Evidence map›Paper›PMID 24403343›Full record

ArticleProceedings. Biological sciences2014

Historical DNA reveals the demographic history of Atlantic cod (Gadus morhua) in medieval and early modern Iceland.

Guðbjörg Ásta Ólafsdóttir, Kristen M Westfall, Ragnar Edvardsson, Snæbjörn Pálsson

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.7field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Article
  3. Ancient environmental DNA indicates limited human impact on marine biodiversity in pre-industrial Iceland.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  4. Article
  5. Stabilizing selection on Atlantic cod supergenes through a millennium of extensive exploitation.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Ancient DNA reveals the Arctic origin of Viking Age cod from Haithabu, Germany.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Guðbjörg Ásta ÓlafsdóttirResearch Centre of the Westfjords, University of Iceland, , Adalstraeti 21, IS415 Bolungarvik, Iceland, VÖR Marine Research Centre, , Nordurtangi, IS355 Snæfellsbær, Iceland, Department of Environmental and Life Science, University of Iceland, , Sturlugata 7, IS101 Reykjavík, Iceland.
Kristen M Westfall
Ragnar Edvardsson
Snæbjörn Pálsson
University of Iceland · ISMarine and Freshwater Research Institute · ISUniversity Centre of the Westfjords · IS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atlantic cod (Gadus morhua) vertebrae from archaeological sites were used to study the history of the Icelandic Atlantic cod population in the time period of 1500-1990. Specifically, we used coalescence modelling to estimate population size and fluctuations from the sequence diversity at the cytochrome b (cytb) and Pantophysin I (PanI) loci. The models are consistent with an expanding population during the warm medieval period, large historical effective population size (NE), a marked bottleneck event at 1400-1500 and a decrease in NE in early modern times. The model results are corroborated by the reduction of haplotype and nucleotide variation over time and pairwise population distance as a significant portion of nucleotide variation partitioned across the 1550 time mark. The mean age of the historical fished stock is high in medieval times with a truncation in age in early modern times. The population size crash coincides with a period of known cooling in the North Atlantic, and we conclude that the collapse may be related to climate or climate-induced ecosystem change.

Indexed as

AnimalsClimateCytochromes bDemographyEcosystemFish ProteinsGadus morhuaIcelandMitochondrial ProteinsMolecular Sequence DataPolymerase Chain ReactionPopulation DynamicsSequence Analysis, DNASpineSynaptophysinTime FactorsCytochromes bFish ProteinsMitochondrial ProteinsSynaptophysinancient DNAAtlantic codcoalescence modellingeffective population size

Identifiers

PMID24403343
PMCPMC3896027
OpenAlexW2115762908

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.