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dc.contributor.author
Del Pazo, F.
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Sánchez, Sebastián
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Posner, Victoria
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Sciara, Andrés A.
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Arranz, Silvia Eda
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Villanova, Gabriela V.
dc.date.available
2021-08-13T15:22:22Z
dc.date.issued
2021-02
dc.identifier.citation
Del Pazo, F.; Sánchez, Sebastián; Posner, Victoria; Sciara, Andrés A.; Arranz, Silvia Eda; et al.; Genetic diversity and structure of the commercially important native fish pacu (Piaractus mesopotamicus) from cultured and wild fish populations: relevance for broodstock management; Springer; Aquaculture International; 29; 1; 2-2021; 289-305
dc.identifier.issn
0967-6120
dc.identifier.uri
http://hdl.handle.net/11336/138277
dc.description.abstract
Pacu (Piaractus mesopotamicus) is one of the most important Neotropical freshwater fish species produced by aquaculture in South America. This study is the first attempt to inquire about aquaculture stocks in Argentina regarding genetic diversity and structure. Neither genetic characterization nor pedigree records are available for pacu stocks in farms in Argentina. The presence of hybrids in both natural environment (Lower Paraná River) and farms has not been evaluated yet at the southern region of pacu distribution. Genetic characterization of pacu broodstocks, corresponding to 8 farms, and wild individuals from four areas at Lower Paraná River was performed. Pacu hybrids were not detected neither in wild nor in farm stocks analyzed. In general, similar levels of genetic diversity were observed between cultured and wild fish populations. Global genetic differentiation (Fst = 0.055) indicated a low level of structure and AMOVA showed that genetic variation was mostly within populations. Reduced contemporary effective population size (Ne) was observed, and probably reflects the bottleneck by founder effect in farmed fish populations. Moreover, kinship analysis showed that in fish farms, on average, 43.00% of the individuals were genetically related, whereas in wild population it was 36.40%. We recommend that broodstock management practices, such as using large Ne, single pair mating, precise records, and tagging of brood fish, should be implemented to avoid unintentional mismanagement.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AQUACULTURE
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GENETIC STRUCTURE
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INBREEDING
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MICROSATELLITES
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SERRASALMIDAE
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Otras Biotecnología Agropecuaria
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Biotecnología Agropecuaria
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CIENCIAS AGRÍCOLAS
dc.title
Genetic diversity and structure of the commercially important native fish pacu (Piaractus mesopotamicus) from cultured and wild fish populations: relevance for broodstock management
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-30T18:49:55Z
dc.journal.volume
29
dc.journal.number
1
dc.journal.pagination
289-305
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Del Pazo, F.. Universidad Nacional de Rosario; Argentina
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Fil: Sánchez, Sebastián. Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias. Instituto de Ictiología del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina
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Fil: Posner, Victoria. Universidad Nacional de Rosario; Argentina
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Fil: Sciara, Andrés A.. Universidad Nacional de Rosario; Argentina
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Fil: Arranz, Silvia Eda. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Villanova, Gabriela V.. Universidad Nacional de Rosario; Argentina
dc.journal.title
Aquaculture International
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10499-020-00626-w
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10499-020-00626-w
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