A mega-cryptic species complex hidden among one of the most common annelids in the North East Atlantic.

We investigate mitochondrial (COI, 16S rDNA) and nuclear (ITS2, 28S rDNA) genetic structure of North East Atlantic lineages of Terebellides, a genus of sedentary annelids mainly inhabiting continental shelf and slope sediments. We demonstrate the presence of more than 25 species of which only seven...

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Bibliographic Details
Published in:PLOS ONE
Main Authors: Arne Nygren, Julio Parapar, Joan Pons, Karin Meißner, Torkild Bakken, Jon Anders Kongsrud, Eivind Oug, Daria Gaeva, Andrey Sikorski, Robert André Johansen, Pat Ann Hutchings, Nicolas Lavesque, Maria Capa
Format: Article in Journal/Newspaper
Language:English
Published: Public Library of Science (PLoS) 2018
Subjects:
Medicine
R
Science
Q
North East Atlantic
Online Access:https://doi.org/10.1371/journal.pone.0198356
https://doaj.org/article/b4a944a9821d4d4e939947b39c917788
Description
Summary:We investigate mitochondrial (COI, 16S rDNA) and nuclear (ITS2, 28S rDNA) genetic structure of North East Atlantic lineages of Terebellides, a genus of sedentary annelids mainly inhabiting continental shelf and slope sediments. We demonstrate the presence of more than 25 species of which only seven are formally described. Species boundaries are determined with molecular data using a broad range of analytical methods. Many of the new species are common and wide spread, and the majority of the species are found in sympatry with several other species in the complex. Being one of the most regularly encountered annelid taxa in the North East Atlantic, it is more likely to find an undescribed species of Terebellides than a described one.

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