Movement dynamics of smallmouth bass (Micropterus dolomieu) in a large river-tributary system
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Abstract
Smallmouth bass, Micropterus dolomieu Lacepède, movement dynamics were investigated in a connected mainstem river-tributary system. Smallmouth bass moved large distances annually (n = 84 fish, average = 24.6 ± 25.9 km, range = 0.03 to 118 km) and had three peak movement periods (pre-spawn, post-spawn and overwintering). Movement into and out of tributaries was common, but the movement between mainstem river and tributary habitats varied among tagging locations and season. In general, a large proportion of fish that were tagged in tributaries moved out of the tributaries after spawning (22/30 fish). Because of the importance of fish movement patterns on population dynamics, the observed individual variability in movement, quantified using a hierarchical model, and the potential for long-distance movements are important considerations for smallmouth bass conservation and management. In addition, mainstem river-tributary connectivity appears to play an important role for smallmouth bass during key life history events.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Movement dynamics of smallmouth bass (Micropterus dolomieu) in a large river-tributary system |
| Series title | Fisheries Management and Ecology |
| DOI | 10.1111/fme.12369 |
| Volume | 26 |
| Issue | 6 |
| Year Published | 2019 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Coop Res Unit Leetown |
| Description | 10 p. |
| First page | 590 |
| Last page | 599 |
| Country | United States |
| State | Pennsylvania |
| Other Geospatial | West Branch Susquehanna River |
| Google Analytic Metrics | Metrics page |