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Articles 61 - 90 of 143

Full-Text Articles in Fresh Water Studies

Minimum Riparian Buffer Width For Maintaining Water Quality And Habitat Along Stevens Creek, Sammi Bray Apr 2010

Minimum Riparian Buffer Width For Maintaining Water Quality And Habitat Along Stevens Creek, Sammi Bray

Department of Environmental Studies: Undergraduate Student Theses

ABSTRACT Riparian buffer zones are important sites of biodiversity, sediment trapping, pollutant removal, and hydrologic regulation that have significant implications for both people and wildlife. Urbanization’s influence on and need for adequate water quality increases the need for careful planning in regards to riparian areas. Wildlife are key components in the ecosystem functions of riparian zones and require consideration in peri-urban planning as well. This study reviews relevant literature to determine the recommended minimum riparian buffer width for maintaining water quality and habitat along Stevens Creek in Lincoln, Nebraska. Only sources that listed a specific purpose related to water quality …


Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending March 30, 2010, Margaret N. Rees Mar 2010

Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending March 30, 2010, Margaret N. Rees

Limnological Studies

Project 1

• Technical assistance with the implementation of the Interagency Monitoring Action Plan (I-MAP) for Quagga Mussels is ongoing. Three sampling events took place this quarter and analysis of all samples (fall 2009 – spring 2010) is underway.

• Two graduate students are undergoing necessary training for the two small-scale research projects funded by this task agreement. Sampling is anticipated to begin in June 2010.

• The quarterly Interagency Quagga Mussel Meeting was held in March 2010.

Project 2

• Protocols relevant to the Long-term Limnological Aquatic Resource Monitoring and Research Plan (Plan) for Lakes Mead and Mohave have …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Executive Summary And Concise Statement Of Accomplishments, Limnological Assistance For Lake Mead National Recreation Area Mar 2010

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Executive Summary And Concise Statement Of Accomplishments, Limnological Assistance For Lake Mead National Recreation Area

Limnological Studies

Limnological Assistance for the Lake Mead National Recreation Area in Meeting the Challenge of the Water 2025 Initiative was a Southern Nevada Public Land Management Act (SNPLMA)-funded project. It was implemented by the University of Nevada, Las Vegas (UNLV) Public Lands Institute (PLI) cooperatively with the UNLV Department of Environmental and Occupational Health and the UNLV Harry Reid Center for Environmental Studies on behalf of and in cooperation with the National Park Service, Lake Mead National Recreation Area (Lake Mead NRA).


Research Poster: Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Amanda Wagner, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Brian M. Bird Feb 2010

Research Poster: Water Source Partitioning For Shrubland Transpiration Using Innovative Field Methods, Amanda Wagner, Dale A. Devitt, Michael Young, Matthew S. Lachniet, Jeremy Koonce, Brian M. Bird

2010 Annual Nevada NSF EPSCoR Climate Change Conference

Research poster


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2009, Margaret N. Rees Sep 2009

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2009, Margaret N. Rees

Limnological Studies

Project 1: Two advisory team meetings were attended this year; technical input was provided as appropriate; and summaries were prepared and delivered to Kent Turner. The SCOP Selenium Management Plan has been reviewed with two reports provided.

Project 2: Whitepapers on the carp die-off due to Koi Herpes Virus (KHV) and on lead-base paint use on launch ramps were finalized and delivered to Mr. Turner.

Project 3: The Interagency Monitoring Action Plan (I-MAP) for Quagga Mussels has been approved for implementation.

