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6411 full-text articles. Page 1 of 143.

Upstream, Midstream, And Downstream: Dispute System Design For Sustainable Groundwater Management, Janet Martinez, Esther Conrad, Tara Moran 2018 University of St. Thomas, Minnesota

Upstream, Midstream, And Downstream: Dispute System Design For Sustainable Groundwater Management, Janet Martinez, Esther Conrad, Tara Moran

University of St. Thomas Law Journal

No abstract provided.


Variation In Angler Distribution And Catch Rates Of Stocked Rainbow Trout In A Small Reservoir, Brian S. Harmon, Dustin R. Martin, Christopher J . Chizinski, K. L. Pope 2018 University of Nebraska-Lincoln

Variation In Angler Distribution And Catch Rates Of Stocked Rainbow Trout In A Small Reservoir, Brian S. Harmon, Dustin R. Martin, Christopher J . Chizinski, K. L. Pope

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers to fish near the stocking location and disperse with time, however distance between angler parties and stocking was highly variable at any given time. Spatially explicit differences in catch rates can affect fishing quality. Further research could investigate the variation between angler distribution and fish distribution within a waterbody.


Characterization Of Microplastics Using Fourier Transform Infrared Spectroscopy (Ftir), Erin Ashline 2018 SUNY Plattsburgh

Characterization Of Microplastics Using Fourier Transform Infrared Spectroscopy (Ftir), Erin Ashline

Center for Earth and Environmental Science Student Posters

Fourier transform infrared (FT-IR) is a spectroscopy technique widely used to analyze polymer profiles of particulate at a chemical level. The goal of this study was to assess the polymer composition of microplastics ingested by aquatic organisms from Lake Champlain. Preliminary results suggest fibers are the most prominent particle type in organisms (N = 482). Among these fibers, the most common plastic polymer was polyester [PET] (14.5%), followed by cellulose [20u ave particle size] (11.1%), alpha-cellulose [99.5% pure] (11.0%), and rayon (8.5%). Fragments were the second most prominent particle type (N = 168) and were commonly polyester ...


Microplastic Pollution: A Survey Of Wastewater Effluent In The Lake Champlain Basin, Melissa Moriarty, Erin Lee, Sadie Brown, Brandon Buksa, Thomas Niekrewicz, Jason Barnes, Elizabeth Chaskey 2018 SUNY Plattsburgh

Microplastic Pollution: A Survey Of Wastewater Effluent In The Lake Champlain Basin, Melissa Moriarty, Erin Lee, Sadie Brown, Brandon Buksa, Thomas Niekrewicz, Jason Barnes, Elizabeth Chaskey

Center for Earth and Environmental Science Student Posters

Microplastic is defined as particulatefragments, fibers, films, foams, pellets, and beads. Microplastic pollution was first documented in the 1970s and interest has grown from initial characterization, to effects within marine and freshwater food chains, ultimately impacting human health. Due to their small size, porosity, and density variation, microplastics often escape wastewater treatment processing (WWTP). Commencing in 2015, we surveyed WWTP post-treatment effluent (N = 59) from the city of Plattsburgh, NY and beginning in fall 2016 from St Albans, VT (N = 29), Ticonderoga, NY (N = 23), and Burlington, VT (N = 9). Effluent samples were collected and digested using wet peroxide oxidation ...


Microplastic Biomagnification In Invertebrates, Fish, And Cormorants In Lake Champlain, James Stewart, Joshua Walrath, Alex Putnam, Chad Hammer, Hope VanBrocklin, Brandon Buksa, Alexis Clune 2018 SUNY Plattsburgh

Microplastic Biomagnification In Invertebrates, Fish, And Cormorants In Lake Champlain, James Stewart, Joshua Walrath, Alex Putnam, Chad Hammer, Hope Vanbrocklin, Brandon Buksa, Alexis Clune

Center for Earth and Environmental Science Student Posters

The goal of this research was to determine whether microplastics (MP) are uptaken by invertebrates, fish, andPhalacrocorax auritus (double-crested cormorants) resident to Lake Champlain. We did so by quantifying and characterizing (e.g., fragment, fiber, film, foam, pellet) plastic particulate.Wet peroxide oxidation digests were performed on digestive tracts of 506 lake organisms, specifically invertebrates (n = 301), 15 species of fish (n = 190), andPhalacrocorax auritus (double-crested cormorants) (n = 15). Our research indicated that fibers were the were the most common (80.1%) type of particulate found in all organisms, followed by fragments (9.64%), films (6.36%), foam ...


