Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12008/28680

Título:

Mitochondrial DNA variation reveals the presence of two management units in the sábalo Prochilodus lineatus (Characiformes: Prochilodontidae) from La Plata River basin

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Autor:

Márquez Herney, Carlos Alejandro
Stareczek, Sofía
Caraccio, María Noel
Carrera, Inés
Errico, Eugenia
Pereira, Alfredo Nicolás

Tutor:

Tipo de documento:

Artículo

Editor:

Plaza, G.

Palabras clave:

Prochilodus lineatus
Continental fisheries
Population genetics
Stock discrimination
Uruguay River
Paraná River

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Año de publicación:

2019

Contenido:

Resumen:

The La Plata River basin, the second largest drainage basin in South America, supports important fisheries, in which the sábalo Prochilodus lineatus is the leading species measured as extracted volumes. To characterize the population structure of the sábalo in the middle and lower regions of the La Plata River basin, cytochrome b DNA sequences of 121 samples collected in La Plata, Paraná and Uruguay rivers were used. Results suggest the presence of at least two populations: one that we called “southern population” uses the La Plata River and the lower sections of the Paraná and Uruguay rivers and another population (called here “northern population”) in the middle section of the Uruguay and Paraná rivers. The southern population would have a larger effective population size and coalescence-based analyses reveal an asymmetric gene flow, mainly from north to south. A striking result is that samples from the middle sections of the Paraná and Uruguay rivers are more alike to each other than they are to the other samples of their respective rivers. This similarity could be explained by historical reasons, probably as a consequence of the proximity that both rivers had until 100,000 years ago. The presence of different management units being exploited by the continental fi

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Pontificia Universidad Católica de Valparaiso

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Latin American Journal of Aquatic Research, 2019, 47(4): 586-594

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Citación:

Márquez Herney, C, Stareczek, S, Caraccio, M, y otros "Mitochondrial DNA variation reveals the presence of two management units in the sábalo Prochilodus lineatus (Characiformes: Prochilodontidae) from La Plata River basin". Latin American Journal of Aquatic Research. [en línea] 2019, 47(4): 586-594. 9 h. DOI: 10.3856/vol47-issue4-fulltext-1

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0718-560X

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Licencia Creative Commons Atribución (CC - By 4.0)
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