TY - GEN
T1 - Silver Carp Population Genetics from Tributaries of a Large Midwestern River
AU - Schaick, Samuel
AU - Moody-Carpenter, Cassi
AU - Schrey, Aaron
AU - Miller, Katie
AU - Wahl, David
AU - Colombo, Robert
PY - 2019
Y1 - 2019
N2 - Silver Carp are a non-native fish species that have deleterious effects on the ecosystems they invade. Because of their destructive nature, fisheries managers devote substantial time and effort to limit the spread of these fishes. Better understanding patterns of Silver Carp reproduction and dispersal can help to better manage this invader. To determine spawning locations, we used drift nets and larval push nets in three tributaries the Wabash River to capture larval Hypophthalmichthys (Silver and Bighead Carp) in 2016 and 2017. Further, we used microsatellite loci to determine if genetic differences existed between larval Hypophthalmichthys in our three study tributaries. In total, 1,246 Hypophthalmichthys were collected from three tributaries, with the Little Wabash River and Embarras River producing roughly 83% and 16% of larvae. Having large enough sample sizes at two sites on the Little Wabash River and one site on the Embarras River, we performed genetic analyses and found all three sites had high levels of genetic diversity. Additionally, we found minimal inbreeding or outbreeding present. The middle Little Wabash and lower Embarras River samples were found to be genetically different. We expect this research to improve our understanding of Asian carp reproduction and help fisheries professionals to better mediate their spread.
AB - Silver Carp are a non-native fish species that have deleterious effects on the ecosystems they invade. Because of their destructive nature, fisheries managers devote substantial time and effort to limit the spread of these fishes. Better understanding patterns of Silver Carp reproduction and dispersal can help to better manage this invader. To determine spawning locations, we used drift nets and larval push nets in three tributaries the Wabash River to capture larval Hypophthalmichthys (Silver and Bighead Carp) in 2016 and 2017. Further, we used microsatellite loci to determine if genetic differences existed between larval Hypophthalmichthys in our three study tributaries. In total, 1,246 Hypophthalmichthys were collected from three tributaries, with the Little Wabash River and Embarras River producing roughly 83% and 16% of larvae. Having large enough sample sizes at two sites on the Little Wabash River and one site on the Embarras River, we performed genetic analyses and found all three sites had high levels of genetic diversity. Additionally, we found minimal inbreeding or outbreeding present. The middle Little Wabash and lower Embarras River samples were found to be genetically different. We expect this research to improve our understanding of Asian carp reproduction and help fisheries professionals to better mediate their spread.
KW - INHS
UR - https://midwestfishwildlifeconferen2019.sched.com/event/INkR/fisheries-invasive-species-3-silver-carp-population-genetics-from-tributaries-of-a-large-midwestern-river
M3 - Conference contribution
BT - Midwest Fish and Wildlife Conference 2019
ER -