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  Phylogeography of the snake pipefish, Entelurus aequoreus (Family: Syngnathidae) in the northeastern Atlantic Ocean

Goncalves, I. B., Cornetti, L., Couperus, A. S., Damme, C. J. G. v., & Mobley, K. B. (2017). Phylogeography of the snake pipefish, Entelurus aequoreus (Family: Syngnathidae) in the northeastern Atlantic Ocean. Biological Journal of the Linnean Society, 122(4), 787-800. doi:10.1093/BIOLINNEAN/BLX112.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-0906-E Version Permalink: http://hdl.handle.net/21.11116/0000-0002-0907-D
Genre: Journal Article

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Goncalves, Ines Braga, Author
Cornetti, Luca, Author
Couperus, Abraham S., Author
Damme, Cindy J. G. van, Author
Mobley, Kenyon B.1, Author              
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

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Free keywords: Bayesian skyline plot, Control region, Cytochrome b, Fish, Life history, Mitochondrial DNA, Pelagic, Population increase, Population structure, Range expansion, Entelurus aequoreus, Syngnathidae
 Abstract: The snake pipefish, Entelurus aequoreus, is a widespread marine species occurring in pelagic and coastal environments in the northeastern Atlantic Ocean. Recently, the snake pipefish underwent a short-lived, yet substantial, increase in abundance and range expansion into arctic waters. However, little is known about the species' population structure or if different ecotypes contributed to this outbreak. Specimens (n = 178) were sampled from 25 locations from six regions spanning 1.9 million km2. A fragment of the mitochondrial cytochrome b gene and control region was used to assess population structure and genetic diversity. Both loci showed high haplotype diversity (Hd) and low nucleotide diversity (π) over all sampled locations. A genetic signature of population expansion was evident through mismatch distributions and tests for recent population expansion (Fu's Fs, Tajima's D and R2). Effective population size analyses (Bayesian skyline plot) suggest an expansion 50-100 thousand years before present. However, we found neither significant population differentiation (analysis of molecular variance) among regions nor evidence of genetically distinct ecotypes. This lack of structure is probably due to a pelagic life style, fast development and long distance dispersal aided by ocean currents. Our work highlights the need for further research to better understand the recent outbreak and how this species may respond to future environmental challenges. © 2017 The Linnean Society of London.

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Language(s): eng - English
 Dates: 2017-08-212017-07-122017-08-222017-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1093/BIOLINNEAN/BLX112
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Title: Biological Journal of the Linnean Society
Source Genre: Journal
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Publ. Info: London : Wiley
Pages: - Volume / Issue: 122 (4) Sequence Number: - Start / End Page: 787 - 800 Identifier: ISSN: 0024-4066
CoNE: /journals/resource/954922646052