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Marine food web perspective to fisheries‐induced evolution

Fisheries exploitation can cause genetic changes in heritable traits of targeted stocks. The direction of selective pressure forced by harvest acts typically in reverse to natural selection and selects for explicit life histories, usually for younger and smaller spawners with deprived spawning poten...

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Detalles Bibliográficos
Autores principales: Hočevar, Sara, Kuparinen, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8549614/
https://www.ncbi.nlm.nih.gov/pubmed/34745332
http://dx.doi.org/10.1111/eva.13259
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author Hočevar, Sara
Kuparinen, Anna
author_facet Hočevar, Sara
Kuparinen, Anna
author_sort Hočevar, Sara
collection PubMed
description Fisheries exploitation can cause genetic changes in heritable traits of targeted stocks. The direction of selective pressure forced by harvest acts typically in reverse to natural selection and selects for explicit life histories, usually for younger and smaller spawners with deprived spawning potential. While the consequences that such selection might have on the population dynamics of a single species are well emphasized, we are just beginning to perceive the variety and severity of its propagating effects within the entire marine food webs and ecosystems. Here, we highlight the potential pathways in which fisheries‐induced evolution, driven by size‐selective fishing, might resonate through globally connected systems. We look at: (i) how a size truncation may induce shifts in ecological niches of harvested species, (ii) how a changed maturation schedule might affect the spawning potential and biomass flow, (iii) how changes in life histories can initiate trophic cascades, (iv) how the role of apex predators may be shifting and (v) whether fisheries‐induced evolution could codrive species to depletion and biodiversity loss. Globally increasing effective fishing effort and the uncertain reversibility of eco‐evolutionary change induced by fisheries necessitate further research, discussion and precautionary action considering the impacts of fisheries‐induced evolution within marine food webs.
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spelling pubmed-85496142021-11-04 Marine food web perspective to fisheries‐induced evolution Hočevar, Sara Kuparinen, Anna Evol Appl Special Issue Articles Fisheries exploitation can cause genetic changes in heritable traits of targeted stocks. The direction of selective pressure forced by harvest acts typically in reverse to natural selection and selects for explicit life histories, usually for younger and smaller spawners with deprived spawning potential. While the consequences that such selection might have on the population dynamics of a single species are well emphasized, we are just beginning to perceive the variety and severity of its propagating effects within the entire marine food webs and ecosystems. Here, we highlight the potential pathways in which fisheries‐induced evolution, driven by size‐selective fishing, might resonate through globally connected systems. We look at: (i) how a size truncation may induce shifts in ecological niches of harvested species, (ii) how a changed maturation schedule might affect the spawning potential and biomass flow, (iii) how changes in life histories can initiate trophic cascades, (iv) how the role of apex predators may be shifting and (v) whether fisheries‐induced evolution could codrive species to depletion and biodiversity loss. Globally increasing effective fishing effort and the uncertain reversibility of eco‐evolutionary change induced by fisheries necessitate further research, discussion and precautionary action considering the impacts of fisheries‐induced evolution within marine food webs. John Wiley and Sons Inc. 2021-06-24 /pmc/articles/PMC8549614/ /pubmed/34745332 http://dx.doi.org/10.1111/eva.13259 Text en © 2021 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Special Issue Articles
Hočevar, Sara
Kuparinen, Anna
Marine food web perspective to fisheries‐induced evolution
title Marine food web perspective to fisheries‐induced evolution
title_full Marine food web perspective to fisheries‐induced evolution
title_fullStr Marine food web perspective to fisheries‐induced evolution
title_full_unstemmed Marine food web perspective to fisheries‐induced evolution
title_short Marine food web perspective to fisheries‐induced evolution
title_sort marine food web perspective to fisheries‐induced evolution
topic Special Issue Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8549614/
https://www.ncbi.nlm.nih.gov/pubmed/34745332
http://dx.doi.org/10.1111/eva.13259
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