Project 5: Seven articles based on presentations at the Lake Mead Science Symposium have been approved by the technical …


Interagency Management Action Plan (I-Map) For Quagga Mussels, David Wong, Shawn Gerstenberger Aug 2009

Interagency Management Action Plan (I-Map) For Quagga Mussels, David Wong, Shawn Gerstenberger

Public Lands Institute Publications

Following the discovery of quagga mussels in Lake Mead, a variety of agencies, including National Park Service (NPS) Lake Mead National Recreational Area (LMNRA), Bureau of Reclamation (USBR), Southern Nevada Water Authority (SNWA), Nevada Department of Wildlife (NDOW), U.S. Fish and Wildlife (USFWS), Clean Water Coalition (CWC), and U.S. Geological Survey (USGS) have set up monitoring programs to evaluate and gain information to help minimize the impacts or potential impacts of quagga mussels to their facilities and lake ecology. Current monitoring activities and anticipated environmental impacts are depicted in Figures 1 and 2. While the agencies have worked closely and …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Annual Report, Period Ending July 1, 2009, Margaret N. Rees Jul 2009

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Annual Report, Period Ending July 1, 2009, Margaret N. Rees

Limnological Studies

Project 1: Eighteen advisory team meetings were attended this year; technical input was provided as appropriate; and summaries were prepared and delivered to Kent Turner. The SCOP Selenium Management Plan has been reviewed and a report is in preparation.

Project 2: A formal report titled, Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area, was delivered in the second quarter of this year. Subsequently, a poster presentation on this topic was delivered at the Lake Mead Science Symposium and a manuscript has been prepared for submission to the journal, Lake and Reservoir Management. …


Substrate Monitoring, Contaminant Monitoring, And Educational Outreach On Quagga Mussels (Dreissena Bugensis) In Lake Mead, Nevada, Sara Ann Mueting May 2009

Substrate Monitoring, Contaminant Monitoring, And Educational Outreach On Quagga Mussels (Dreissena Bugensis) In Lake Mead, Nevada, Sara Ann Mueting

UNLV Theses, Dissertations, Professional Papers, and Capstones

The invasive species, the quagga mussel, Dreissena bugensis, was found in Lake Mead, Nevada-Arizona, USA on January 6, 2007. Since then, researchers have been attempting to quantify the amount of damage these mussels will cause to the lower Colorado River basin. Three projects were implemented in this thesis to research the quagga mussel in Lake Mead. First, a study to determine which types of substrates quagga mussels will grow on preferentially was conducted. Six different substrates, Acrylonitrile Butadiene Styrene (ABS) plastic, High Density Polyethylene (HDPE) plastic, Concrete Underlayment Board (CUB), aluminum, stainless steel and fiberglass, were placed in the Boulder …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending April 1, 2009, Margaret N. Rees Apr 2009

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending April 1, 2009, Margaret N. Rees

Limnological Studies

Project 1: Technical input has been provided at two advisory team meetings attended this quarter.

Project 2: Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area (poster) was presented at the Lake Mead Science Symposium; a journal article is in preparation.

Project 3: A draft document titled “Interagency Monitoring Action Plan (I-MAP): Quagga Mussels in Lakes Mead and Mohave” has been subdivided into four major sections and corresponding sub-groups have been formed to provide review and input. Six oral presentations related to quagga mussels were presented at the Lake Mead Science Symposium. Two …


Surface Water Monitoring For Fecal Indicator Bacteria In High-Use Sites Of The Lake Mead National Recreation Area, Patricia Cruz, Vanessa Stevens, Jessie Rinella Jan 2009

Surface Water Monitoring For Fecal Indicator Bacteria In High-Use Sites Of The Lake Mead National Recreation Area, Patricia Cruz, Vanessa Stevens, Jessie Rinella

Lake Mead Science Symposium

The Lake Mead National Recreation Area incorporates 1.5 million acres, including Lake Mead and Lake Mohave. The abundance of recreational activities on Lakes Mead and Mohave can impact the contaminant levels in the water, potentially affecting the health of individuals in contact with the water. The purpose of this study was to review and synthesize information obtained for projects conducted by partner agencies from the Water 2025 Conservation Initiatives, specifically bacterial concentration in high-use areas. Surface water samples were collected between May and September, at 9 high-use sites from 2003 to 2007. Culture analysis was performed to determine the concentration …


Assessment Of Endocrine And Gonadal Condition Of Male Largemouth Bass From Lake Mead, Nevada, Reynaldo Patino, Steven L. Goodbred, Erik Orsak, Jill A. Jenkins, Michael R. Rosen Jan 2009

