Data include ID and 12 microsatelitte loci genotypes of juveniles collected in 2005. IDs were marked as BDF-, BDM-, WDF-, and WDM-. DF and DM represent live and dead juveniles, respecitively, which were collected and reared in streamside hatcheries (B: Black Lake hatchery; W: Wolf Lake hatchery) for three months before being released to the river.