Watershed Management Tools: Hazardous Site Case History, Reference Stream Analysis, And Gis Analysis Of Fire Risk, Patrick Doyle 2018 University of Montana

Watershed Management Tools: Hazardous Site Case History, Reference Stream Analysis, And Gis Analysis Of Fire Risk, Patrick Doyle

Graduate Student Portfolios

My portfolio explores some tools that are used to protect or assess watershed health and the experiences and lessons I learned during my time in the Environmental Studies program. The first piece in my portfolio is a case study that looks at the history of pollution ad cleanup of the kraft pulp mill along the Clark Fork River. In my study, I look closely at the EPA’s investigation of the site and the community’s reaction to the findings. In my second piece, I describe my field and lab experience working for the Montana Department of Environmental Quality. During ...


Population Characteristics Of Shovelnose Sturgeon During Low- And High-Water Conditions In The Lower Platte River, Nebraska, Jeremy J. Hammen, Martin J. Hamel, Matthew L. Rugg, Edward J. Peters, Mark A. Pegg 2018 U.S. Fish and Wildlife Service, Columbia, MO

Population Characteristics Of Shovelnose Sturgeon During Low- And High-Water Conditions In The Lower Platte River, Nebraska, Jeremy J. Hammen, Martin J. Hamel, Matthew L. Rugg, Edward J. Peters, Mark A. Pegg

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Cycles of low- and high-water periods (i.e., years) in river systems are natural occurrences, but understanding how cyclical climatological patterns affect fishes, especially long-lived species, is unclear. We assessed Shovelnose Sturgeon population dynamics between a period of low- (2001-2004) and high- (2009-2012) water years in the lower Platte River, Nebraska. Low-flow periods in the lower Platte River can cause disconnection(s) between upstream and downstream reaches resulting in isolated pools and elevated water temperatures leading to stressful situations for aquatic life and possible mortality. Our data show no measurable differences between key population indices between flow condition periods which ...


Electrical Stimulation For Enhanced Denitrification In Woodchip Bioreactors: Opportunities And Challenges, J. Y. Law, Michelle L. Soupir, D. Raj Raman, T. B. Moorman, Say K. Ong 2018 Iowa State University

Electrical Stimulation For Enhanced Denitrification In Woodchip Bioreactors: Opportunities And Challenges, J. Y. Law, Michelle L. Soupir, D. Raj Raman, T. B. Moorman, Say K. Ong

Agricultural and Biosystems Engineering Publications

Woodchip bioreactors are being implemented for the removal of nitrates in groundwater and tile water drainage. However, low nitrate removals in denitrifying woodchip bioreactors have been observed for short hydraulic retention time (HRT) and low water temperature (°C). One potential approach to improve woodchip bioreactor performance is to provide an alternative and readily available electron source to the denitrifying microorganisms through electrical stimulation. Previous work has demonstrated the capability of bio-electrochemical reactors (BER) to remove a variety of water contaminants, including nitrate, in the presence of a soluble carbon source. The objective of this study was to evaluate the denitrification ...


Resilience Concepts In Psychiatry Demonstrated With Bipolar Disorder, David G. Angeler, Craig R. Allen, Maj-Liz Persson 2018 Swedish University of Agricultural Sciences

Resilience Concepts In Psychiatry Demonstrated With Bipolar Disorder, David G. Angeler, Craig R. Allen, Maj-Liz Persson

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Background: The term resilience describes stress–response patterns of subjects across scientific disciplines. In ecology, advances have been made to clearly distinguish resilience definitions based on underlying mechanistic assumptions. Engineering resilience (rebound) is used for describing the ability of subjects to recover from adverse conditions (disturbances), and is the rate of recovery. In contrast, the ecological resilience definition considers a systemic change: when complex systems (including humans) respond to disturbances by reorganizing into a new regime (stable state) where structural and functional aspects have fundamentally changed relative to the prior regime. In this context, resilience is an emergent property of ...


