Fisheries management in spatially structured Atlantic salmon populations

International audience Despite extensive research on the causes and consequences of spatial dispersal, the implications of connectivity for conservation and management are poorly appreciated, especially for species for which dispersal rates are ignored or considered negligible such as salmonids. For...

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Main Authors: Lamarins, Amaia, Prévost, Etienne, Carlson, Stephanie, Buoro, Mathieu
Other Authors: Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Environmental Science, Policy, and Management Berkeley (ESPM), University of California Berkeley (UC Berkeley), University of California (UC)-University of California (UC)
Format: Conference Object
Language:English
Published: HAL CCSD 2022
Subjects:
Online Access:https://hal.inrae.fr/hal-03790558
https://hal.inrae.fr/hal-03790558/document
https://hal.inrae.fr/hal-03790558/file/Lamarins2022NowpasComOrale.pdf
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spelling ftunivnantes:oai:HAL:hal-03790558v1 2023-05-15T15:31:40+02:00 Fisheries management in spatially structured Atlantic salmon populations Lamarins, Amaia Prévost, Etienne Carlson, Stephanie Buoro, Mathieu Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Environmental Science, Policy, and Management Berkeley (ESPM) University of California Berkeley (UC Berkeley) University of California (UC)-University of California (UC) Saint Etienne de Baigorry, France 2022-03-01 https://hal.inrae.fr/hal-03790558 https://hal.inrae.fr/hal-03790558/document https://hal.inrae.fr/hal-03790558/file/Lamarins2022NowpasComOrale.pdf en eng HAL CCSD hal-03790558 https://hal.inrae.fr/hal-03790558 https://hal.inrae.fr/hal-03790558/document https://hal.inrae.fr/hal-03790558/file/Lamarins2022NowpasComOrale.pdf info:eu-repo/semantics/OpenAccess NoWPaS 2022 https://hal.inrae.fr/hal-03790558 NoWPaS 2022, Mar 2022, Saint Etienne de Baigorry, France dispersal fisheries management modeling [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/conferenceObject Conference papers 2022 ftunivnantes 2023-02-22T01:33:44Z International audience Despite extensive research on the causes and consequences of spatial dispersal, the implications of connectivity for conservation and management are poorly appreciated, especially for species for which dispersal rates are ignored or considered negligible such as salmonids. For such species, exploitation by fishing usually does not consider populations connectivity, and fisheries management rather focuses at population scale. To date, prior work already warned about the danger of ignoring spatial structure and connectivity of populations but a very few studies have explicitly compared different strategies of exploitation while also considering the spatial structure of populations. We use a spatially explicit demo-genetic agent-based model as a virtual laboratory to mimic a realistic Atlantic salmon populations network and compare several spatialized fishing strategies (e.g. fishing all populations, sink, or source only). We assess their consequences at the demographic, phenotypic and genotypic levels. We show different effects of spatialized exploitation strategies on metapopulation size, stability and synchrony, as well as life history strategies and genetic evolution of traits. Importantly, we show that the consequences of spatialized fishing strategies depend on the exploitation pressure acting on the local populations and on the metapopulation as a whole. Altogether, we argue that it is critical to account for metapopulation structure in defining fisheries management because spatialized exploitation of connected populations can lead to various demographic outcomes but also complex evolutionary trajectories. Conference Object Atlantic salmon Université de Nantes: HAL-UNIV-NANTES Etienne ENVELOPE(-63.217,-63.217,-65.167,-65.167)
institution Open Polar
collection Université de Nantes: HAL-UNIV-NANTES
op_collection_id ftunivnantes
language English
topic dispersal
fisheries
management
modeling
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
spellingShingle dispersal
fisheries
management
modeling
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Lamarins, Amaia
Prévost, Etienne
Carlson, Stephanie
Buoro, Mathieu
Fisheries management in spatially structured Atlantic salmon populations
topic_facet dispersal
fisheries
management
modeling
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
description International audience Despite extensive research on the causes and consequences of spatial dispersal, the implications of connectivity for conservation and management are poorly appreciated, especially for species for which dispersal rates are ignored or considered negligible such as salmonids. For such species, exploitation by fishing usually does not consider populations connectivity, and fisheries management rather focuses at population scale. To date, prior work already warned about the danger of ignoring spatial structure and connectivity of populations but a very few studies have explicitly compared different strategies of exploitation while also considering the spatial structure of populations. We use a spatially explicit demo-genetic agent-based model as a virtual laboratory to mimic a realistic Atlantic salmon populations network and compare several spatialized fishing strategies (e.g. fishing all populations, sink, or source only). We assess their consequences at the demographic, phenotypic and genotypic levels. We show different effects of spatialized exploitation strategies on metapopulation size, stability and synchrony, as well as life history strategies and genetic evolution of traits. Importantly, we show that the consequences of spatialized fishing strategies depend on the exploitation pressure acting on the local populations and on the metapopulation as a whole. Altogether, we argue that it is critical to account for metapopulation structure in defining fisheries management because spatialized exploitation of connected populations can lead to various demographic outcomes but also complex evolutionary trajectories.
author2 Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP)
Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Department of Environmental Science, Policy, and Management Berkeley (ESPM)
University of California Berkeley (UC Berkeley)
University of California (UC)-University of California (UC)
format Conference Object
author Lamarins, Amaia
Prévost, Etienne
Carlson, Stephanie
Buoro, Mathieu
author_facet Lamarins, Amaia
Prévost, Etienne
Carlson, Stephanie
Buoro, Mathieu
author_sort Lamarins, Amaia
title Fisheries management in spatially structured Atlantic salmon populations
title_short Fisheries management in spatially structured Atlantic salmon populations
title_full Fisheries management in spatially structured Atlantic salmon populations
title_fullStr Fisheries management in spatially structured Atlantic salmon populations
title_full_unstemmed Fisheries management in spatially structured Atlantic salmon populations
title_sort fisheries management in spatially structured atlantic salmon populations
publisher HAL CCSD
publishDate 2022
url https://hal.inrae.fr/hal-03790558
https://hal.inrae.fr/hal-03790558/document
https://hal.inrae.fr/hal-03790558/file/Lamarins2022NowpasComOrale.pdf
op_coverage Saint Etienne de Baigorry, France
long_lat ENVELOPE(-63.217,-63.217,-65.167,-65.167)
geographic Etienne
geographic_facet Etienne
genre Atlantic salmon
genre_facet Atlantic salmon
op_source NoWPaS 2022
https://hal.inrae.fr/hal-03790558
NoWPaS 2022, Mar 2022, Saint Etienne de Baigorry, France
op_relation hal-03790558
https://hal.inrae.fr/hal-03790558
https://hal.inrae.fr/hal-03790558/document
https://hal.inrae.fr/hal-03790558/file/Lamarins2022NowpasComOrale.pdf
op_rights info:eu-repo/semantics/OpenAccess
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