Swimming speeds of grass carp in response to turbulence
In this experimental series we studied the swimming capabilities and response of grass carp (Ctenopharyngodon idella) larvae to flow turbulence in a laboratory flume. We compared three different experimental configurations, representing in-stream obstructions commonly found in natural streams (e.g. a gravel bump, a single vertical cylinder, and patches of submerged rigid vegetation). Grass carp larvae (post gas bladder emergence) were introduce to each experimental configuration and subjected to a variety of hydrodynamic forces of different magnitudes and scales. We varied the flow velocities and water depths and found threshold values of turbulent kinetic energy and Reynolds stresses that triggered an apparent response in larval trajectories, and we estimated horizontal and vertical swimming speeds for each flow condition.
Citation Information
| Publication Year | 2020 |
|---|---|
| Title | Swimming speeds of grass carp in response to turbulence |
| DOI | 10.5066/P9P81CUX |
| Authors | Andres F. Prada Sepulveda, Amy E George, Benjamin H Stahlschmidt, Patrick R Jackson, Duane C Chapman, Rafael O. Tinoco |
| Product Type | Data Release |
| Record Source | USGS Digital Object Identifier Catalog |
| USGS Organization | Columbia Environmental Research Center |
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Identifying turbulence features hindering swimming capabilities of grass carp larvae (Ctenopharyngodon idella) through submerged vegetation
Duane C Chapman (Former Employee)
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Identifying turbulence features hindering swimming capabilities of grass carp larvae (Ctenopharyngodon idella) through submerged vegetation
Aquatic vegetation can provide habitat and refuge for a variety of species in streams. However, the flow features generated by submerged patches of vegetation can also pose a challenge for fish larvae. We conducted a series of experiments with live grass carp larvae (starting ∼50 h post hatch) in a laboratory racetrack flume, using a submerged array of rigid cylinders to mimic vegetation. We usedAuthorsRafael O. Tinoco, Andres F. Prada, Amy E. George, Benjamin H. Stahlschmidt, P. Ryan Jackson, Duane Chapman - Connect
Duane C Chapman (Former Employee)
Research Fish Biologist