The Application And Usefulness Of Economic Analyses For Water Quality Management In Coastal Areas, Sheri L. Jewhurst, Kate K. Mulvaney, Marisa J. Mazzotta 2017 US Environmental Protection Agency

The Application And Usefulness Of Economic Analyses For Water Quality Management In Coastal Areas, Sheri L. Jewhurst, Kate K. Mulvaney, Marisa J. Mazzotta

Journal of Ocean and Coastal Economics

Economic studies are increasingly sought as tools to contribute to water quality management in estuaries and coastal communities, yet little is known about how the results from existing studies have been received and utilized by the organizations who solicited them. We interviewed managers from eight organizations who solicited economic studies over the past 15 years to understand how useful the studies were to their organizations and what economic research would be most helpful for their management needs. In terms of utility for coastal managers, there are a number of limitations in the studies. These include lack of site-specific data, the ...


Translating Statistical Species-Habitat Models To Interactive Decision Support Tools, Lyndsie S. Wszola, Victoria L. Simonsen, Erica F. Stuber, Caitlyn R. Gillespie, Lindsey N. Messinger, Karie L. Decker, Jeffrey J. Lusk, Christopher F. Jorgensen, Andrew A. Bishop, Joseph J. Fontaine 2017 University of Nebraska - Lincoln

Translating Statistical Species-Habitat Models To Interactive Decision Support Tools, Lyndsie S. Wszola, Victoria L. Simonsen, Erica F. Stuber, Caitlyn R. Gillespie, Lindsey N. Messinger, Karie L. Decker, Jeffrey J. Lusk, Christopher F. Jorgensen, Andrew A. Bishop, Joseph J. Fontaine

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Understanding species-habitat relationships is vital to successful conservation, but the tools used to communicate species-habitat relationships are often poorly suited to the information needs of conservation practitioners. Here we present a novel method for translating a statistical species-habitat model, a regression analysis relating ring-necked pheasant abundance to landcover, into an interactive online tool. The Pheasant Habitat Simulator combines the analytical power of the R programming environment with the user-friendly Shiny web interface to create an online platform in which wildlife professionals can explore the effects of variation in local landcover on relative pheasant habitat suitability within spatial scales relevant to ...


Biodiversity Of Larval And Adult Dragonflies And Damselflies (Odonata) Of Interdunal Wetlands At Saugatuck Harbor Natural Area, Devon Volz 2017 Western Michigan University

Biodiversity Of Larval And Adult Dragonflies And Damselflies (Odonata) Of Interdunal Wetlands At Saugatuck Harbor Natural Area, Devon Volz

Honors Theses

The effects of climate change on insects in the United States have yet to be fully understood. Research on the insect populations of Lake Michigan’s interdunal wetlands has been particularly limited. As these vibrant habitats are already at risk of destruction due to increased development, it is vital to have a working knowledge of the species that are living in the habitat. However, to date, there have been no studies on assemblages of interdunal wetlands in Michigan. Examining community compositions is critical to understanding the ecological problems that could occur in the future. This study is the first to ...


Factors Affecting Clean And Safe Water Availability In Butansi And Namasagali Sub-Counties Of Uganda, Sydney Beaurivage 2017 Iowa State University

Factors Affecting Clean And Safe Water Availability In Butansi And Namasagali Sub-Counties Of Uganda, Sydney Beaurivage

Honors Projects and Posters

Boreholes are the only source of water for many residents of the Kamuli district of Uganda. They are the safest form of water for almost all residents of Kamuli. Iowa State University – Uganda Program (ISU-UP), a local non-profit has installed 18 boreholes in different communities in the Kamuli district. While boreholes are critical for life, information about their success is required for appropriate monitoring and evaluation. The objective of this research was to survey community members to better understand the number of residents using the boreholes as their primary water source, their uses of the boreholes and what prevents them ...


