Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia

Detalhes bibliográficos
Autor(a) principal: Restrepo-Escobar,Natalia
Data de Publicação: 2021
Outros Autores: Yepes-Acevedo,Anny Johanna, Márquez,Edna Judith
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100204
Resumo: ABSTRACT Neotropical catfishes Ageneiosus pardalis, Pimelodus grosskopfii and Sorubim cuspicaudus are migratory fishes of commercial importance that exhibit decreasing populations due to overfishing and other anthropic interventions. This study used species-specific microsatellite loci to test the hypothesis that threatened fish populations show genetic vulnerability signs and are genetically structured in the middle and lower sections of the Cauca River. The studied species exhibit genetic diversity levels higher than the average values reported for Neotropical Siluriformes; however, they seem to have suffered recent bottlenecks and they present significant endogamy levels that are higher for the critically endangered catfish P. grosskopfii. Furthermore, both Ageneiosus pardalis and S. cuspicaudus are each formed by one genetic group, while Pimelodus grosskopfii comprises two coexisting genetic groups. The information obtained in this study is useful for the decision making in management plans that are appropriate for the sustainability of these three species populations within the proposal for the expansion of the hydroelectric development and other anthropic activities.
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spelling Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, ColombiaFreshwater fishGenetic diversityGenetic structureMicrosatellitesSiluriformesABSTRACT Neotropical catfishes Ageneiosus pardalis, Pimelodus grosskopfii and Sorubim cuspicaudus are migratory fishes of commercial importance that exhibit decreasing populations due to overfishing and other anthropic interventions. This study used species-specific microsatellite loci to test the hypothesis that threatened fish populations show genetic vulnerability signs and are genetically structured in the middle and lower sections of the Cauca River. The studied species exhibit genetic diversity levels higher than the average values reported for Neotropical Siluriformes; however, they seem to have suffered recent bottlenecks and they present significant endogamy levels that are higher for the critically endangered catfish P. grosskopfii. Furthermore, both Ageneiosus pardalis and S. cuspicaudus are each formed by one genetic group, while Pimelodus grosskopfii comprises two coexisting genetic groups. The information obtained in this study is useful for the decision making in management plans that are appropriate for the sustainability of these three species populations within the proposal for the expansion of the hydroelectric development and other anthropic activities.Sociedade Brasileira de Ictiologia2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100204Neotropical Ichthyology v.19 n.1 2021reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-2020-0040info:eu-repo/semantics/openAccessRestrepo-Escobar,NataliaYepes-Acevedo,Anny JohannaMárquez,Edna Juditheng2021-03-09T00:00:00Zoai:scielo:S1679-62252021000100204Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2021-03-09T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
title Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
spellingShingle Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
Restrepo-Escobar,Natalia
Freshwater fish
Genetic diversity
Genetic structure
Microsatellites
Siluriformes
title_short Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
title_full Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
title_fullStr Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
title_full_unstemmed Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
title_sort Population genetics of three threatened catfish species in heterogeneous environments of the Cauca River, Colombia
author Restrepo-Escobar,Natalia
author_facet Restrepo-Escobar,Natalia
Yepes-Acevedo,Anny Johanna
Márquez,Edna Judith
author_role author
author2 Yepes-Acevedo,Anny Johanna
Márquez,Edna Judith
author2_role author
author
dc.contributor.author.fl_str_mv Restrepo-Escobar,Natalia
Yepes-Acevedo,Anny Johanna
Márquez,Edna Judith
dc.subject.por.fl_str_mv Freshwater fish
Genetic diversity
Genetic structure
Microsatellites
Siluriformes
topic Freshwater fish
Genetic diversity
Genetic structure
Microsatellites
Siluriformes
description ABSTRACT Neotropical catfishes Ageneiosus pardalis, Pimelodus grosskopfii and Sorubim cuspicaudus are migratory fishes of commercial importance that exhibit decreasing populations due to overfishing and other anthropic interventions. This study used species-specific microsatellite loci to test the hypothesis that threatened fish populations show genetic vulnerability signs and are genetically structured in the middle and lower sections of the Cauca River. The studied species exhibit genetic diversity levels higher than the average values reported for Neotropical Siluriformes; however, they seem to have suffered recent bottlenecks and they present significant endogamy levels that are higher for the critically endangered catfish P. grosskopfii. Furthermore, both Ageneiosus pardalis and S. cuspicaudus are each formed by one genetic group, while Pimelodus grosskopfii comprises two coexisting genetic groups. The information obtained in this study is useful for the decision making in management plans that are appropriate for the sustainability of these three species populations within the proposal for the expansion of the hydroelectric development and other anthropic activities.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100204
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000100204
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1982-0224-2020-0040
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.19 n.1 2021
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
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