Open Access. Powered by Scholars. Published by Universities.®

Fresh Water Studies Commons

Open Access. Powered by Scholars. Published by Universities.®

1070 Full-Text Articles 1665 Authors 131959 Downloads 66 Institutions

All Articles in Fresh Water Studies

Faceted Search

1070 full-text articles. Page 3 of 21.

A Nonparametric Statistical Approach To Analyzing Eelgrass Density Data, Traci L. Sanderson, Michelle Spani, Andrew Rippington 2017 Golder Associates Inc.

A Nonparametric Statistical Approach To Analyzing Eelgrass Density Data, Traci L. Sanderson, Michelle Spani, Andrew Rippington

Salish Sea Ecosystem Conference

As part of continuing work in Port Gamble, WA a diver-based eelgrass survey was completed to support the application for a Hydraulic Project Approval (HPA), as required by the Washington State Department of Fish and Wildlife (WDFW) for in-water work. The survey was completed following interim guidelines established by WDFW in 2008, although to fit the guidelines to the specific project some methods were modified and approved by WDFW. Collecting statistically robust data proved to be difficult, as shoot density in the eelgrass bed was highly variable. In some areas the variance was so high that power calculations estimated the ...


A Framework To Assess Vulnerability Of Biological Components To Ship-Source Oil Spills In The Marine Environment, Kate Thornborough, Candice St. Germain, Lucie Hannah, Miriam O 2017 Institute of Ocean Sciences, Fisheries and Oceans Canada

A Framework To Assess Vulnerability Of Biological Components To Ship-Source Oil Spills In The Marine Environment, Kate Thornborough, Candice St. Germain, Lucie Hannah, Miriam O

Salish Sea Ecosystem Conference

A structured approach to identify biological components most affected by a ship-source oil spill has been developed utilising a suite of criteria to assess vulnerability. Our approach divides criteria into three categories: exposure, sensitivity, and recovery, each encompassing a number of criteria which are envisaged to be consistent and broad enough to be usable in any region in Canada. In support of this, we are working with biologists from other Canadian regions who are currently developing ship-source oil spill response plans (i.e. Pacific, Quebec & Maritimes) to test the usability of this approach in multiple marine environments. For the Pacific ...


Pacific Region Contaminants Atlas, Rob Knight, Chris Garrett, Peter Ross, Brad Mason 2017 Community Mapping Network

Pacific Region Contaminants Atlas, Rob Knight, Chris Garrett, Peter Ross, Brad Mason

Salish Sea Ecosystem Conference

The Pacific Region Contaminants Atlas (PRCA) is an online resource created to explore environmental contaminants topics in British Columbia, Canada. The industrialized and urbanized Georgia Basin, situated in the southwestern corner of British Columbia, is one of the key areas of concern and is the current focus of this Atlas.

Information sharing is crucial to effective decision-making by stakeholders. This web atlas provides access to scientific and technical information to support such decision-making and presents information on successes, future needs, and continuing concerns with respect to contaminants in the Georgia Basin.

In addition, the Atlas includes a Kids’ Page, an ...


Cross-Border Citizen Action: Protecting The Salish Sea From The Risks Of Fossil Fuel Transport, Alexandra L. Woodsworth 2017 Georgia Strait Alliance

Cross-Border Citizen Action: Protecting The Salish Sea From The Risks Of Fossil Fuel Transport, Alexandra L. Woodsworth

Salish Sea Ecosystem Conference

Currently, more than a dozen oil, coal and liquid natural gas projects are proposed on both sides of the border, threatening the health of the Salish Sea and its communities, as well as the global climate. Recent estimates suggest that if all the projects were to be approved, each year they would generate an extra 308 million tonnes of carbon dioxide emissions and an additional 1,200 ship journeys through the already-busy waters of the Salish Sea. Each fossil fuel project proposed in BC and Washington is currently being assessed in isolation from the others by the government agencies that ...


Volunteer-Assisted Monitoring Of A Significant Private Bulkhead Removal, Jeffrey Adams, Brenda Padgham, Jason Toft, Kyra O'Neil, Kate Litle 2017 Washington Sea Grant, University of Washington

Volunteer-Assisted Monitoring Of A Significant Private Bulkhead Removal, Jeffrey Adams, Brenda Padgham, Jason Toft, Kyra O'Neil, Kate Litle

Salish Sea Ecosystem Conference

Monitoring efforts to restore physical and biological functions along developed shorelines can take many forms and be influenced by monitoring goals, the scope and scale of the project, and available resources. The Powel project in Port Madison on Bainbridge Island, Washington, had regional significance because of its scale (removing 1544 lineal feet of armor), the diversity of types of armor and shoreline, and its private ownership, but it lacked the funding to support a broad, long-term monitoring program. Not willing to let the opportunity pass without some effort to gather as much appropriate information as possible about the impact and ...


