INVESTIGADORES
CARRIQUIRIBORDE Pedro
artículos
Título:
Seasonal variation in genetic population structure of sábalo (Prochilodus lineatus) in the Lower Uruguay River
Autor/es:
RUEDA, E.C.; CARRIQUIRIBORDE, P.; MONZÓN, A,M.; SOMOZA, G.M.; ORTÍ, G.
Revista:
GENETICA
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013 p. 401 - 407
ISSN:
0016-6707
Resumen:
Prochilodus lineatus is a highly migratory fish
species that sustains the most important commercial fishery
of Parana´-Paraguay basin. Migratory patterns are poorly
known and only few population genetic studies are available
for this species in the Upper Parana´. To assess genetic
population structure, we genotyped a sample of 93 individuals
from the Lower Uruguay River close to Gualeguaychu
´ city (Entre Rý´os, Argentina) at three different
times, July 2008 (Winter), September 2008 (Spring) and
May 2009 (Fall). All individuals were genotyped for 12
microsatellite loci previously found to be informative to
assess populations of P. lineatus. Our results show seasonal
variation of the genetic sub-structuring at this locality that
may be related to the presence of different migratory stocks
throughout the year. The Fall sample includes an additional
genetic cluster of individuals not detected in Winter and
Spring, suggesting that this species should be considered a
mixed stock fishery.