Implications of fisheries-induced evolution for stock rebuilding and recovery
Open access article Worldwide depletion of fish stocks has led fisheries managers to become increasingly concerned about rebuilding and recovery planning. To succeed, factors affecting recovery dynamics need to be understood, including the role of fisheries-induced evolution. Here we investigate a s...
Published in: | Evolutionary Applications |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Blackwell Publishing Ltd
2009
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/108300 https://doi.org/10.1111/j.1752-4571.2009.00077.x |
id |
ftimr:oai:imr.brage.unit.no:11250/108300 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/108300 2023-05-15T15:27:18+02:00 Implications of fisheries-induced evolution for stock rebuilding and recovery Enberg, Katja Jørgensen, Christian Dunlop, Erin S. Heino, Mikko Dieckmann, Ulf 2009-07-31 application/pdf http://hdl.handle.net/11250/108300 https://doi.org/10.1111/j.1752-4571.2009.00077.x eng eng Blackwell Publishing Ltd urn:issn:1752-4571 http://hdl.handle.net/11250/108300 http://dx.doi.org/10.1111/j.1752-4571.2009.00077.x 394–414 2 Evolutionary Applications 3 atlantic cod atlantisk torsk fisheries management fiskeriforvaltning stock collapse bestandssammenbrudd VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Journal article Peer reviewed 2009 ftimr https://doi.org/10.1111/j.1752-4571.2009.00077.x 2021-09-23T20:14:59Z Open access article Worldwide depletion of fish stocks has led fisheries managers to become increasingly concerned about rebuilding and recovery planning. To succeed, factors affecting recovery dynamics need to be understood, including the role of fisheries-induced evolution. Here we investigate a stock’s response to fishing followed by a harvest moratorium by analyzing an individual-based evolutionary model parameterized for Atlantic cod Gadus morhua from its northern range, representative of long-lived, late-maturing species. The model allows evolution of life-history processes including maturation, reproduction, and growth. It also incorporates environmental variability, phenotypic plasticity, and density-dependent feedbacks. Fisheries-induced evolution affects recovery in several ways. The first decades of recovery were dominated by demographic and density-dependent processes. Biomass rebuilding was only lightly influenced by fisheries-induced evolution, whereas other stock characteristics such as maturation age, spawning stock biomass, and recruitment were substantially affected, recovering to new demographic equilibria below their preharvest levels. This is because genetic traits took thousands of years to evolve back to preharvest levels, indicating that natural selection driving recovery of these traits is weaker than fisheries-induced selection was. Our results strengthen the case for proactive management of fisheries-induced evolution, as the restoration of genetic traits altered by fishing is slow and may even be impractical. Article in Journal/Newspaper atlantic cod Gadus morhua Institute for Marine Research: Brage IMR Evolutionary Applications 2 3 394 414 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
atlantic cod atlantisk torsk fisheries management fiskeriforvaltning stock collapse bestandssammenbrudd VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
spellingShingle |
atlantic cod atlantisk torsk fisheries management fiskeriforvaltning stock collapse bestandssammenbrudd VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Enberg, Katja Jørgensen, Christian Dunlop, Erin S. Heino, Mikko Dieckmann, Ulf Implications of fisheries-induced evolution for stock rebuilding and recovery |
topic_facet |
atlantic cod atlantisk torsk fisheries management fiskeriforvaltning stock collapse bestandssammenbrudd VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
description |
Open access article Worldwide depletion of fish stocks has led fisheries managers to become increasingly concerned about rebuilding and recovery planning. To succeed, factors affecting recovery dynamics need to be understood, including the role of fisheries-induced evolution. Here we investigate a stock’s response to fishing followed by a harvest moratorium by analyzing an individual-based evolutionary model parameterized for Atlantic cod Gadus morhua from its northern range, representative of long-lived, late-maturing species. The model allows evolution of life-history processes including maturation, reproduction, and growth. It also incorporates environmental variability, phenotypic plasticity, and density-dependent feedbacks. Fisheries-induced evolution affects recovery in several ways. The first decades of recovery were dominated by demographic and density-dependent processes. Biomass rebuilding was only lightly influenced by fisheries-induced evolution, whereas other stock characteristics such as maturation age, spawning stock biomass, and recruitment were substantially affected, recovering to new demographic equilibria below their preharvest levels. This is because genetic traits took thousands of years to evolve back to preharvest levels, indicating that natural selection driving recovery of these traits is weaker than fisheries-induced selection was. Our results strengthen the case for proactive management of fisheries-induced evolution, as the restoration of genetic traits altered by fishing is slow and may even be impractical. |
format |
Article in Journal/Newspaper |
author |
Enberg, Katja Jørgensen, Christian Dunlop, Erin S. Heino, Mikko Dieckmann, Ulf |
author_facet |
Enberg, Katja Jørgensen, Christian Dunlop, Erin S. Heino, Mikko Dieckmann, Ulf |
author_sort |
Enberg, Katja |
title |
Implications of fisheries-induced evolution for stock rebuilding and recovery |
title_short |
Implications of fisheries-induced evolution for stock rebuilding and recovery |
title_full |
Implications of fisheries-induced evolution for stock rebuilding and recovery |
title_fullStr |
Implications of fisheries-induced evolution for stock rebuilding and recovery |
title_full_unstemmed |
Implications of fisheries-induced evolution for stock rebuilding and recovery |
title_sort |
implications of fisheries-induced evolution for stock rebuilding and recovery |
publisher |
Blackwell Publishing Ltd |
publishDate |
2009 |
url |
http://hdl.handle.net/11250/108300 https://doi.org/10.1111/j.1752-4571.2009.00077.x |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
394–414 2 Evolutionary Applications 3 |
op_relation |
urn:issn:1752-4571 http://hdl.handle.net/11250/108300 http://dx.doi.org/10.1111/j.1752-4571.2009.00077.x |
op_doi |
https://doi.org/10.1111/j.1752-4571.2009.00077.x |
container_title |
Evolutionary Applications |
container_volume |
2 |
container_issue |
3 |
container_start_page |
394 |
op_container_end_page |
414 |
_version_ |
1766357754000179200 |