Assessment Of Endocrine And Gonadal Condition Of Male Largemouth Bass From Lake Mead, Nevada, Reynaldo Patino, Steven L. Goodbred, Erik Orsak, Jill A. Jenkins, Michael R. Rosen

Lake Mead Science Symposium

Las Vegas Bay (LVB) of Lake Mead receives combined flows of tertiary treated wastewater effluent, urban runoff, and groundwater from the Las Vegas metropolitan area. This study examined the potential for endocrine disrupting effects of these anthropogenic inputs on male largemouth bass (Micropterus salmoides). Adult male bass were collected at two sites within Lake Mead: Overton Arm (OA, reference site), and Las Vegas Bay (LVB). Post-spawn fish were collected in July 2007 (n = 6-10 per site) and pre-spawn fish in March 2008 (n = 13 per site). Post-spawn fish were characterized by regressed testes whereas pre-spawn bass had full-grown …


Diversity Of Estrogen Degrading Microorganisms In Las Vegas Wash And Lake Mead, Nevada, Usa, Susanna Blunt, Jim Bruckner, Jenny C. Fisher, Duane P. Moser Jan 2009

Diversity Of Estrogen Degrading Microorganisms In Las Vegas Wash And Lake Mead, Nevada, Usa, Susanna Blunt, Jim Bruckner, Jenny C. Fisher, Duane P. Moser

Lake Mead Science Symposium

Endocrine disrupting chemicals (EDCs) are a subject of intense research as more studies reveal their persistence in the environment and detrimental effects on wildlife. Steroid hormones, including the natural and synthetic estrogens estrone (E1), 17-beta-estradiol (E2) and 17- alpha-ethinyl estradiol (EE2), are among the most bioactive and have been detected at low concentrations in waterways downstream from wastewater treatment plants. Las Vegas Wash, a stream flowing into Lake Mead and fed primarily by treated wastewater, provides a unique experimental system in which to study the role microorganisms play in the fate and dispersal of these compounds in surface waters.


Lake Mead Science Symposium, January 13 An 14, 2009, Las Vegas, Nevada: Program, Kent Turner Jan 2009

Lake Mead Science Symposium, January 13 An 14, 2009, Las Vegas, Nevada: Program, Kent Turner

Lake Mead Science Symposium

Conference program for the 2009 Lake Mead Science Symposium. Includes abstracts of presentations, registration packet, exhibitor and sponsor information.


Lake Mead Symposium Plenary Schedule, Kent Turner Jan 2009

Lake Mead Symposium Plenary Schedule, Kent Turner

Lake Mead Science Symposium

Preliminary schedule for the symposium.


State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2009, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University Jan 2009

State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2009, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University

State of the River Report

No abstract provided.


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending December 31, 2008, Margaret N. Rees Dec 2008

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending December 31, 2008, Margaret N. Rees

Limnological Studies

Project 1: Technical input has been provided at four advisory team meetings attended this quarter.

Project 2: A formal report titled, Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area, has been prepared; an accompanying poster presentation for the Lake Mead Science Symposium is in preparation.

Project 3: A draft document titled, “Interagency Monitoring Action Plan (I-MAP): Quagga Mussels in Lakes Mead and Mohave” has been presented to an interagency core group to review and input. Six oral presentations related to quagga mussels are in preparation by this group for the Lake Mead …


Seasonal Changes In A Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Richard D. Stockwell, Walter S. Borowski Nov 2008

Seasonal Changes In A Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Richard D. Stockwell, Walter S. Borowski

EKU Faculty and Staff Scholarship

WilgreenLake (Madison County, Kentucky) covers ~169 acres, formed in 1966 by damming Taylor Fork. The Wilgreen watershed drains residential developments, modified woodlands, cattle pasture, and some industrial/urban areas in the city of Richmond. The lake is deemed “nutrient impaired” by the EPA.

