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Executive Summary : A River Continuum Analysis Of An Anthropenically-Impacted System : The Little Bear River, Utah, Nick Heredia
Executive Summary : A River Continuum Analysis Of An Anthropenically-Impacted System : The Little Bear River, Utah, Nick Heredia
Natural Resources and Environmental Issues
In September 2012 the Aquatic Ecology Practicum class from Utah State University studied the 51km river continuum of the Little Bear River located in northern Utah (Figure 1). The relatively pristine headwaters of the river begin in the Wasatch Mountain Range at an altitude of 1800 m. The river flows northward into Cache Valley where it terminates in Cutler Reservoir (1345 m elevation). Agricultural development and urbanization have modified the natural terrain and chemical characteristics of the river, and Hyrum Reservoir, located midway along the gradient causes a discontinuity in river processes. The results from analyses of stream condition indicators …
A Profile Of The Physical Attributes Of The Little Bear River In The Context Of The Serial Discontinuity Concept, Marc Weston
A Profile Of The Physical Attributes Of The Little Bear River In The Context Of The Serial Discontinuity Concept, Marc Weston
Natural Resources and Environmental Issues
To study the Little Bear River’s physical characteristics in the context of the serial discontinuity concept, sites were sampled along a continuum from the headwaters to 51 km downstream, near where the Little Bear River flows into Cutler Reservoir. Samples were collected in September 2012 at base flow. To estimate sediment sizes along the transect pebble counts were conducted at six sites and where possible pebble counts were done in both pools and riffles. Sediment sizes showed a decrease in median size (D50 ) of 45 mm at the upper station to the lower station where the substrate was a …
Anthropogenic Impacts On The Longitudinal Gradient Of Nutrients In The Little Bear River, Jason Fuller
Anthropogenic Impacts On The Longitudinal Gradient Of Nutrients In The Little Bear River, Jason Fuller
Natural Resources and Environmental Issues
I measured the anthropogenic impacts from land use on nutrient concentrations along the Little Bear River in Cache Valley, Utah. Water samples from twelve stations along the Little Bear River were collected and analyzed using an auto analyzer in order to determine conductivity and concentrations of total nitrogen, total phosphorus, soluble reactive phosphorus (SRP), ammonia (NH3), and nitrate (NO3-). Samples were collected at stations thought to reveal anthropogenically influenced nutrient loading. Some of the anthropogenic land usages that potentially impact the nutrient concentrations include agricultural land use, urban land use, Hyrum Reservoir, the Trout of Paradise fishing reserve located near …
Temperature And Discharge On A Highly Altered Stream In Utah's Cache Valley, Andy Pappas
Temperature And Discharge On A Highly Altered Stream In Utah's Cache Valley, Andy Pappas
Natural Resources and Environmental Issues
To study the River Continuum Concept (RCC) and the Serial Discontinuity Hypothesis (SDH), I looked at temperature and discharge changes along 52 km of the Little Bear River in Cache Valley, Utah. The Little Bear River is a fourth order stream with one major reservoir, a number of irrigation diversions, and one major tributary, the East Fork of the Little Bear River. Discharge data was collected at six sites on 29 September 2012 and temperature data was collected hourly at eleven sites from 1 October to 20 October 2012. Discharge and temperature both increased as elevation declined to Hyrum Reservoir. …
Benthic Invertebrate Composition Along The Little Bear River Continuum, Jared Baker, Chance Broderius, Katie Fisher, Jason Fuller, George A. Papas, Christian Smith, Marc Weston
Benthic Invertebrate Composition Along The Little Bear River Continuum, Jared Baker, Chance Broderius, Katie Fisher, Jason Fuller, George A. Papas, Christian Smith, Marc Weston
Natural Resources and Environmental Issues
Benthic invertebrates were sampled at four stations along the Little Bear River continuum: Station 2 in the mountainous headwaters, at Station 4 in the transition area to the lowland valley, at Station 7 below Hyrum Reservoir, and at Station 11 in the low-gradient agricultural area near where the river flows into Cutler Reservoir wetland. At each station samples were collected with sweep nets in each of the habitats, with an effort made to sample each type of habitat in proportion to its abundance. Ethanol-preserved samples were counted utilizing 30X compound microscopes, with 2 or more students providing counts and taxa …
A Fisheries Investigation Of The Previously Un-Surveyed Little Bear River, Christian Smith
