Nearshore fish (Pholis gunnellus) persists across the North Atlantic through multiple glacial episodes.

Journal Article (Journal Article)

The intertidal biota of the North Atlantic is characterized by two disjunct communities (North American and European) exposed to different climatic regimes during the Pleistocene and in the Holocene. We collect multilocus DNA sequence data from the nearshore fish Pholis gunnellus to help uncover processes determining biogeographical persistence during periodic coastal glaciations. Coalescent-based estimates from the multilocus DNA sequence data suggest that P. gunnellus persisted on both sides of the North Atlantic throughout the last two glacial maxima (> 202,000 years) with little trans-Atlantic gene flow since divergence, very little structure among populations within Europe (Phi(ST) < 0.05) and some structure within the North American coastline (Phi(ST) = 0.0-0.21). Although the ecological flexibility and high local migration of P. gunnellus could have enhanced this species' survival across the Atlantic, logistic regression did not find a significant determinant of trans-Atlantic persistence when considering 12 other North Atlantic phylogeographical studies from the literature.

Full Text

Duke Authors

Cited Authors

  • Hickerson, MJ; Cunningham, CW

Published Date

  • November 2006

Published In

Volume / Issue

  • 15 / 13

Start / End Page

  • 4095 - 4107

PubMed ID

  • 17054505

Electronic International Standard Serial Number (EISSN)

  • 1365-294X

International Standard Serial Number (ISSN)

  • 0962-1083

Digital Object Identifier (DOI)

  • 10.1111/j.1365-294x.2006.03085.x


  • eng