Restoration in motion: Expanded migration and distribution of silver redhorse Moxostoma anisurum and shorthead redhorse M. macrolepidotum
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Abstract
Habitat fragmentation poses a significant threat to migratory species. Dams are a common form of fragmentation, and recent restoration efforts around the Great Lakes have prioritized dam removal. We used acoustic telemetry to describe migratory movements of two redhorse species in the Sandusky and Cuyahoga rivers, Ohio, USA in relationship to habitat reconnection. Shorthead redhorse (Moxostoma macrolepidotum) typically migrated from both rivers into Lake Erie between May and July, moving 40–248 km straight-line distance from the river before returning the following spring. We recorded individual cumulative distances up to 809 km between spawning seasons. Shorthead redhorse demonstrated tributary fidelity, but individuals from both rivers co-occurred along southern Lake Erie. Silver redhorse (M. anisurum) largely remained in their tagging tributary watersheds year-round. Cuyahoga River silver redhorse moved upstream from March to April 28.8 km on average and passed upstream of the historical Brecksville Dam (removed in 2020), occasionally reaching the next upstream dam. Telemetry data revealed redhorse use of newly available habitat upstream of dam removals and previously undescribed long-range adfluvial migration by shorthead redhorse.
Suggested Citation
Bonjour, S.M., Roberts, J.J., Mills, M.A., Walters, D., Mueller, A.T., Fischer, N.D., Trimbath, R.J., Wagner, C.P., Jenkins, P.I., and Acre, M.R., 2026, Restoration in motion: Expanded migration and distribution of silver redhorse Moxostoma anisurum and shorthead redhorse M. macrolepidotum: Canadian Journal of Fisheries and Aquatic Sciences, v. 83, p. 1-13, https://doi.org/10.1139/cjfas-2025-0330.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Restoration in motion: Expanded migration and distribution of silver redhorse Moxostoma anisurum and shorthead redhorse M. macrolepidotum |
| Series title | Canadian Journal of Fisheries and Aquatic Sciences |
| DOI | 10.1139/cjfas-2025-0330 |
| Volume | 83 |
| Publication Date | May 06, 2026 |
| Year Published | 2026 |
| Language | English |
| Publisher | Canadian Science Publishing |
| Contributing office(s) | Columbia Environmental Research Center, Great Lakes Science Center |
| Description | 13 p. |
| First page | 1 |
| Last page | 13 |
| Country | United States |
| State | Ohio |
| Other Geospatial | Cuyahoga River, Sandusky River |