Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod.
Atlantic cod is a keystone species that remains among the most economically important demersal fish in the North Atlantic. Throughout its distribution range, Atlantic cod is composed of populations with varying environmental preferences and migratory propensities. This life-history variation is like...
Published in: | PLOS ONE |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0292495 https://doaj.org/article/844f16d47aa04a958c17fefc17792f74 |
id |
ftdoajarticles:oai:doaj.org/article:844f16d47aa04a958c17fefc17792f74 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:844f16d47aa04a958c17fefc17792f74 2023-11-05T03:40:21+01:00 Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. Guðbjörg Ásta Ólafsdóttir Shaun Turnbull Ingibjörg G Jónsdóttir Anja Nickel Hjalti Karlsson Theresa Henke Einar Eg Nielsen Snæbjörn Pálsson 2023-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0292495 https://doaj.org/article/844f16d47aa04a958c17fefc17792f74 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0292495 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0292495 https://doaj.org/article/844f16d47aa04a958c17fefc17792f74 PLoS ONE, Vol 18, Iss 10, p e0292495 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1371/journal.pone.0292495 2023-10-08T00:36:02Z Atlantic cod is a keystone species that remains among the most economically important demersal fish in the North Atlantic. Throughout its distribution range, Atlantic cod is composed of populations with varying environmental preferences and migratory propensities. This life-history variation is likely to have contributed to the niche width and large population sizes of Atlantic cod, and its relative resilience to environmental change and exploitation. The Icelandic cod stock is currently managed as a single unit, but early research indicates population variation by depth and temperature and distinct offshore and inshore spawning components. Pelagic 0-group juveniles from different spawning grounds coexist in nursery areas around Iceland, but their genetic composition or habitat partitioning had not been examined post benthic settlement. In the current study we examine the genetic composition of Atlantic cod juvenile aggregations at nearshore nursery grounds in NW-Iceland and report distinct segregation by the depth of offshore and inshore juvenile cod. The physiological mechanism of this segregation is not known, but the pattern demonstrates the need to consider population structure at nursery grounds in the application of marine spatial planning and other area-based conservation tools. Article in Journal/Newspaper atlantic cod Iceland North Atlantic Directory of Open Access Journals: DOAJ Articles PLOS ONE 18 10 e0292495 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Guðbjörg Ásta Ólafsdóttir Shaun Turnbull Ingibjörg G Jónsdóttir Anja Nickel Hjalti Karlsson Theresa Henke Einar Eg Nielsen Snæbjörn Pálsson Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
topic_facet |
Medicine R Science Q |
description |
Atlantic cod is a keystone species that remains among the most economically important demersal fish in the North Atlantic. Throughout its distribution range, Atlantic cod is composed of populations with varying environmental preferences and migratory propensities. This life-history variation is likely to have contributed to the niche width and large population sizes of Atlantic cod, and its relative resilience to environmental change and exploitation. The Icelandic cod stock is currently managed as a single unit, but early research indicates population variation by depth and temperature and distinct offshore and inshore spawning components. Pelagic 0-group juveniles from different spawning grounds coexist in nursery areas around Iceland, but their genetic composition or habitat partitioning had not been examined post benthic settlement. In the current study we examine the genetic composition of Atlantic cod juvenile aggregations at nearshore nursery grounds in NW-Iceland and report distinct segregation by the depth of offshore and inshore juvenile cod. The physiological mechanism of this segregation is not known, but the pattern demonstrates the need to consider population structure at nursery grounds in the application of marine spatial planning and other area-based conservation tools. |
format |
Article in Journal/Newspaper |
author |
Guðbjörg Ásta Ólafsdóttir Shaun Turnbull Ingibjörg G Jónsdóttir Anja Nickel Hjalti Karlsson Theresa Henke Einar Eg Nielsen Snæbjörn Pálsson |
author_facet |
Guðbjörg Ásta Ólafsdóttir Shaun Turnbull Ingibjörg G Jónsdóttir Anja Nickel Hjalti Karlsson Theresa Henke Einar Eg Nielsen Snæbjörn Pálsson |
author_sort |
Guðbjörg Ásta Ólafsdóttir |
title |
Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
title_short |
Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
title_full |
Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
title_fullStr |
Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
title_full_unstemmed |
Genetic assignment predicts depth of benthic settlement for 0-group Atlantic cod. |
title_sort |
genetic assignment predicts depth of benthic settlement for 0-group atlantic cod. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2023 |
url |
https://doi.org/10.1371/journal.pone.0292495 https://doaj.org/article/844f16d47aa04a958c17fefc17792f74 |
genre |
atlantic cod Iceland North Atlantic |
genre_facet |
atlantic cod Iceland North Atlantic |
op_source |
PLoS ONE, Vol 18, Iss 10, p e0292495 (2023) |
op_relation |
https://doi.org/10.1371/journal.pone.0292495 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0292495 https://doaj.org/article/844f16d47aa04a958c17fefc17792f74 |
op_doi |
https://doi.org/10.1371/journal.pone.0292495 |
container_title |
PLOS ONE |
container_volume |
18 |
container_issue |
10 |
container_start_page |
e0292495 |
_version_ |
1781696377896566784 |