A1 Journal article (refereed)
Atlantic cod recovery from the Allee effect zone : contrasting ecological and evolutionary rescue (2020)


Kuparinen, A., & Uusi-Heikkilä, S. (2020). Atlantic cod recovery from the Allee effect zone : contrasting ecological and evolutionary rescue. Fish and Fisheries, 21(5), 916-926. https://doi.org/10.1111/faf.12470


JYU authors or editors


Publication details

All authors or editorsKuparinen, Anna; Uusi-Heikkilä, Silva

Journal or seriesFish and Fisheries

ISSN1467-2960

eISSN1467-2979

Publication year2020

Volume21

Issue number5

Pages range916-926

PublisherWiley-Blackwell

Publication countryUnited Kingdom

Publication languageEnglish

DOIhttps://doi.org/10.1111/faf.12470

Research data linkhttps://doi.org/10.5061/dryad.dbrv15dx2

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/70413


Abstract

The ability of a population to recover from disturbances is fundamental for its persistence. Impaired population recovery might be associated with a demographic Allee effect. Immigration from adjacent populations could accelerate the recovery not only by promoting population growth beyond the Allee effect threshold but also by bringing in advantageous genotypes. We explore the nature and role of ecological and evolutionary rescue in an Atlantic cod (Gadus morhua Gadidae) population fished below its Allee effect threshold. We utilize an eco-evolutionary model and simulate scenarios, where the target population evolves in response to selective fishing and sample immigrants from (a) a source population similarly adapted to fishing (post-fishing genotypes) or (b) an unexploited source population with natural genetic and phenotypic diversity (pre-fishing genotypes). Immigration of pre-fishing genotypes enhances the recovery due to the larger body sizes and the flow of associated genes. Post-fishing immigrants can also promote the population abundance recovery, but they increase uncertainty about recovery times as compared to pre-fishing immigrants and do not promote evolutionary recovery. Our results stress the importance of maintaining genetic and phenotypic diversity and suggest that marine protected areas can serve as an important source of immigrants to promote both the demographic and evolutionary recovery of exploited populations.


Keywordsfish populationspopulationspopulation dynamicsintensive fishingpopulation ecologyadaptation (change)resilienceAtlantic cod

Free keywordsadaptation; depensation; harvest-induced evolution; harvesting; population collapse; population rebuild; resilience


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Ministry reportingYes

VIRTA submission year2020

JUFO rating3


Last updated on 2024-12-10 at 07:01