Improving The Accuracy Of Cosmic-Ray Neutron Probe Estimate Of Soil Water Content Using Multiple Detectors And Remote Sensing Estimates Of Vegetation, Xiaochen Dong 2017 University of Nebraska - Lincoln

Improving The Accuracy Of Cosmic-Ray Neutron Probe Estimate Of Soil Water Content Using Multiple Detectors And Remote Sensing Estimates Of Vegetation, Xiaochen Dong

Dissertations & Theses in Natural Resources

The recently developed Cosmic-ray Neutron Probe (CRNP) for estimating soil water content (SWC) fills a critical measurement gap between point scale methods and large scale measurements collected from remote sensing. CRNP works by measuring the change in low-energy neutron intensity over time. However, the accuracy of CRNP to measure SWC is well known to be affected by other hydrogen sources (e.g. soil organic content, atmospheric water vapor, vegetation and surface water). This study focuses on the influence of rapidly growing vegetation in agricultural fields on the accuracy of the CRNP method. Here we use data from three long-term CRNP ...


Using Film To Inspire Advocacy: An Interview With Shalini Kantayya, Mahvish Ilyas, Siga Wu, Dechan Dalrymple 2017 University of Pennsylvania

Using Film To Inspire Advocacy: An Interview With Shalini Kantayya, Mahvish Ilyas, Siga Wu, Dechan Dalrymple

wH2O: The Journal of Gender and Water

No abstract provided.


Art Reinvented: Connecting Back To Mother Nature, Dechan Dalrymple 2017 University of Pennsylvania

Art Reinvented: Connecting Back To Mother Nature, Dechan Dalrymple

wH2O: The Journal of Gender and Water

No abstract provided.


Notes From The Field: An Assessment Of Wash Programs In West Bengal, India, Mark Lotto 2017 University of Pennsylvania

Notes From The Field: An Assessment Of Wash Programs In West Bengal, India, Mark Lotto

wH2O: The Journal of Gender and Water

No abstract provided.


Caloric Expenditure As An Indicator Of Access To Water, Jeff La Frenierre 2017 Gustavus Adolphus College

Caloric Expenditure As An Indicator Of Access To Water, Jeff La Frenierre

wH2O: The Journal of Gender and Water

Building upon the stated success of the Millennium Development Goal to "halve, by 2015, the proportion of the population without sustainable access to safe drinking water", Goal 6.1 of the Sustainable Development Goals (SD Gs) aims to "by 2030, achieve universal and equitable access to safe and affordable drinking water for all." However, 'access' as currently defined allows for a water source to be outside of the home, by tradition as much as 1 kilometer away. As a result, as many as 2.3 billion people live in households considered to have achieved 'access' but who remain reliant on ...


Empowering Women In The Wash Sector: A Woman's Burden, Yari Greeney, Becky Chanis, Gemma Bulos, Rachel Cardone 2017 University of Pennsylvania

Empowering Women In The Wash Sector: A Woman's Burden, Yari Greeney, Becky Chanis, Gemma Bulos, Rachel Cardone

wH2O: The Journal of Gender and Water

No abstract provided.


Arsenic Poisoning In Rural Bangladesh-An Intersectional Analysis Of Impact In Women, Louise Andersson, Dr. Martina Angela Caretta 2017 Stockholm University

Arsenic Poisoning In Rural Bangladesh-An Intersectional Analysis Of Impact In Women, Louise Andersson, Dr. Martina Angela Caretta

wH2O: The Journal of Gender and Water

Based on a qualitative case study in six arsenic acute villages in southwest Bangladesh, this paper presents the intersectional impact of the arsenic poisoning crisis in rural Bangladesh. Findings indicate that the arsenic poisoning crisis is aggravating existing gender inequalities as well as gender roles and responsibilities. The gender inequalities related to arsenicosis are manifested in the access to health care and in the degree of social stigma: women are the biggest victims, unmarried women in particular. The study shows that multiple axis of oppression as class, disability and age are crucial in determining the magnitude of the arsenic poisoning ...


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