A Fisheries Investigation Of The Previously Un-Surveyed Little Bear River, Christian Smith
Natural Resources and Environmental Issues
To evaluate the effects of human impacts on the composition and abundances of fishes on the Little Bear River, the 2012 Aquatic Ecology Practicum class conducted backpack electrofishing surveys in four sites of the river on 29 September and 4 October 2012. At these sites, species composition, biomass, and abundances were documented utilizing 2-pass electrofishing. In total, ten species were captured, with native species being represented by Bonneville cutthroat trout (Oncoryhnchus clarki Utah) and mottled sculpin (Cottus bairdii). Mottled sculpin comprised the majority of native fish captured (n= 241), while brown trout accounted for the majority of nonnatives …
Algal Nutrient Limitation Throughout The Little Bear River Watershed, Jared Baker
Algal Nutrient Limitation Throughout The Little Bear River Watershed, Jared Baker
Natural Resources and Environmental Issues
The objective of this study was to use a 5 day bioassay experiment to assess whether nitrogen or phosphorus limited the growth of algae in the Little Bear River watershed. Four sites were sampled along the river in September 2012. The locations of the sites were south of Avon (Station 2), near Paradise, UT (Station 6), downstream of Hyrum Reservoir (Station 7), and downstream of the Waste Water Treatment Facility in Wellsville (Station 10). Chlorophyll a analysis was conducted prior to, after 2.5 days, and at the conclusion of the 5 days. Varying combinations of nitrogen and phosphorus were added …
Periphyton And Phytoplankton Chlorophyll A Levels In The Little Bear River And Hyrum Reservoir, Utah, Katie Fisher
Periphyton And Phytoplankton Chlorophyll A Levels In The Little Bear River And Hyrum Reservoir, Utah, Katie Fisher
Natural Resources and Environmental Issues
This study was conducted to assess the applicability of the River Continuum and Serial Discontinuity Concepts to the Little Bear River, using chlorophyll a values along the gradient of the river and within Hyrum Reservoir. Periphyton was analyzed from seven sites and phytoplankton from nine sites (including Hyrum Reservoir) in September 2012. The lower parts of the Little Bear River is heavily influenced by agricultural and anthropogenic sources of nutrients and other pollution, creating poor water quality in its lower reaches. Periphyton levels in the river increased along the gradient, peaking just below Hyrum reservoir, and then decreased with distance …
Anthropogenically Altered Land And Its Effect On Δ15n Values In Periphyton On A Fourth Order Stream In Utah’S Cache Valley, Chance Broderius
Anthropogenically Altered Land And Its Effect On Δ15n Values In Periphyton On A Fourth Order Stream In Utah’S Cache Valley, Chance Broderius
Natural Resources and Environmental Issues
The Little Bear River is a tributary to the Bear River that drains the south end of the Cache Valley in Northern Utah. The upper elevations are more pristine and are made up of mostly forested mountainous terrain with some grazing activity. The lower elevations are comprised of low gradient agricultural and urban parcels. Anthropogenically influenced landscapes can result in higher nitrogen inputs to streams, and these increases are often marked by an increase in the heavy-nitrogen isotope, δ15N. This study looked at the concentration of δ15N in periphyton on the river bed. These concentrations were then compared to anthropogenic …
A River Continuum Analysis Of An Anthropogenically-Impacted System: The Little Bear River, Utah, Wayne A. Wurtsbaugh, Nick Heredia, Patsy Palacios, Jared Baker, Chance Broderius, Katie Fisher, Jason Fuller, G. Andrew Pappas, Christian Smith, Marc Weston
A River Continuum Analysis Of An Anthropogenically-Impacted System: The Little Bear River, Utah, Wayne A. Wurtsbaugh, Nick Heredia, Patsy Palacios, Jared Baker, Chance Broderius, Katie Fisher, Jason Fuller, G. Andrew Pappas, Christian Smith, Marc Weston
Natural Resources and Environmental Issues
In September 2012 the Aquatic Ecology Practicum class from Utah State University studied the 51km river continuum of the Little Bear River located in northern Utah (Figure 1). The relatively pristine headwaters of the river begin in the Wasatch Mountain Range at an altitude of 1800 m. The river flows northward into Cache Valley where it terminates in Cutler Reservoir (1345 m elevation). Agricultural development and urbanization have modified the natural terrain and chemical characteristics of the river, and Hyrum Reservoir, located midway along the gradient causes a discontinuity in river processes. The results from analyses of stream condition indicators …