldo Jose da
Other Authors: Universidade Estadual Paulista (UNESP)
Format: Article in Journal/Newspaper
Language:English
Published: Springer 2020
Subjects:
Notocotylidae
Intestinal parasite
Whale
Molecular characterization
rDNA SSU gene
mtDNA COI gene
Southwestern Atlantic Ocean
Antarc*
Antarctica
Balaenoptera acutorostrata
minke whale
South Atlantic Ocean
Online Access:http://hdl.handle.net/11449/196622
https://doi.org/10.2478/s11756-020-00454-6
Description
Summary:Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundo deApoio a Pesquisa FAP/UNIVILLE CNPq: 140873/2017-1 CNPq: 10477/2017-4 CNPq: 307808/2014-9 CNPq: 440496/2015-2 Processo FAPESP: 2016/50377-1 Digeneans of the genus Ogmogaster Jagerskiold, 1891 are intestinal parasites of whales and pinnipeds. Due to the difficulty in recovering these parasites from opportunistic stranding events of their hosts, very little morphological and molecular data are available on the species of this genus. During a beach monitoring survey on the Southern Brazilian coast, a dwarf minke whale Balaenoptera acutorostrata (Lacepede, 1804) was necropsied and some digeneans were found in its intestine. Morphological and molecular analyses based on the ribosomal DNA SSU and the mitochondrial DNA COI genes were conducted. The morphological data along with the phylogenetic reconstructions allowed the identification of Ogmogaster antarctica Johnston, 1931. This is the first report of O. antarctica infecting a B. acutorostrata in the South Atlantic Ocean. The morphological data, the molecular characterization and the phylogenetic positioning of O. antarctica presented in this study contribute to the knowledge of the helminth diversity of large whales.

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