Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry
The distribution of Atlantic cod (Gadus morhua) in northern Norwegian waters is expanding eastward and northward in the Barents Sea and along western Svalbard. In the Arctic fjords of Svalbard, cod has become abundant, but little is known about the biology, origin, or residence patterns of these pop...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/2725151 https://doi.org/10.1007/s00300-020-02642-1 |
id |
ftimr:oai:imr.brage.unit.no:11250/2725151 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/2725151 2023-05-15T14:30:28+02:00 Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry Andrade Rodriguez, Hector Antonio van der Sleen, Peter Black, Bryan A. Godiksen, Jane Aanestad Locke V, William L. Carroll, Michael Leslie Ambrose, William G. Jr. Geffen, Audrey J. 2020 application/pdf https://hdl.handle.net/11250/2725151 https://doi.org/10.1007/s00300-020-02642-1 eng eng Norges forskningsråd: 228107 Polar Biology. 2020, 43 (5), 409-421. urn:issn:0722-4060 https://hdl.handle.net/11250/2725151 https://doi.org/10.1007/s00300-020-02642-1 cristin:1815094 409-421 43 Polar Biology 5 Peer reviewed Journal article 2020 ftimr https://doi.org/10.1007/s00300-020-02642-1 2021-09-23T20:14:13Z The distribution of Atlantic cod (Gadus morhua) in northern Norwegian waters is expanding eastward and northward in the Barents Sea and along western Svalbard. In the Arctic fjords of Svalbard, cod has become abundant, but little is known about the biology, origin, or residence patterns of these populations. To address this issue, we used laser ablation inductively coupled plasma mass spectrometry to quantify the trace elemental composition of cod otoliths at age-0, age-3 and the year of spawning at five distinct locations in northern Norway and western Svalbard. Chemical composition data was used to identify natal sources of cod, their broad-scale migration patterns, and to determine if cod are currently resident in Arctic fjords. Our results suggest that cod collected at Kongsfjord, Isfjord, outside Svalbard, Lofoten, and Porsangerfjord were recruited mainly from the Barents Sea, conforming to the Northeast Arctic cod ecotype. The degree of chemical overlap between Porsangerfjord and Isfjord cod, however, varied with fish age, suggesting individual movements consistent with the Norwegian coastal cod ecotype. Finally, the chemical composition of mature fish at Isfjord, and to a lesser extent Kongsfjord, suggests that cod from the Barents Sea might have recently established residency in these two Arctic fjords. acceptedVersion Article in Journal/Newspaper Arctic cod Arctic atlantic cod Barents Sea Gadus morhua Isfjord* Kongsfjord* Lofoten Northeast Arctic cod Northern Norway Polar Biology Svalbard Institute for Marine Research: Brage IMR Arctic Barents Sea Isfjord ENVELOPE(-26.917,-26.917,73.333,73.333) Kongsfjord ENVELOPE(29.319,29.319,70.721,70.721) Lofoten Norway Svalbard Polar Biology 43 5 409 421 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
The distribution of Atlantic cod (Gadus morhua) in northern Norwegian waters is expanding eastward and northward in the Barents Sea and along western Svalbard. In the Arctic fjords of Svalbard, cod has become abundant, but little is known about the biology, origin, or residence patterns of these populations. To address this issue, we used laser ablation inductively coupled plasma mass spectrometry to quantify the trace elemental composition of cod otoliths at age-0, age-3 and the year of spawning at five distinct locations in northern Norway and western Svalbard. Chemical composition data was used to identify natal sources of cod, their broad-scale migration patterns, and to determine if cod are currently resident in Arctic fjords. Our results suggest that cod collected at Kongsfjord, Isfjord, outside Svalbard, Lofoten, and Porsangerfjord were recruited mainly from the Barents Sea, conforming to the Northeast Arctic cod ecotype. The degree of chemical overlap between Porsangerfjord and Isfjord cod, however, varied with fish age, suggesting individual movements consistent with the Norwegian coastal cod ecotype. Finally, the chemical composition of mature fish at Isfjord, and to a lesser extent Kongsfjord, suggests that cod from the Barents Sea might have recently established residency in these two Arctic fjords. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Andrade Rodriguez, Hector Antonio van der Sleen, Peter Black, Bryan A. Godiksen, Jane Aanestad Locke V, William L. Carroll, Michael Leslie Ambrose, William G. Jr. Geffen, Audrey J. |
spellingShingle |
Andrade Rodriguez, Hector Antonio van der Sleen, Peter Black, Bryan A. Godiksen, Jane Aanestad Locke V, William L. Carroll, Michael Leslie Ambrose, William G. Jr. Geffen, Audrey J. Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
author_facet |
Andrade Rodriguez, Hector Antonio van der Sleen, Peter Black, Bryan A. Godiksen, Jane Aanestad Locke V, William L. Carroll, Michael Leslie Ambrose, William G. Jr. Geffen, Audrey J. |
author_sort |
Andrade Rodriguez, Hector Antonio |
title |
Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
title_short |
Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
title_full |
Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
title_fullStr |
Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
title_full_unstemmed |
Ontogenetic movements of cod in Arctic fjords and the Barents Sea as revealed by otolith microchemistry |
title_sort |
ontogenetic movements of cod in arctic fjords and the barents sea as revealed by otolith microchemistry |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2725151 https://doi.org/10.1007/s00300-020-02642-1 |
long_lat |
ENVELOPE(-26.917,-26.917,73.333,73.333) ENVELOPE(29.319,29.319,70.721,70.721) |
geographic |
Arctic Barents Sea Isfjord Kongsfjord Lofoten Norway Svalbard |
geographic_facet |
Arctic Barents Sea Isfjord Kongsfjord Lofoten Norway Svalbard |
genre |
Arctic cod Arctic atlantic cod Barents Sea Gadus morhua Isfjord* Kongsfjord* Lofoten Northeast Arctic cod Northern Norway Polar Biology Svalbard |
genre_facet |
Arctic cod Arctic atlantic cod Barents Sea Gadus morhua Isfjord* Kongsfjord* Lofoten Northeast Arctic cod Northern Norway Polar Biology Svalbard |
op_source |
409-421 43 Polar Biology 5 |
op_relation |
Norges forskningsråd: 228107 Polar Biology. 2020, 43 (5), 409-421. urn:issn:0722-4060 https://hdl.handle.net/11250/2725151 https://doi.org/10.1007/s00300-020-02642-1 cristin:1815094 |
op_doi |
https://doi.org/10.1007/s00300-020-02642-1 |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
5 |
container_start_page |
409 |
op_container_end_page |
421 |
_version_ |
1766304309014691840 |