Movements and habitat use of Silver Carp in the Arkansas and White rivers
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Abstract
Silver Carp Hypophthalmichthys molitrix is an invasive species found throughout the Mississippi River basin. Efforts have been made to control Silver Carp populations through removal programs and movement barrier implementation. Up to date information on diel, seasonal, and annual movements and habitat use by Silver Carp will benefit these efforts. Studies of Silver Carp movement are prevalent in the upper Mississippi River, Ohio River, and tributaries, but rare in tributaries of the lower Mississippi River. Between June 2021 and May 2022, we quantified average movement rates and residency periods of 48 Silver Carp in the free-flowing lower White River and lock-and-dam fragmented lower Arkansas River using passive acoustic telemetry arrays and internal implant acoustic transmitters. We also manually tracked Silver Carp in the two rivers during the four seasons to estimate diel movement rates and use of different habitats. On an annual scale, Silver Carp in the White River moved at faster rates than Silver Carp in the Arkansas River and were recorded more times by acoustic receivers. Diel movement rates varied by season in both rivers but were low overall. Silver Carp used lentic habitats more often than lotic habitats. Overall, results suggest the numerous locks and dams of the McClellan-Kerr Arkansas River Navigation System may limit large-scale, annual movement of Silver Carp in the Arkansas River compared to the White River. Low hourly diel movement rates and high occupancy of lentic habitats also should enable effective harvest of Silver Carp using active gears in those lentic habitats.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Movements and habitat use of Silver Carp in the Arkansas and White rivers |
| Series title | Journal of Fish and Wildlife Management |
| DOI | 10.3996/jfwm-23-066 |
| Volume | 15 |
| Issue | 2 |
| Publication Date | March 13, 2025 |
| Year Published | 2025 |
| Language | English |
| Publisher | Allen Press |
| Contributing office(s) | Coop Res Unit Atlanta |
| Description | 17 p. |
| First page | 493 |
| Last page | 509 |
| Country | United States |
| State | Arkansas |
| Other Geospatial | Arkansas River, White River |