Sediment Characteristics and Transport in the Kootenai River White Sturgeon Critical Habitat near Bonners Ferry, Idaho

Fosness, Ryan L.; Williams, Marshall L.

doi:10.3133/sir20095228

Cited by 6 publications

(13 citation statements)

References 8 publications

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“…Contrary to the species addition concept of increased species richness with downstream progression (Sheldon, ), species richness was greatest in the middle (braided) section of the Kootenai River. The braided section is a transitional zone characterized by high habitat complexity (low depths, variable water velocities, braided channel type; Fosness and Williams, ). In addition to high habitat complexity, the braided section likely also has high levels of habitat dynamism when compared with those in meander and canyon sections.…”

Section: Discussionmentioning

confidence: 99%

“…The Idaho portion of the Kootenai River has three geomorphic sections (canyon, braided and meander; Fosness and Williams, ; Figure ). The canyon section (257–312 river kilometre [rkm]) has high current velocities (>1 m/s), large substrate (cobble and boulder) and limited channel movement.…”

Section: Methodsmentioning

confidence: 99%

“…The most downstream section of the Kootenai River in Idaho is the meander section. The meander section (120–246 rkm) connects to Kootenay Lake, British Columbia, Canada, and is characterized by low water velocities (<0.5 m/s), fine substrate (silt and sand) and high maximum depths (>25 m; Fosness and Williams, ).…”

Section: Methodsmentioning

confidence: 99%

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Fish Assemblage Structure and Habitat Associations in a Large Western River System

2015

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Longitudinal gradients of fish assemblage and habitat structure were investigated in the Kootenai River of northern Idaho. A total of 43 500‐m river reaches was sampled repeatedly with several techniques (boat‐mounted electrofishing, hoop nets and benthic trawls) in the summers of 2012 and 2013. Differences in habitat and fish assemblage structure were apparent along the longitudinal gradient of the Kootenai River. Habitat characteristics (e.g. depth, substrate composition and water velocity) were related to fish assemblage structure in three different geomorphic river sections. Upper river sections were characterized by native salmonids (e.g. mountain whitefish Prosopium williamsoni), whereas native cyprinids (peamouth Mylocheilus caurinus, northern pikeminnow Ptychocheilus oregonensis) and non‐native fishes (pumpkinseed Lepomis gibbosus, yellow perch Perca flavescens) were common in the downstream section. Overall, a general pattern of species addition from upstream to downstream sections was discovered and is likely related to increased habitat complexity and additions of non‐native species in downstream sections. Assemblage structure of the upper sections were similar, but were both dissimilar to the lower section of the Kootenai River. Species‐specific hurdle regressions indicated the relationships among habitat characteristics and the predicted probability of occurrence and relative abundance varied by species. Understanding fish assemblage structure in relation to habitat could improve conservation efforts of rare fishes and improve management of coldwater river systems. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Fish Assemblage Structure and Habitat Associations in a Large Western River System

2015

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“…The experiment site is located on two relatively straight 120 m wide sections of the main river channel and a narrower 20 m wide straight side channel (Figure 1). Bed substrate was similar for all sites and ranged from coarse gravel to cobbles with particle diameters between 20.8 and 78.2 mm ( D 16 and D 84 ) with a median particle size of 40 mm [ Fosness and Williams , 2009]. The riverbank is composed of rough gravel and is approximately 3 m wide followed by a steep 6 m elevation rise to the floodplain.…”

Section: Experiments Site Descriptionmentioning

confidence: 99%

Frequency–wavenumber velocity spectra, Taylor's hypothesis, and length scales in a natural gravel bed river

MacMahan

Reniers

Ashley

et al. 2012

Water Resources Research

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[1] Macroscale turbulent coherent flow structures in a natural fast-flowing river were examined with a combination of a novel 2 MHz Acoustic Doppler Beam (ADB) and a Maximum Likelihood Estimator (MLE) to characterize the streamwise horizontal length scales and persistence of coherent flow structures by measuring the frequency ( f )-streamwise-wavenumber (k s ) energy density velocity spectrum, E( f, k s ), for the first time in natural rivers. The ADB was deployed under a range of Froude numbers (0.1-0.6) at high Reynolds numbers ($10 6 ) based on depth and velocity conditions within a gravel bed reach of the Kootenai River, Idaho. The MLE employed on the ADB data increased our ability to describe river motions with relatively long (>10 m) length scales in $1 m water depths. The E( f, k s ) spectra fell along a ridge described by V = f/k s , where V is the mean velocity over depth, consistent with Taylor's hypothesis. New, consistent length scale measures are defined based on averaged wavelengths of the low-frequency E( f, k s ) and coherence spectra. Energetic ($50% of the total spectral energy), low-frequency (f < 0.05 Hz) streamwise motions were found. Mean length scales, L m , compared with the depth, h, are significantly larger than previously suggested for macroturbulence with L m /h $ 28-118. Although the energy appears as low-pass white noise, it is streamwise coherent along the length of the array. In fast flows with velocities > 1 m/s, L m were found to be significantly longer than their corresponding coherence lengths, suggesting that the turbulent structures evolve rapidly under these conditions. This is attributed to the stretching and concomitant deformation of preexisting macroturbulent motions by the ubiquitous bathymetry-induced spatial flow accelerations present in a natural gravel bed river.Citation: MacMahan, J., A. Reniers, W. Ashley, and E. Thornton (2012), Frequency-wavenumber velocity spectra, Taylor's hypothesis, and length scales in a natural gravel bed river, Water Resour. Res., 48, W09548,

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“…7-10). Measured velocities averaged for each of the four cross sections were obtained from discharge measurements during moderate to high streamflow using an acoustic Doppler current profiler to aid in estimating suspended-sediment transport (Fosness and Williams, 2009). Velocity measurements used in this analysis were made between December 2007 and August 2009 at the Kootenai River above Shorty Island (4845421162319, CS 143.585), Kootenai River below Fry Creek (12309490; CS 153.372), Kootenai River at Crossport (4842061161430; CS 156.829), and at Kootenai River below Moyie River (4842231161104; CS 159.783).…”

Section: Model Verificationmentioning

confidence: 99%

Updated one-dimensional hydraulic model of the Kootenai River, Idaho: A supplement to Scientific Investigations Report 2005-5110

Czuba¹,

Barton²

2011

Scientific Investigations Report

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Sediment Characteristics and Transport in the Kootenai River White Sturgeon Critical Habitat near Bonners Ferry, Idaho

Cited by 6 publications

References 8 publications

Fish Assemblage Structure and Habitat Associations in a Large Western River System

Fish Assemblage Structure and Habitat Associations in a Large Western River System

Frequency–wavenumber velocity spectra, Taylor's hypothesis, and length scales in a natural gravel bed river

Updated one-dimensional hydraulic model of the Kootenai River, Idaho: A supplement to Scientific Investigations Report 2005-5110

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