Our main objective is to document the seasonal changes in key lake parameters from summer stratification through fall overturn over 4 months of sampling, August through November, 2008. We collect temperature, oxygen, pH, and conductivity data from 19 stations at depth intervals of 1 meter using an YSI multi-probe. Concurrent with collecting these framework data, we take water …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2008, Margaret N. Rees Sep 2008

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending September 30, 2008, Margaret N. Rees

Limnological Studies

Project 1: Technical input has been provided at eight advisory team meetings attended this quarter. Broad, overarching “Issues of Concern” developed for the Boulder Basin Adaptive Management Plan are currently under review by Drs. David Wong and Shawn Gerstenberger. A Selenium Management Plan is also under review.

Project 2: Data collected by the Southern Nevada Water Authority has been synthesized to summarize bacteria counts in high-use areas of Lakes Mead and Mohave. This information will be documented and interpreted for management use in a formal report in the upcoming quarter.

Project 3: A draft document titled “Suggested Standard Methods for …


Assessment Of Coliform Bacteria From Point And Nonpoint Sources In The Las Vegas Wash, Susan O'Neill, Kumud Acharya Aug 2008

Assessment Of Coliform Bacteria From Point And Nonpoint Sources In The Las Vegas Wash, Susan O'Neill, Kumud Acharya

Undergraduate Research Opportunities Program (UROP)

This project focuses on an assessment of coliform bacteria from point and non point sources in Las Vegas Wash. Correlations between land use related runoffs, nutrients and organic matter loading and total coliform will be studied. Data will be collected for both daily low and high flow events. Sampling locations will cover all major land use types such as golf course, hotels, hospitals, residential areas, etc., at both the main Wash and its tributaries.


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Progress Report, Period Ending: April 1, 2008, Margaret N. Rees Apr 2008

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Progress Report, Period Ending: April 1, 2008, Margaret N. Rees

Limnological Studies

Hiring: A decision is anticipated in the upcoming weeks regarding the hiring of a limnologist. Two candidates were selected from among three qualified applicants for telephone interviews; they were subsequently interviewed in-person.

Project 1: Review of the draft Boulder Basin Adaptive Management Plan is on-going. Meetings of the Systems Conveyance and Operations Program (SCOP) Technical Advisory Teams were attended.

Project 2: Development of a white paper expressing the joint needs of the entities involved in Water 2025 projects is on-going; scientific review of data and reports related to bacteria in high-use areas of Lake Mead is underway.

Project 3: Discussions …


From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron Jan 2008

From Debate To Design: Issues In Clean Energy And Climate Change Law And Policy, Leslie Parker, Jennifer Ronk, Rachel Maxwell, Bradford Gentry, Marijn Wilder, James Cameron

Yale School of the Environment Publications Series

A report on the work of the REIL Network 2007-2008


State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2008, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University Jan 2008

State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2008, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University

State of the River Report

No abstract provided.


Interagency Science And Research Strategy, Limnological Assistance For Lake Mead National Recreation Area Jan 2008

Interagency Science And Research Strategy, Limnological Assistance For Lake Mead National Recreation Area

Limnological Studies

Helping improve operational efficiency, enhance land stewardship, resource protection, and conservation on the shared public land.


Ecological Consequences Of Invasion Of The Quagga Mussel (Dreissena Bugensis Andrusov 1897) Into Lake Mead, David Wong, Shawn Gerstenberger, Todd Tietjen, Sara Ann Mueting, Eric Michael Loomis Jan 2008

Ecological Consequences Of Invasion Of The Quagga Mussel (Dreissena Bugensis Andrusov 1897) Into Lake Mead, David Wong, Shawn Gerstenberger, Todd Tietjen, Sara Ann Mueting, Eric Michael Loomis

Limnological Studies

Consequences of Invasion of the Quagga Mussel into Lake Mead


Session 7 - Technology And The Creation Of Wilderness: The Making Of Quabbin Reservoir, Timothy J. Farnham Jun 2007

Session 7 - Technology And The Creation Of Wilderness: The Making Of Quabbin Reservoir, Timothy J. Farnham

