Habitat associations of shovelnose sturgeon Scaphirhynchus platorynchus (Rafinesque, 1820) in the lower Platte River, Nebraska

摘要: Summary Human induced alterations of river systems are ubiquitous throughout the world. Alterations have reduced riverine habitat and negatively affected species; therefore, it is crucial to understand what habitats important fish at multiple scales. Most research has focused around microhabitats (i.e., depth) with little effort on how reach scale geomorphic landscape) influences abundance. We examined associations shovelnose sturgeon sampled two gears (trotlines trammel nets) spatial scales in lower Platte River, NE, a system that not been overtly altered physical description. At microhabitat scale, abundance was influenced by velocities temperatures within River. The influence velocity contradictory between suggesting gear limitations may present. Shovelnose increased close proximity tributary interaction River both gears. Portions relatively medium valley width, low-medium sinuosity, wide channel had lowest for Our results provide insight landscape help managers policy makers develop sound approaches protecting mitigating other species.