Developing Locally-Driven (Shoreline) Monitoring Programs In The Salish Sea (And Beyond), David Sale 2017 ECO Resource Group, LLP

Developing Locally-Driven (Shoreline) Monitoring Programs In The Salish Sea (And Beyond), David Sale

Salish Sea Ecosystem Conference

During the development of the Bainbridge Island Shoreline Monitoring Program (SMP), a volunteer group of scientists and engineers (Bainbridge Island Environmental Technical Advisory (ETAC)), provided the City of Bainbridge Island (COBI) City Council and staff with advice and recommendations on relevant shoreline science and the SMP. One of the recommendations was for COBI to adopt and initiate a locally–driven and -managed monitoring program to address both the effectiveness of the SMP over time, and uncertainties in knowledge of specific Bainbridge Island shoreline drivers and processes. The program would be designed to integrate past and current studies by COBI and ...


Greening Real Estate Professionals: A Model For Landowner Engagement Through Effective Education For Brokers & Appraisers, Erica S. Guttman, Robert Simmons 2017 Washington State University

Greening Real Estate Professionals: A Model For Landowner Engagement Through Effective Education For Brokers & Appraisers, Erica S. Guttman, Robert Simmons

Salish Sea Ecosystem Conference

Real estate brokers, appraisers, and developers are an essential audience for bridging communication with new landowners throughout the Salish Sea watershed. The majority of these professionals share concerns about protecting water quality, ensuring the health of theSalishSeafor recreation and economic vitality, and preventing activities that lead to anthropogenic-caused landslides, flooding and other disasters.

Since 1998, WSU Extension has managed a real estate school focused on "green" topics to engage real estate professionals in these issues critical to their clients and our region's water resources. In recent years, our focus has centered on the topics of Green Stormwater Infrastructure and ...


Telling Stories: Designing Effective Data Visualization And Climate Change Communication Tools, Ilon E. Logan, Carol MacIlroy 2017 Environmental Science Associates

Telling Stories: Designing Effective Data Visualization And Climate Change Communication Tools, Ilon E. Logan, Carol Macilroy

Salish Sea Ecosystem Conference

As a scientific community, our understanding of the potential effects of a changing climate has increased dramatically over the past decade. We are integrating multiple models with increasing sophistication and projecting impacts at the local scale. But the results of our scientific data and analysis are only as good as their presentation to the public and other decision-makers. Telling the stories of our work using technology and thoughtful, accurate, and visually compelling graphics is paramount in today’s information-rich environment. MacIlroy Consulting, Inc. and Environmental Science Associates (ESA) collaborated to develop data visualization and communication tools for the Skagit Climate ...


Creating A Culture Of Shoreline Stewardship In Puget Sound, Erica Bates, Bob Simmons 2017 Washington State University

Creating A Culture Of Shoreline Stewardship In Puget Sound, Erica Bates, Bob Simmons

Salish Sea Ecosystem Conference

This poster will describe the results of the WSU Shore Stewards program over its 13 year history. The program recruits, educates, and engages shoreline property owners in home and landscape management activities that protect and improve shoreline functions and water quality. The program has regularly surveyed program participants to determine behavior changes as a result of the program, as well as undergone a comprehensive evaluation in 2014/2015, which will be highlighted in this poster. In 2015, WSU re-developed its peer reviewed program materials, which includes new website (shorestewards.wsu.edu), a revised “Guide for Shoreline Living,” and a DVD ...


A Long-Term Phytoplankton Monitoring Program For Central Puget Sound Using Particle Imaging, Gabriela Hannach, Lyndsey M. Swanson 2017 King County Environmental Lab

A Long-Term Phytoplankton Monitoring Program For Central Puget Sound Using Particle Imaging, Gabriela Hannach, Lyndsey M. Swanson

Salish Sea Ecosystem Conference

Puget Sound is a large and highly productive estuarine system that is vulnerable to climate change and anthropogenic impacts from a growing population. King County operates an exceptionally comprehensive, long-running monitoring program designed to assess water quality in the Puget Sound Central Basin. Data are collected year-round for a suite of physical, chemical, and biological parameters. Phyoplankton monitoring using traditional methods was added to the program in 2008 to address a significant biological data gap at the lower trophic level. Since acquisition of a FlowCAM particle imaging system in 2014 the program is generating a more extensive and robust dataset ...


