Status and Structure of Two Populations of the Bluehead Sucker (Catostomus discobolus) in the Weber River, Utah

A Tribute to Tributaries: Endangered Fish Distributions within Critical Habitat of the San Juan River, USA

“…Choosing locations attractive to fish within a river network can be advantageous for fish biologists to better capture broadscale movement patterns and define seasonal ranges of fishes (Webber et al. ; Bottcher et al. ).…”

“…), offer productive subadult growth (Webber et al. ), connect habitats for spawning migrations (Weiss et al. ), and provide refugia or foraging outside of main‐stem environments (Cathcart et al.…”

“…Attractive features, such as tributary confluences, can also structure the distribution, diversity, and abundance of fish in a river network depending on species, body size, and life history (Osborne and Wiley 1992). Choosing locations attractive to fish within a river network can be advantageous for fish biologists to better capture broadscale movement patterns and define seasonal ranges of fishes (Webber et al 2012;Bottcher et al 2013).…”

“…Although larger tributaries, such as the White River in the upper Colorado River basin, have been demonstrated to support spawning and use by endangered fishes tagged in main-stem rivers, small tributaries and their confluences may also offer important habitats for the conservation of endemic and imperiled fishes (Webber et al 2013). For example, small tributaries in the Colorado River basin retain larvae (Haynes et al 1984), offer productive subadult growth (Webber et al 2012), connect habitats for spawning migrations (Weiss et al 1998), and provide refugia or foraging outside of mainstem environments (Cathcart et al 2018a). While tributary systems are recognized as crucial habitats for native desert fishes (Fraser et al 2017;Laub et al 2018;Hooley-Underwood et al 2019), most studies do not explore how small tributaries may affect main-stem distributions of fishes.…”

Survival and growth rates of stocked razorback suckers (Xyrauchen texanus) in a wetland of the Green River, Utah

“…Hewitt et al (2010) found PIT-tag antennas helped increase apparent survival estimates (approaching 100%) for spawning Lost River suckers (Deltistes luxatus) in Upper Klamath Lake, Oregon. We have also deployed PIT-tag antennas and detected PIT-tagged fish in the Weber River, Utah (Webber et al, 2012), at Razorback Bar (Webber and Beers, 2014), in a hatchery pond at Ouray National Fish Hatchery, Utah, in Brush Creek (a tributary to the Green River, Utah), in Douglas Creek (a tributary to the White River, Colorado), and in Johnson Bottoms (a Green River wetland on the Ouray National Wildlife Refuge, Utah). It is uncertain how much encounter rates would increase in Baeser Bend with the addition of remote antennas.…”