A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times
Abstract Stable isotope analyses of zooarchaeological material can be used to examine ecological variability in exploited species at centennial to millennial scales. Climate change is a notable driver of marine ecosystem change, although historical fishing is also likely to have impacted past marine...
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2021
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crspringernat:10.1038/s41598-021-92243-7 2023-05-15T15:26:39+02:00 A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times Ólafsdóttir, Guðbjörg Ásta Edvardsson, Ragnar Timsic, Sandra Harrison, Ramona Patterson, William P. Icelandic Centre for Research Guðbjörg Ásta Ólafsdóttir 2021 http://dx.doi.org/10.1038/s41598-021-92243-7 http://www.nature.com/articles/s41598-021-92243-7.pdf http://www.nature.com/articles/s41598-021-92243-7 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-92243-7 2022-01-04T13:06:42Z Abstract Stable isotope analyses of zooarchaeological material can be used to examine ecological variability in exploited species at centennial to millennial scales. Climate change is a notable driver of marine ecosystem change, although historical fishing is also likely to have impacted past marine systems. Fishing removes the oldest and largest individuals and may thereby result in shorter trophic pathways and reduced niche width of predatory fish species. In the current study we examine the trophic niche of Atlantic cod, haddock and Atlantic wolffish, in the last millennium using δ 13 C and δ 15 N values of bone collagen. We report a lower trophic level of Atlantic cod and haddock but higher level of wolffish in present times, following centuries at consistent and higher trophic levels of Atlantic cod. This results in a concurrent converging trophic niche of the demersal fish. We suggest that the current data set provides a valuable historical baseline facilitating interpretation of current variability in the trophic ecology of northern demersal fish. Article in Journal/Newspaper atlantic cod Gadus morhua Springer Nature (via Crossref) Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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English |
topic |
Multidisciplinary |
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Multidisciplinary Ólafsdóttir, Guðbjörg Ásta Edvardsson, Ragnar Timsic, Sandra Harrison, Ramona Patterson, William P. A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
topic_facet |
Multidisciplinary |
description |
Abstract Stable isotope analyses of zooarchaeological material can be used to examine ecological variability in exploited species at centennial to millennial scales. Climate change is a notable driver of marine ecosystem change, although historical fishing is also likely to have impacted past marine systems. Fishing removes the oldest and largest individuals and may thereby result in shorter trophic pathways and reduced niche width of predatory fish species. In the current study we examine the trophic niche of Atlantic cod, haddock and Atlantic wolffish, in the last millennium using δ 13 C and δ 15 N values of bone collagen. We report a lower trophic level of Atlantic cod and haddock but higher level of wolffish in present times, following centuries at consistent and higher trophic levels of Atlantic cod. This results in a concurrent converging trophic niche of the demersal fish. We suggest that the current data set provides a valuable historical baseline facilitating interpretation of current variability in the trophic ecology of northern demersal fish. |
author2 |
Icelandic Centre for Research Guðbjörg Ásta Ólafsdóttir |
format |
Article in Journal/Newspaper |
author |
Ólafsdóttir, Guðbjörg Ásta Edvardsson, Ragnar Timsic, Sandra Harrison, Ramona Patterson, William P. |
author_facet |
Ólafsdóttir, Guðbjörg Ásta Edvardsson, Ragnar Timsic, Sandra Harrison, Ramona Patterson, William P. |
author_sort |
Ólafsdóttir, Guðbjörg Ásta |
title |
A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
title_short |
A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
title_full |
A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
title_fullStr |
A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
title_full_unstemmed |
A millennium of trophic stability in Atlantic cod (Gadus morhua): transition to a lower and converging trophic niche in modern times |
title_sort |
millennium of trophic stability in atlantic cod (gadus morhua): transition to a lower and converging trophic niche in modern times |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-92243-7 http://www.nature.com/articles/s41598-021-92243-7.pdf http://www.nature.com/articles/s41598-021-92243-7 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-92243-7 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766357128870625280 |