Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing
Here we upload the files that support our research on the role of risk-spreading strategies in the light of fisheries-induced evolution. The code is stored in Zenodo. Abstract from the paper: Can the advantage of risk-managing life-history strategies become a disadvantage under human-induced evoluti...
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ftzenodo:oai:zenodo.org:6990067 2024-09-15T17:55:28+00:00 Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing Hočevar, Sara 2022-08-11 https://doi.org/10.5061/dryad.3j9kd51m2 unknown Zenodo https://doi.org/10.1111/j.1752-4571.2011.00215.x https://doi.org/10.1093/icesjms/fsu021 https://doi.org/10.1111/eva.13251 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.3j9kd51m2 oai:zenodo.org:6990067 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Atlantic cod bet-hedging fitness Fisheries-Induced Evolution multiple-batch spawning size-selective fishing info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5061/dryad.3j9kd51m210.1111/j.1752-4571.2011.00215.x10.1093/icesjms/fsu02110.1111/eva.13251 2024-07-27T06:48:42Z Here we upload the files that support our research on the role of risk-spreading strategies in the light of fisheries-induced evolution. The code is stored in Zenodo. Abstract from the paper: Can the advantage of risk-managing life-history strategies become a disadvantage under human-induced evolution? Organisms have adapted to the variability and the uncertainty of environmental conditions with a vast diversity of life-history strategies. One of such evolved strategies is multiple-batch spawning, a spawning strategy common to long-lived fishes that 'hedge their bets', by distributing the risk to their offspring on a temporal and spatial scale. The fitness benefits of this spawning strategy increase with female body size, the very trait that size-selective fishing targets. By applying an empirically and theoretically motivated eco-evolutionary mechanistic model that was parameterized for Atlantic cod ( Gadus morhua ), we explored how fishing intensity may alter the life-history traits and fitness of fishes that are multiple-batch spawners. Our main findings are twofold; first, the risk-spreading strategy of multiple-batch spawning is not effective against fisheries selection, because the fisheries selection favours smaller fish with lower risk-spreading effect, and second, the ecological recovery in population size does not secure evolutionary recovery in the population size structure. The beneficial risk-spreading mechanism of the batch spawning strategy highlights the importance of recovery in the size structure of overfished stocks, from which a full recovery in the population size can follow. Simulations and data analyses were conducted in the open-source statistical programming language R (R Core Team, 2021). Other/Unknown Material atlantic cod Gadus morhua Zenodo |
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Atlantic cod bet-hedging fitness Fisheries-Induced Evolution multiple-batch spawning size-selective fishing |
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Atlantic cod bet-hedging fitness Fisheries-Induced Evolution multiple-batch spawning size-selective fishing Hočevar, Sara Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
topic_facet |
Atlantic cod bet-hedging fitness Fisheries-Induced Evolution multiple-batch spawning size-selective fishing |
description |
Here we upload the files that support our research on the role of risk-spreading strategies in the light of fisheries-induced evolution. The code is stored in Zenodo. Abstract from the paper: Can the advantage of risk-managing life-history strategies become a disadvantage under human-induced evolution? Organisms have adapted to the variability and the uncertainty of environmental conditions with a vast diversity of life-history strategies. One of such evolved strategies is multiple-batch spawning, a spawning strategy common to long-lived fishes that 'hedge their bets', by distributing the risk to their offspring on a temporal and spatial scale. The fitness benefits of this spawning strategy increase with female body size, the very trait that size-selective fishing targets. By applying an empirically and theoretically motivated eco-evolutionary mechanistic model that was parameterized for Atlantic cod ( Gadus morhua ), we explored how fishing intensity may alter the life-history traits and fitness of fishes that are multiple-batch spawners. Our main findings are twofold; first, the risk-spreading strategy of multiple-batch spawning is not effective against fisheries selection, because the fisheries selection favours smaller fish with lower risk-spreading effect, and second, the ecological recovery in population size does not secure evolutionary recovery in the population size structure. The beneficial risk-spreading mechanism of the batch spawning strategy highlights the importance of recovery in the size structure of overfished stocks, from which a full recovery in the population size can follow. Simulations and data analyses were conducted in the open-source statistical programming language R (R Core Team, 2021). |
format |
Other/Unknown Material |
author |
Hočevar, Sara |
author_facet |
Hočevar, Sara |
author_sort |
Hočevar, Sara |
title |
Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
title_short |
Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
title_full |
Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
title_fullStr |
Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
title_full_unstemmed |
Multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
title_sort |
multiple-batch spawning: a risk spreading strategy disarmed by highly intensive size-selective fishing |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5061/dryad.3j9kd51m2 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
https://doi.org/10.1111/j.1752-4571.2011.00215.x https://doi.org/10.1093/icesjms/fsu021 https://doi.org/10.1111/eva.13251 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.3j9kd51m2 oai:zenodo.org:6990067 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.3j9kd51m210.1111/j.1752-4571.2011.00215.x10.1093/icesjms/fsu02110.1111/eva.13251 |
_version_ |
1810431746822373376 |