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A millennium of north-east Atlantic cod juvenile growth trajectories inferred from archaeological otoliths

A millennium of north-east Atlantic cod juvenile growth trajectories inferred from archaeological otoliths


Titill: A millennium of north-east Atlantic cod juvenile growth trajectories inferred from archaeological otoliths
Höfundur: Ólafsdóttir, Guðbjörg Ásta   orcid.org/0000-0002-2814-9160
Pétursdóttir, Gróa
Bardarson, Hlynur   orcid.org/0000-0001-7336-3919
Edvardsson, Ragnar
Útgáfa: 2017-10-27
Tungumál: Enska
Umfang: e0187134
Háskóli/Stofnun: Háskóli Íslands
University of Iceland
Deild: Rannsóknasetur á Vestfjörðum (HÍ)
Research Centre in the West Fjords (UI)
Birtist í: PLoS ONE;12(10)
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0187134
Efnisorð: Otolith; Cod; Archaeology; Fish physiology; Fornleifarannsóknir; Þorskur; Fiskifræði
URI: https://hdl.handle.net/20.500.11815/458

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Tilvitnun:

Ólafsdóttir GÁ, Pétursdóttir G, Bárðarson H, Edvardsson R (2017) A millennium of north-east Atlantic cod juvenile growth trajectories inferred from archaeological otoliths. PLoS ONE12(10): e0187134. https://doi.org/10.1371/journal.pone.0187134

Útdráttur:

Archaeological excavations of historical fishing sites across the North Atlantic have recovered high quantities of Atlantic cod (Gadus morhua) bones. In the current study we use Atlantic cod otoliths from archaeological excavations of a historical fishing sites in north-west Iceland, dated to AD 970 –AD 1910 to examine historical growth trajectories of cod. No large scale growth variations or shifts in growth patterns were observed in the current chronologies, supporting the stability of historical Atlantic cod growth trajectories. The most significant variation in growth patterns was consistent with those that have been observed in recent times, for example, reduced early juvenile growth during periods of colder ocean temperature. The current results represent a high resolution chronological record of north-east Atlantic cod growth, greatly increasing the prior temporal range of such data, thereby providing a valuable baseline for a broad range of studies on Atlantic cod growth.

Leyfi:

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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