Fisheries change spawning ground distribution of northeast Arctic cod
Prior to the 1920s, the northeast Arctic (NA) cod were caught at spawning grounds ranging from the southernmost to the northernmost parts of the Norwegian coast, but have for the last 50 yr mainly been caught around the Lofoten archipelago and northwards. The NA cod have their feeding and nursery gr...
Published in: | Biology Letters |
---|---|
Main Author: | |
Format: | Text |
Language: | English |
Published: |
The Royal Society
2010
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865037 http://www.ncbi.nlm.nih.gov/pubmed/19923140 https://doi.org/10.1098/rsbl.2009.0789 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:2865037 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:2865037 2023-05-15T14:30:27+02:00 Fisheries change spawning ground distribution of northeast Arctic cod Opdal, Anders Frugård 2010-04-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865037 http://www.ncbi.nlm.nih.gov/pubmed/19923140 https://doi.org/10.1098/rsbl.2009.0789 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865037 http://www.ncbi.nlm.nih.gov/pubmed/19923140 http://dx.doi.org/10.1098/rsbl.2009.0789 © 2009 The Royal Society Marine Biology Text 2010 ftpubmed https://doi.org/10.1098/rsbl.2009.0789 2013-09-03T00:09:16Z Prior to the 1920s, the northeast Arctic (NA) cod were caught at spawning grounds ranging from the southernmost to the northernmost parts of the Norwegian coast, but have for the last 50 yr mainly been caught around the Lofoten archipelago and northwards. The NA cod have their feeding and nursery grounds in the Barents Sea, and migrate south towards the Norwegian coast in the winter to spawn. This study uses commercial fisheries' data from landing ports along the entire Norwegian coast during the period 1866–1969 as evidence of long-term truncation and northerly shift of spawning grounds. Nearly all spawning grounds south of Lofoten have been abandoned, while an increasing proportion of the spawning stock only uses the northernmost areas of the Norwegian coast, Troms and Finnmark. The truncation can hardly be attributed to long-term climatic variations, but may result from an intensive size-selective trawl fishery in the Barents Sea causing a sudden increase in fishing mortality, probably altering the size structure and migratory capacity of the stock. Text Arctic cod Arctic Barents Sea Finnmark Lofoten Northeast Arctic cod Finnmark Troms PubMed Central (PMC) Arctic Barents Sea Lofoten Biology Letters 6 2 261 264 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Marine Biology |
spellingShingle |
Marine Biology Opdal, Anders Frugård Fisheries change spawning ground distribution of northeast Arctic cod |
topic_facet |
Marine Biology |
description |
Prior to the 1920s, the northeast Arctic (NA) cod were caught at spawning grounds ranging from the southernmost to the northernmost parts of the Norwegian coast, but have for the last 50 yr mainly been caught around the Lofoten archipelago and northwards. The NA cod have their feeding and nursery grounds in the Barents Sea, and migrate south towards the Norwegian coast in the winter to spawn. This study uses commercial fisheries' data from landing ports along the entire Norwegian coast during the period 1866–1969 as evidence of long-term truncation and northerly shift of spawning grounds. Nearly all spawning grounds south of Lofoten have been abandoned, while an increasing proportion of the spawning stock only uses the northernmost areas of the Norwegian coast, Troms and Finnmark. The truncation can hardly be attributed to long-term climatic variations, but may result from an intensive size-selective trawl fishery in the Barents Sea causing a sudden increase in fishing mortality, probably altering the size structure and migratory capacity of the stock. |
format |
Text |
author |
Opdal, Anders Frugård |
author_facet |
Opdal, Anders Frugård |
author_sort |
Opdal, Anders Frugård |
title |
Fisheries change spawning ground distribution of northeast Arctic cod |
title_short |
Fisheries change spawning ground distribution of northeast Arctic cod |
title_full |
Fisheries change spawning ground distribution of northeast Arctic cod |
title_fullStr |
Fisheries change spawning ground distribution of northeast Arctic cod |
title_full_unstemmed |
Fisheries change spawning ground distribution of northeast Arctic cod |
title_sort |
fisheries change spawning ground distribution of northeast arctic cod |
publisher |
The Royal Society |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865037 http://www.ncbi.nlm.nih.gov/pubmed/19923140 https://doi.org/10.1098/rsbl.2009.0789 |
geographic |
Arctic Barents Sea Lofoten |
geographic_facet |
Arctic Barents Sea Lofoten |
genre |
Arctic cod Arctic Barents Sea Finnmark Lofoten Northeast Arctic cod Finnmark Troms |
genre_facet |
Arctic cod Arctic Barents Sea Finnmark Lofoten Northeast Arctic cod Finnmark Troms |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865037 http://www.ncbi.nlm.nih.gov/pubmed/19923140 http://dx.doi.org/10.1098/rsbl.2009.0789 |
op_rights |
© 2009 The Royal Society |
op_doi |
https://doi.org/10.1098/rsbl.2009.0789 |
container_title |
Biology Letters |
container_volume |
6 |
container_issue |
2 |
container_start_page |
261 |
op_container_end_page |
264 |
_version_ |
1766304291245522944 |