Allee effects and the allee-effect zone in northwest atlantic cod ...
According to the theory of compensatory dynamics, depleted populations should recover when the threat responsible for their decline is removed because per capita population growth is assumed to be highest when populations are at their smallest viable sizes. Yet, many seriously depleted fish populati...
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2021
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Online Access: | https://dx.doi.org/10.5061/dryad.r4xgxd2dg https://datadryad.org/stash/dataset/doi:10.5061/dryad.r4xgxd2dg |
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ftdatacite:10.5061/dryad.r4xgxd2dg 2024-02-04T09:58:47+01:00 Allee effects and the allee-effect zone in northwest atlantic cod ... Perälä, Tommi Kuparinen, Anna Hutchings, Jeffrey 2021 https://dx.doi.org/10.5061/dryad.r4xgxd2dg https://datadryad.org/stash/dataset/doi:10.5061/dryad.r4xgxd2dg en eng Dryad https://dx.doi.org/10.1098/rsbl.2021.0439 https://dx.doi.org/10.5281/zenodo.5584034 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 Gadus morhua compensation depensation recovery ability stock-recruitment relationship Marine conservation Dataset dataset 2021 ftdatacite https://doi.org/10.5061/dryad.r4xgxd2dg10.1098/rsbl.2021.043910.5281/zenodo.5584034 2024-01-05T04:51:50Z According to the theory of compensatory dynamics, depleted populations should recover when the threat responsible for their decline is removed because per capita population growth is assumed to be highest when populations are at their smallest viable sizes. Yet, many seriously depleted fish populations have failed to recover despite threat mitigation. Atlantic cod (Gadus morhua) off Newfoundland despite thirty years of dramatically reduced fishing mortality and numerous fishery closures has not recovered suggesting that drivers other than fishing regulate the growth of collapsed fish populations, inhibiting or preventing their recovery. Here, using Bayesian inference, we show strong evidence of Allee effects in a south Newfoundland cod population, based on data on recruitment and spawning stock biomass. We infer the Allee-effect threshold, below which recovery is impaired. We demonstrate the necessity of data at low population sizes to make inferences about the nature of low-abundance dynamics. Our work ... : The stock and recruitment data was extracted from 2021 Stock Assessment of NAFO Subdivision 3Ps cod. ... Dataset atlantic cod Gadus morhua Newfoundland Northwest Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Gadus morhua compensation depensation recovery ability stock-recruitment relationship Marine conservation |
spellingShingle |
Gadus morhua compensation depensation recovery ability stock-recruitment relationship Marine conservation Perälä, Tommi Kuparinen, Anna Hutchings, Jeffrey Allee effects and the allee-effect zone in northwest atlantic cod ... |
topic_facet |
Gadus morhua compensation depensation recovery ability stock-recruitment relationship Marine conservation |
description |
According to the theory of compensatory dynamics, depleted populations should recover when the threat responsible for their decline is removed because per capita population growth is assumed to be highest when populations are at their smallest viable sizes. Yet, many seriously depleted fish populations have failed to recover despite threat mitigation. Atlantic cod (Gadus morhua) off Newfoundland despite thirty years of dramatically reduced fishing mortality and numerous fishery closures has not recovered suggesting that drivers other than fishing regulate the growth of collapsed fish populations, inhibiting or preventing their recovery. Here, using Bayesian inference, we show strong evidence of Allee effects in a south Newfoundland cod population, based on data on recruitment and spawning stock biomass. We infer the Allee-effect threshold, below which recovery is impaired. We demonstrate the necessity of data at low population sizes to make inferences about the nature of low-abundance dynamics. Our work ... : The stock and recruitment data was extracted from 2021 Stock Assessment of NAFO Subdivision 3Ps cod. ... |
format |
Dataset |
author |
Perälä, Tommi Kuparinen, Anna Hutchings, Jeffrey |
author_facet |
Perälä, Tommi Kuparinen, Anna Hutchings, Jeffrey |
author_sort |
Perälä, Tommi |
title |
Allee effects and the allee-effect zone in northwest atlantic cod ... |
title_short |
Allee effects and the allee-effect zone in northwest atlantic cod ... |
title_full |
Allee effects and the allee-effect zone in northwest atlantic cod ... |
title_fullStr |
Allee effects and the allee-effect zone in northwest atlantic cod ... |
title_full_unstemmed |
Allee effects and the allee-effect zone in northwest atlantic cod ... |
title_sort |
allee effects and the allee-effect zone in northwest atlantic cod ... |
publisher |
Dryad |
publishDate |
2021 |
url |
https://dx.doi.org/10.5061/dryad.r4xgxd2dg https://datadryad.org/stash/dataset/doi:10.5061/dryad.r4xgxd2dg |
genre |
atlantic cod Gadus morhua Newfoundland Northwest Atlantic |
genre_facet |
atlantic cod Gadus morhua Newfoundland Northwest Atlantic |
op_relation |
https://dx.doi.org/10.1098/rsbl.2021.0439 https://dx.doi.org/10.5281/zenodo.5584034 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.r4xgxd2dg10.1098/rsbl.2021.043910.5281/zenodo.5584034 |
_version_ |
1789963340470026240 |