Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation
A recently published article by Frank et al. titled “Exploitation drives an ontogenetic-like deepening in marine fish” claim that the deepening of large individuals commonly observed in exploited marine fish species is driven by fishing pressure. These conclusions fundamentally challenge our current...
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ftdatacite:10.5281/zenodo.2605221 2023-05-15T17:41:09+02:00 Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation Baudron, Alan Ronan Pecl, Gretta Gardner, Caleb Fernandes, Paul G. Audzijonyte, Asta 2019 https://dx.doi.org/10.5281/zenodo.2605221 https://zenodo.org/record/2605221 en eng Zenodo https://zenodo.org/communities/climefish https://dx.doi.org/10.5281/zenodo.2605220 https://zenodo.org/communities/climefish Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Ontogenetic deepening, Northeast Atlantic, fish stock Text Journal article article-journal ScholarlyArticle 2019 ftdatacite https://doi.org/10.5281/zenodo.2605221 https://doi.org/10.5281/zenodo.2605220 2021-11-05T12:55:41Z A recently published article by Frank et al. titled “Exploitation drives an ontogenetic-like deepening in marine fish” claim that the deepening of large individuals commonly observed in exploited marine fish species is driven by fishing pressure. These conclusions fundamentally challenge our current understanding of ontogenetic deepening in marine fishes, including a range of hypotheses that have been put forward to explain it (optimal foraging, optimal temperature, avoidance of predation mortality) and have significant implications for the use of species’ deepening as an indicator of warming seas. However, Frank et al.’s findings are based on a single exploited stock, and in a region where sea temperatures have remained within the species thermal preference range. If Frank et al.’s findings are widely applicable, then the depth at which large fish are observed should correlate positively with fishing intensity in other stock as well. Here we have performed a brief statistical analysis on several Northeast Atlantic fish stocks which experienced varying degrees of fishing exploitation. Our results showed no evidence that ontogenetic deepening became less evident with declining fishing intensity. If anything the depth was negatively correlated with fishing, meaning that as fishing mortality dropped the ontogenetic deepening was more evident. This questions the universality of Frank et al.‘s findings and challenges their conclusion that the deepening of marine species may not be an adequate indicator of warming seas. Text Northeast Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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Ontogenetic deepening, Northeast Atlantic, fish stock |
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Ontogenetic deepening, Northeast Atlantic, fish stock Baudron, Alan Ronan Pecl, Gretta Gardner, Caleb Fernandes, Paul G. Audzijonyte, Asta Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
topic_facet |
Ontogenetic deepening, Northeast Atlantic, fish stock |
description |
A recently published article by Frank et al. titled “Exploitation drives an ontogenetic-like deepening in marine fish” claim that the deepening of large individuals commonly observed in exploited marine fish species is driven by fishing pressure. These conclusions fundamentally challenge our current understanding of ontogenetic deepening in marine fishes, including a range of hypotheses that have been put forward to explain it (optimal foraging, optimal temperature, avoidance of predation mortality) and have significant implications for the use of species’ deepening as an indicator of warming seas. However, Frank et al.’s findings are based on a single exploited stock, and in a region where sea temperatures have remained within the species thermal preference range. If Frank et al.’s findings are widely applicable, then the depth at which large fish are observed should correlate positively with fishing intensity in other stock as well. Here we have performed a brief statistical analysis on several Northeast Atlantic fish stocks which experienced varying degrees of fishing exploitation. Our results showed no evidence that ontogenetic deepening became less evident with declining fishing intensity. If anything the depth was negatively correlated with fishing, meaning that as fishing mortality dropped the ontogenetic deepening was more evident. This questions the universality of Frank et al.‘s findings and challenges their conclusion that the deepening of marine species may not be an adequate indicator of warming seas. |
format |
Text |
author |
Baudron, Alan Ronan Pecl, Gretta Gardner, Caleb Fernandes, Paul G. Audzijonyte, Asta |
author_facet |
Baudron, Alan Ronan Pecl, Gretta Gardner, Caleb Fernandes, Paul G. Audzijonyte, Asta |
author_sort |
Baudron, Alan Ronan |
title |
Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
title_short |
Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
title_full |
Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
title_fullStr |
Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
title_full_unstemmed |
Ontogenetic deepening of Northeast Atlantic fish stocks is not driven by fishing exploitation |
title_sort |
ontogenetic deepening of northeast atlantic fish stocks is not driven by fishing exploitation |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://dx.doi.org/10.5281/zenodo.2605221 https://zenodo.org/record/2605221 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
https://zenodo.org/communities/climefish https://dx.doi.org/10.5281/zenodo.2605220 https://zenodo.org/communities/climefish |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.2605221 https://doi.org/10.5281/zenodo.2605220 |
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1766142451034095616 |