Variable Marsh Resilience To Stress Offers Clues To Climate Change Adaptive Management, Roger Fuller 3337490, Katrina L. Poppe, John Rybczyk, Eric Grossman, Chad Stellern 2017 Western Washington University

Variable Marsh Resilience To Stress Offers Clues To Climate Change Adaptive Management, Roger Fuller 3337490, Katrina L. Poppe, John Rybczyk, Eric Grossman, Chad Stellern

Salish Sea Ecosystem Conference

In Puget Sound’s Stillaguamish estuary, tidal marshes exhibit evidence of multiple stressors that affect their vulnerability and provide insight into adaptive management opportunities to enhance their resilience. Despite high accretion rates, some marsh areas have receded by 10m/yr since 1964. Sources of stress include overgrazing by snow geese, high soil salinities, insect attacks, and changes in flow and inundation patterns. These interact with winter vegetation structure, sediment composition, and wave exposure to result in spatially variable marsh resilience. Some marshes are receding quickly, some slowly, and others are minimally affected. In the context of climate change, with potentially ...


Hyporheic Flow Possibilities Within Lamprey (Petromyzon Marinus) Redds On The Blackledge River In Marlborough Connecticut, Samuel Fixler 2017 Connecticut College

Hyporheic Flow Possibilities Within Lamprey (Petromyzon Marinus) Redds On The Blackledge River In Marlborough Connecticut, Samuel Fixler

Environmental Studies Honors Papers

The fluvial geomorphic process of hyporheic flow provides critical nutrients and dissolved oxygen to macroinvertebrates and eggs within riverbeds through hyporheic exchange. Hyporheic flow may operate at similar scales within sea lamprey (Petromyzon marinus) redds. Limited documentation exists on the hyporheic processes within lamprey redds. This study attempts to measure hyporheic flow using a saline injection syringe and salinity probe to record salinity-time curves. The method was applied to several redds on the Blackledge River, Marlborough, Connecticut. The second aspect of this study examined the hydraulic properties of lamprey redds within a controlled environment in a 0.5 m by ...


Juvenile River Herring In Freshwater Lakes: Sampling Approaches For Evaluating Growth And Survival, Matthew T. Devine 2017 University of Massachusetts - Amherst

Juvenile River Herring In Freshwater Lakes: Sampling Approaches For Evaluating Growth And Survival, Matthew T. Devine

Masters Theses

River herring, collectively alewives (Alosa pseudoharengus) and blueback herring (A. aestivalis), have experienced substantial population declines over the past five decades due in large part to overfishing, combined with other sources of mortality, and disrupted access to critical freshwater spawning habitats. Anadromous river herring populations are currently assessed by counting adults in rivers during upstream spawning migrations, but no field-based assessment methods exist for estimating juvenile densities in freshwater nursery habitats. Counts of 4-year-old migrating adults are variable and prevent understanding about how mortality acts on different life stages prior to returning to spawn (e.g., juveniles and immature adults ...


Developing A Hydrological Monitoring Program For Ponds In Wapusk National Park, Manitoba, Using Water Isotope Tracers, Stephanie Roy 2017 Wilfrid Laurier University

Developing A Hydrological Monitoring Program For Ponds In Wapusk National Park, Manitoba, Using Water Isotope Tracers, Stephanie Roy

Theses and Dissertations (Comprehensive)

Northern lake-rich landscapes are vulnerable to increases in surface air temperatures and are changing in dynamic ways. Current meteorological records indicate that some of the greatest warming in the past century has occurred in the Hudson Bay Lowlands (HBL). As the HBL is an extensive wetland consisting of hundreds of thousands of shallow lakes and ponds, it is difficult to anticipate the long-term implications that climate change will have on pond water balance. To develop and implement long-term monitoring of hydrological conditions, sampling of pond water isotope composition has occurred during the past six years in Wapusk National Park (WNP ...


Malta : Natural Freshwater Resources, Lisamarie Pereira 2017 Augustana College, Rock Island Illinois

Malta : Natural Freshwater Resources, Lisamarie Pereira

Global Public Health

The aim of this paper is to discuss Malta’s struggle with limited natural freshwater resources. Malta currently uses aquifers to obtain natural freshwater. For over a decade, aquifers have been under pressure from over-abstraction. Due to this issue, Malta has not been able to obtain enough natural freshwater for agriculture and basic living. The biggest risk due to over-abstraction is retrieving a smaller volume of freshwater. In Malta’s attempted interventions, the biggest issue is the Maltese government’s misconceptions. The Maltese government believes the country has unlimited natural freshwater resources. Due to this misconception, nothing is being done ...


