Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland
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 cytoc...
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crroyalsociety:10.1098/rspb.2013.2976 2024-06-23T07:51:02+00:00 Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland Ólafsdóttir, Guðbjörg Ásta Westfall, Kristen M. Edvardsson, Ragnar Pálsson, Snæbjörn 2014 http://dx.doi.org/10.1098/rspb.2013.2976 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.2976 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2013.2976 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 281, issue 1777, page 20132976 ISSN 0962-8452 1471-2954 journal-article 2014 crroyalsociety https://doi.org/10.1098/rspb.2013.2976 2024-06-10T04:15:12Z 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 ( Pan I) loci. The models are consistent with an expanding population during the warm medieval period, large historical effective population size ( N E ), a marked bottleneck event at 1400–1500 and a decrease in N E 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. Article in Journal/Newspaper atlantic cod Gadus morhua Iceland North Atlantic The Royal Society Proceedings of the Royal Society B: Biological Sciences 281 1777 20132976 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
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 ( Pan I) loci. The models are consistent with an expanding population during the warm medieval period, large historical effective population size ( N E ), a marked bottleneck event at 1400–1500 and a decrease in N E 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. |
format |
Article in Journal/Newspaper |
author |
Ólafsdóttir, Guðbjörg Ásta Westfall, Kristen M. Edvardsson, Ragnar Pálsson, Snæbjörn |
spellingShingle |
Ólafsdóttir, Guðbjörg Ásta Westfall, Kristen M. Edvardsson, Ragnar Pálsson, Snæbjörn Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
author_facet |
Ólafsdóttir, Guðbjörg Ásta Westfall, Kristen M. Edvardsson, Ragnar Pálsson, Snæbjörn |
author_sort |
Ólafsdóttir, Guðbjörg Ásta |
title |
Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
title_short |
Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
title_full |
Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
title_fullStr |
Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
title_full_unstemmed |
Historical DNA reveals the demographic history of Atlantic cod ( Gadus morhua) in medieval and early modern Iceland |
title_sort |
historical dna reveals the demographic history of atlantic cod ( gadus morhua) in medieval and early modern iceland |
publisher |
The Royal Society |
publishDate |
2014 |
url |
http://dx.doi.org/10.1098/rspb.2013.2976 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.2976 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2013.2976 |
genre |
atlantic cod Gadus morhua Iceland North Atlantic |
genre_facet |
atlantic cod Gadus morhua Iceland North Atlantic |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 281, issue 1777, page 20132976 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2013.2976 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
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281 |
container_issue |
1777 |
container_start_page |
20132976 |
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1802642031251554304 |