A combination of genetic and phenotypic characterization of spring- and autumn-spawning herring suggests gene flow between populations

Abstract

Atlantic herring (Clupea harengus) has complex population structure and dynamics including diverse life histories and spawning times with spring and autumn spawning as the most common modes. Originally, spawning herring were phenotypically identified based on their maturity development or otolith microstructure by determining seasonal specific larval growth patterns. Recently, genetic markers have revealed clear genetic differentiation between spring- and autumn-spawning populations. All three methods were applied to herring caught at the same locations during spring and autumn to determine the coherence of methods. In a selected subset, most herring (similar to 77%) had an otolith microstructure and genetic assignment coinciding with the phenotypically assigned spawning season. Non-spawning herring (

Keywords

otolith microstructure; population discrimination; phenotypic plasticity; population structure; skipped spawning; SNP

Published in

ICES Journal of Marine Science
2021, volume: 78, number: 2, pages: 694-703
Publisher: OXFORD UNIV PRESS

SLU Authors

• Andersson, Leif

  • Texas AandM University College Station

• Andersson, Leif

  • Department of Animal Biosciences, Swedish University of Agricultural Sciences
    
  • Texas A&M University
  • Uppsala University

UKÄ Subject classification

Fish and Aquacultural Science

Publication identifier

• DOI: https://doi.org/10.1093/icesjms/fsaa046

Permanent link to this page (URI)

https://res.slu.se/id/publ/113201