Marine reserve design and the evolution of size at maturation in harvested fish
By significantly changing sizeâdependent mortality, fisheries can cause rapid evolution toward earlier maturation in harvested species. Because earlier maturation negatively affects biomass yield and sustainability, ignoring evolutionary changes could significantly reduce the success of fisheries ma...
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ftcdlib:oai:escholarship.org/ark:/13030/qt0zb446n6 2023-05-15T16:19:02+02:00 Marine reserve design and the evolution of size at maturation in harvested fish Baskett, Marissa L Simon A. Levin Steven D. Gaines Jonathan Dushoff 882 - 901 2005-06-01 application/pdf https://escholarship.org/uc/item/0zb446n6 unknown eScholarship, University of California qt0zb446n6 https://escholarship.org/uc/item/0zb446n6 public Ecological applications : a publication of the Ecological Society of America, vol 15, iss 3 fisheries Gadus morhua life history evolution Lutjanus campechanus marine protected areas marine reserves quantitative genetic model rapid evolution Sebastes paucispinis Sebastes ruberrimus size at maturation size-dependent mortality Ecology Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences article 2005 ftcdlib 2021-05-30T17:54:33Z By significantly changing sizeâdependent mortality, fisheries can cause rapid evolution toward earlier maturation in harvested species. Because earlier maturation negatively affects biomass yield and sustainability, ignoring evolutionary changes could significantly reduce the success of fisheries management policy. With a quantitative genetic model of size at maturation that incorporates phenotype plasticity, we examine the impact of different management strategies including traditional effort control and Marine Protected Areas (MPAs). After verifying the model's accuracy, using historical trajectories for size at maturation in cod (Gadus morhua), we test model predictions under different management schemes with life history parameters for red snapper (Lutjanus campechanus) and two rockfish species (Sebastes paucispinis and S. ruberrimus). The model results show that noâtake MPAs can protect against strong fisheriesâbased selection for earlier maturation. The potential to protect against anthropogenic selection declines with increasing fragmentation of reserves to networks of small reserves. Accounting for the evolution of size at maturation increases the predicted biomass contribution from MPA populations to harvested populations. Traditional management approaches, such as adjustments to harvest rate and maximum size limits, can lead to equivalent protection against anthropogenic selection and equivalent or greater longâterm biomass yield than establishing MPAs; however, the protection and yield from establishing noâtake MPAs appears more robust to uncertainty. Article in Journal/Newspaper Gadus morhua University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
fisheries Gadus morhua life history evolution Lutjanus campechanus marine protected areas marine reserves quantitative genetic model rapid evolution Sebastes paucispinis Sebastes ruberrimus size at maturation size-dependent mortality Ecology Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences |
spellingShingle |
fisheries Gadus morhua life history evolution Lutjanus campechanus marine protected areas marine reserves quantitative genetic model rapid evolution Sebastes paucispinis Sebastes ruberrimus size at maturation size-dependent mortality Ecology Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Baskett, Marissa L Simon A. Levin Steven D. Gaines Jonathan Dushoff Marine reserve design and the evolution of size at maturation in harvested fish |
topic_facet |
fisheries Gadus morhua life history evolution Lutjanus campechanus marine protected areas marine reserves quantitative genetic model rapid evolution Sebastes paucispinis Sebastes ruberrimus size at maturation size-dependent mortality Ecology Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences |
description |
By significantly changing sizeâdependent mortality, fisheries can cause rapid evolution toward earlier maturation in harvested species. Because earlier maturation negatively affects biomass yield and sustainability, ignoring evolutionary changes could significantly reduce the success of fisheries management policy. With a quantitative genetic model of size at maturation that incorporates phenotype plasticity, we examine the impact of different management strategies including traditional effort control and Marine Protected Areas (MPAs). After verifying the model's accuracy, using historical trajectories for size at maturation in cod (Gadus morhua), we test model predictions under different management schemes with life history parameters for red snapper (Lutjanus campechanus) and two rockfish species (Sebastes paucispinis and S. ruberrimus). The model results show that noâtake MPAs can protect against strong fisheriesâbased selection for earlier maturation. The potential to protect against anthropogenic selection declines with increasing fragmentation of reserves to networks of small reserves. Accounting for the evolution of size at maturation increases the predicted biomass contribution from MPA populations to harvested populations. Traditional management approaches, such as adjustments to harvest rate and maximum size limits, can lead to equivalent protection against anthropogenic selection and equivalent or greater longâterm biomass yield than establishing MPAs; however, the protection and yield from establishing noâtake MPAs appears more robust to uncertainty. |
format |
Article in Journal/Newspaper |
author |
Baskett, Marissa L Simon A. Levin Steven D. Gaines Jonathan Dushoff |
author_facet |
Baskett, Marissa L Simon A. Levin Steven D. Gaines Jonathan Dushoff |
author_sort |
Baskett, Marissa L |
title |
Marine reserve design and the evolution of size at maturation in harvested fish |
title_short |
Marine reserve design and the evolution of size at maturation in harvested fish |
title_full |
Marine reserve design and the evolution of size at maturation in harvested fish |
title_fullStr |
Marine reserve design and the evolution of size at maturation in harvested fish |
title_full_unstemmed |
Marine reserve design and the evolution of size at maturation in harvested fish |
title_sort |
marine reserve design and the evolution of size at maturation in harvested fish |
publisher |
eScholarship, University of California |
publishDate |
2005 |
url |
https://escholarship.org/uc/item/0zb446n6 |
op_coverage |
882 - 901 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Ecological applications : a publication of the Ecological Society of America, vol 15, iss 3 |
op_relation |
qt0zb446n6 https://escholarship.org/uc/item/0zb446n6 |
op_rights |
public |
_version_ |
1766005352209317888 |