Utilizing Remote And Numerical Methods To Provide Constraints For The Seasonal Development And Topographic Profiles Of Rock Glaciers, Brett Oliver 2017 University of Colorado, Boulder

Utilizing Remote And Numerical Methods To Provide Constraints For The Seasonal Development And Topographic Profiles Of Rock Glaciers, Brett Oliver

Undergraduate Honors Theses

Rock glaciers represent the dynamic interaction between rock and ice in many alpine settings that lie below the Equilibrium Line Altitude (ELA). These periglacial systems are formed by avalanched snow and debris from an overlying headwall, and are adorned with distinct topographic lobes collectively known as rumples. The central rock glacier of Mount Sopris presents a clear expression of rumples, where the structures are well-defined throughout the 1.8 km long glacier. In addition to clearly-expressed rumples, the accumulation area is constrained to a narrow bowl at the base of the headwall that is easy to identify. To inform our ...


How Are Coastal Benthos Fed?, James Waples, Harvey A. Bootsma, J. Val Klump 2017 University of Wisconsin - Milwaukee

How Are Coastal Benthos Fed?, James Waples, Harvey A. Bootsma, J. Val Klump

Freshwater Faculty Articles

Water movement can influence the distribution of benthos, in part, by increasing food delivery; however, the impact of advective transport and turbulent diffusion on organic matter flux to nearshore benthic communities is not well quantified. In this study, we measured the vertical particulate organic carbon (POC) and particulate phosphorus (PP) flux in nearshore Lake Michigan using two naturally occurring daughter/parent radionuclide pairs (234Th/238U and 90Y/90Sr) and compared these fluxes to coincident benthic chamber estimates of respiration and total phosphorus efflux by quagga mussels on the lakebed. We found that advective onshore transport and ...


Spatiotemporal Distribution Of Eutrophication In Lake Tai As Affected By Wind, Wenhui Zhang, Qiujin Xu, Xixi Wang, Xiaozhen Hu, Cheng Wang, Yan Pang, Yanbin Hu, Yang Zhao, Xiao Zhao 2017 Old Dominion University

Spatiotemporal Distribution Of Eutrophication In Lake Tai As Affected By Wind, Wenhui Zhang, Qiujin Xu, Xixi Wang, Xiaozhen Hu, Cheng Wang, Yan Pang, Yanbin Hu, Yang Zhao, Xiao Zhao

Civil & Environmental Engineering Faculty Publications

One common hypothesis is that wind can affect concentrations of nutrients (i.e., nitrogen and phosphorus) and chlorophyll-a (Chl-a) in shallow lakes. However, the tests of this hypothesis have yet to be conclusive in existing literature. The objective of this study was to use long-term data to examine how wind direction and wind speed affect the spatiotemporal variations of total nitrogen (TN), total phosphorus (TP) and Chl-a in Lake Tai, a typical shallow lake located in east China. The results indicated that the concentrations of nutrients and Chl-a tended to decrease from the northwest to the southeast of Lake Tai ...


Water–Soil–Vegetation Dynamic Interactions In Changing Climate, Xixi Wang, Xuefeng Chu, Tingxi Liu, Xiangju Cheng, Rich Whittecar 2017 Old Dominion University

Water–Soil–Vegetation Dynamic Interactions In Changing Climate, Xixi Wang, Xuefeng Chu, Tingxi Liu, Xiangju Cheng, Rich Whittecar

Civil & Environmental Engineering Faculty Publications

Previous studies of land degradation, topsoil erosion, and hydrologic alteration typically focus on these subjects individually, missing important interrelationships among these important aspects of the Earth's system. However, an understanding of water–soil–vegetation dynamic interactions is needed to develop practical and effective solutions to sustain the globe's eco-environment and grassland agriculture, which depends on grasses, legumes, and other fodder or soil-building crops. This special issue is intended to be a platform for a discussion of the relevant scientific findings based on experimental and/or modeling studies. Its 12 peer-reviewed articles present data, novel analysis/modeling approaches, and ...


Resistivity, Magnetic Susceptibility And Sediment Characterization Of The York River Estuary In Support Of The Empirical Investigation Of The Factors Influencing Marine Applications Of Emi (Year 2 Of Serdp Project Mr-2409) Final Report., Grace M. Massey, Carl T. Friedrichs 2017 Virginia Institute of Marine Science

Resistivity, Magnetic Susceptibility And Sediment Characterization Of The York River Estuary In Support Of The Empirical Investigation Of The Factors Influencing Marine Applications Of Emi (Year 2 Of Serdp Project Mr-2409) Final Report., Grace M. Massey, Carl T. Friedrichs

Reports

Vessel and personnel support was provided for a series of cruises to three salinity regimes along the York River. Data and samples from a standard suite of hydrographic and sedimentological measurements, as well as electrical resistivity and magnetic susceptibility, were collected and analyzed for each location. These cruises provided opportunities to obtain information that is being used to quantify the unique marine contributions to the early time TEM noise, including conductivity variations in the water and variability in bottom sediment properties in real marine environments, for use in the parallel modeling and electromagnetic-induction sensor work ongoing in the same project ...


Digital Commons powered by bepress