International Symposium on Technology and Society

Large dams in the United States have frequently been the targets of attacks by environmentalists who believe that the dams and the reservoirs they create are violations of wilderness. There are currently numerous proposals to dismantle some dams in order to restore river ecosystems to their pre-dam conditions, including Hetch Hetchy Reservoir’s O’ Shaunnessy Dam. Less attention has been paid to those dams and reservoirs that have arguably created protected areas that otherwise may have been subject to degradation from development. The Quabbin Reservoir, the primary water source for metropolitan Boston, serves as a prime example. Viewed as an engineering …


Augusta Me: The New Bridge Begets A New Planned Neighborhood, Molly Pulsifer, Richard Barringer Aug 2006

Augusta Me: The New Bridge Begets A New Planned Neighborhood, Molly Pulsifer, Richard Barringer

Planning

Construction of a new Third Bridge over the Kennebec River in Augusta offered the prospect of a new and handsome gateway to the city. Further, the resulting change in traffic patterns offered the City the chance to plan for a pattern of development quite different from what the city had experienced for the past half-century. The case study describes the planning and construction of the new bridge and corridors that re-routed traffic out of Augusta’s downtown and older neighborhoods, and created the opportunity for planned development adjacent to the corridor created by the new bridge. It goes on to describe …


Promoting Low Impact Development In Your Community, New England Environmental Finance Center Jan 2006

Promoting Low Impact Development In Your Community, New England Environmental Finance Center

Planning

Low Impact Development (LID) is an approach to stormwater management and site development that is gaining popularity throughout the country. Its attractiveness lies in its potential to lessen off-site stormwater impacts, reduce costs to municipalities and developers, and promote development that is “softer on the land” compared with typical traditional development. The approach, which is applicable to residential, commercial and industrial projects, and in urban, suburban and rural settings, often is linked with efforts by governments and citizens to foster more sustainable communities.


Ogallala Aquifer, Robert F. Diffendal Jr. Jan 2004

Ogallala Aquifer, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

The Ogallala Aquifer, or High Plains Aquifer, is a porous body of complex sediments and sedimentary rock formations that conducts groundwater and yields significant quantities of water to wells and springs. The principal sediments and rocks of the aquifer range in age from 33 million years old to sediments being deposited today, but the majority is less than 12 million-years old. Much of the aquifer is composed of the Ogallala Group or Formation. The dominant sediments in the Ogallala and the other hydrogeologic units in the aquifer are riverand wind-deposited sands. The aquifer underlies about 174,000 square miles of the …


Bulletin 4418 - Nebru Focus Catchment Report, Agriculture Western Australia Jul 2000

Bulletin 4418 - Nebru Focus Catchment Report, Agriculture Western Australia

Bulletins 4000 -

Nehru Focus Catchment is located in the upper reaches of the Arrowsmith Catchment. It is roughly bounded by Sunset Road in the north, the north-south Kadathinni Hills to the east, the Three Springs - Eneabba Road to the south and Reed Road in the west. It changes in elevation from 372 metres Australian Height Datum (AHD) at roughly the intersection of Nehru Rd the Kadathinni Hills to the east and 220 metres AHD near the outlet of the catchment into the Arrowsmith River.

The total area of the catchment is just over 7,400 hectares.

One of the prime areas of …


Water Resources Issues In The Arkansas Delta, Kenneth F. Steele Jan 2000

Water Resources Issues In The Arkansas Delta, Kenneth F. Steele

Arkansas Water Resources Center Technical Reports

Despite its location in Northwest Arkansas, the Arkansas Water Resources Center (AWRC) is active state-wide. This fact is underscored by the focus of the Center’s session on "Water Resource Issues in the Arkansas Delta" during its recent joint Conference. Water issues in the Delta include declining water tables, salt water intrusion, and water quality (especially suspended sediment, nitrate and pesticides). Presented papers focused on best management practices for cotton production, economics of on-farm reservoirs, chloride content of irrigation water, and landowner education. The AWRC short course was an excellent one on chemical transport in the vadose zone by Dr. Glenn …