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Full-Text Articles in Engineering
Approaches For Studying Fish Production: Do River And Lake Researchers Have Different Perspectives?, Wayne A. Wurtsbaugh, Nicholas A. Heredia, Brian G. Laub, Christy S. Meredith, Harrison E. Mohn, Sarah E. Null, David A. Pluth, Brett B. Roper, W. Carl Saunders, David King Stevens, Richard H. Walker, Kit Wheeler
Approaches For Studying Fish Production: Do River And Lake Researchers Have Different Perspectives?, Wayne A. Wurtsbaugh, Nicholas A. Heredia, Brian G. Laub, Christy S. Meredith, Harrison E. Mohn, Sarah E. Null, David A. Pluth, Brett B. Roper, W. Carl Saunders, David King Stevens, Richard H. Walker, Kit Wheeler
Civil and Environmental Engineering Faculty Publications
Biased perspectives of fisheries researchers may hinder scientific progress and effective management if limiting factors controlling productivity go unrecognized. We investigated whether river and lake researchers used different approaches when studying salmonid production and whether any differences were ecologically supported. We assessed 564 peer-reviewed papers published between 1966 and 2012 that studied salmonid production or surrogate variables (e.g., abundance, growth, biomass, population) and classified them into five major predictor variable categories: physical habitat, fertility (i.e., nutrients, bottom-up), biotic, temperature, and pollution. The review demonstrated that river researchers primarily analyzed physical habitat (65% of studies) and lake researchers primarily analyzed fertility …
How To Utilize Relevance Vectors To Collect Required Data For Modeling Water Quality Constitu-Ents, And Fine Sediment In Natural Systems? Case Study: Mud Lake, Idaho, Hussein Aly Batt, David King Stevens
How To Utilize Relevance Vectors To Collect Required Data For Modeling Water Quality Constitu-Ents, And Fine Sediment In Natural Systems? Case Study: Mud Lake, Idaho, Hussein Aly Batt, David King Stevens
Civil and Environmental Engineering Faculty Publications
The development of monitoring programs for water quality and habitat assessment in surface waters is an ongoing challenge because of inherent difficulties in determining the effective spatial and temporal distribution of sites and trips. Recent advances in statistical learning theory, in which system characteristics are learned from data, point to the possibility of using the information content of data to shed light on monitoring results that provide sensitive and independent results. One of those techniques, multivariate relevance vector machines (MVRVM), creates as part of its algorithm subsets of a data set, called relevant vectors (RVs), that are most relevant for …
Arsenic(V) Reduction In Relation To Iron(Iii) Transformation And Molecular Analysis Of Arsenate Reductase (Arra) Gene Within Sediments Of A Northern Utah, Basin-Fill Aquifer, Babur S. Mirza, Subathra Muruganandam, Xianyu Meng, Darwin L. Sorensen, Ryan Dupont, Joan E. Mclean
Arsenic(V) Reduction In Relation To Iron(Iii) Transformation And Molecular Analysis Of Arsenate Reductase (Arra) Gene Within Sediments Of A Northern Utah, Basin-Fill Aquifer, Babur S. Mirza, Subathra Muruganandam, Xianyu Meng, Darwin L. Sorensen, Ryan Dupont, Joan E. Mclean
Civil and Environmental Engineering Faculty Publications
Basin-fill aquifers of the Southwestern United States are associated with elevated concentrations of arsenic (As) in groundwater. Many private domestic wells in the Cache Valley Basin, UT, have As concentrations in excess of the U.S. EPA drinking water limit. Thirteen sediment cores were collected from the center of the valley at the depth of the shallow groundwater and were sectioned into layers based on redoxmorphic features. Three of the layers, two from redox transition zones and one from a depletion zone, were used to establish microcosms. Microcosms were treated with groundwater (GW) or groundwater plus glucose (GW+G) to investigate the …
Response Of Free-Living Nitrogen-Fixing Microorganisms To Land Use Change In The Amazon Rainforest, Babur S. Mirza, C. Potisap, K. Nusslein, B. Bohannan, J. L.M. Rodrigues
Response Of Free-Living Nitrogen-Fixing Microorganisms To Land Use Change In The Amazon Rainforest, Babur S. Mirza, C. Potisap, K. Nusslein, B. Bohannan, J. L.M. Rodrigues
Civil and Environmental Engineering Faculty Publications
The Amazon rainforest, the largest equatorial forest in the world, is being cleared for pasture and agricultural use at alarming rates. Tropical deforestation is known to cause alterations in microbial communities at taxonomic and phylogenetic levels, but it is unclear whether microbial functional groups are altered. We asked whether free-living nitrogen-fixing microorganisms (diazotrophs) respond to deforestation in the Amazon rainforest, using analysis of the marker gene nifH. Clone libraries were generated from soil samples collected from a primary forest, a 5-year-old pasture originally converted from primary forest, and a secondary forest established after pasture abandonment. Although diazotroph richness did not …
The Impact Of Slit And Detention Dams On Debris Flow Control Using Gstars 3.0, Leila Hassan-Esfahani, Mohammad Ebrahim Banihabib
The Impact Of Slit And Detention Dams On Debris Flow Control Using Gstars 3.0, Leila Hassan-Esfahani, Mohammad Ebrahim Banihabib
Civil and Environmental Engineering Faculty Publications
Sedimentation, Modeling, GSTARS3.0, Debris flow, Slit dam, Detention dam