4 Works

Data from: Trans-oceanic genomic divergence of Atlantic cod ecotypes is associated with large inversions

Paul R. Berg, Bastiaan Star, Christophe Pampoulie, Ian R. Bradbury, Paul Bentzen, Jeffrey A. Hutchings, Sissel Jentoft & Kjetill S. Jakobsen
Chromosomal rearrangements such as inversions can play a crucial role in maintaining polymorphism underlying complex traits and contribute to the process of speciation. In Atlantic cod (Gadus morhua), inversions of several megabases have been identified that dominate genomic differentiation between migratory and non-migratory ecotypes in the Northeast Atlantic. Here, we show that the same genomic regions display elevated divergence and contribute to ecotype divergence in the Northwest Atlantic as well. The occurrence of these inversions...

Data from: Can collective memories shape fish distributions? A test, linking space-time occurrence models and population demographics

Jed I. Macdonald, Kai Logemann, Elias T. Krainski, Þorsteinn Sigurðsson, Colin M. Beale, Geir Huse, Solfrid S. Hjøllo & Guðrún Marteinsdóttir
Social learning can be fundamental to cohesive group living, and schooling fishes have proven ideal test subjects for recent work in this field. For many species, both demographic factors, and inter- (and intra-) generational information exchange are considered vital ingredients in how movement decisions are reached. Yet key information is often missing on the spatial outcomes of such decisions, and questions concerning how migratory traditions are influenced by collective memory, density-dependent and density-independent processes remain...

Data from: Ancient DNA reveals the Arctic origin of Viking Age cod from Haithabu, Germany

Bastiaan Star, Sanne Boessenkool, Agata T. Gondek, Elena A. Nikulina, Anne Karin Hufthammer, Christophe Pampoelie, Halvor Knutsen, Carl Andre, Heidi M. Nistelberger, Jan Dierking, Christoph Petereit, Dirk Heinrich, Kjetill S. Jakobsen, Nils Chr. Stenseth, Sissel Jentoft & James H. Barrett
Knowledge of the range and chronology of historic trade and long-distance transport of natural resources is essential for determining the impacts of past human activities on marine environments. However, the specific biological sources of imported fauna are often difficult to identify, in particular if species have a wide spatial distribution and lack clear osteological or isotopic differentiation between populations. Here, we report that ancient fish-bone remains, despite being porous, brittle, and light, provide an excellent...

Data from: Origins of the Greenland shark (Somniosus microcephalus): impacts of ice-olation and introgression

Ryan P. Walter, Denis Roy, Nigel E. Hussey, Björn Stelbrink, Kit M. Kovacs, Christian Lydersen, Bailey C. McMeans, Jörundur Svavarsson, Steven T. Kessel, Sebastian Biton Porsmoguer, Sharon Wildes, Cindy A. Tribuzio, Steven E. Campana, Stephen D. Petersen, R. Dean Grubbs, Daniel D. Heath, Kevin J. Hedges & Aaron T. Fisk
Herein, we use genetic data from 277 sleeper sharks to perform coalescent-based modeling to test the hypothesis of early Quaternary emergence of the Greenland shark (Somniosus microcephalus) from ancestral sleeper sharks in the Canadian Arctic-Subarctic region. Our results show that morphologically cryptic somniosids S. microcephalus and Somniosus pacificus can be genetically distinguished using combined mitochondrial and nuclear DNA markers. Our data confirm the presence of genetically admixed individuals in the Canadian Arctic and sub-Arctic, and...

Registration Year

  • 2017

Resource Types

  • Dataset


  • Marine Research Institute
  • University of Iceland
  • University of Oslo
  • Fisheries and Oceans Canada
  • University of Cambridge
  • Dalhousie University
  • University of Melbourne
  • University of Windsor
  • University of Gothenburg
  • University of Connecticut