Life Sciences Commons^™

The Ecology Of Antibiotic Resistance: Sources And Persistence Of Vancomycin-Resistant Enterococci And Antibiotic Resistant Genes In Aquatic Environments, Suzanne M. Young

USF Tampa Graduate Theses and Dissertations

The growing crisis of antibiotic resistance is a major threat to ecosystems and human health. Infections caused by known and emerging antibiotic resistant pathogens are on the rise globally, with approximately 700,000 deaths per year caused by antibiotic resistant bacteria (1). In the United States, infections from antibiotic resistant bacteria cause more than 2 million illnesses and 23,000 deaths (2). Antibiotic resistant bacteria and antibiotic resistance genes are released into aquatic ecosystems through hospital waste, residential sewer lines and animal agricultural waste streams. Animal agriculture accounts for approximately 70% of antibiotic use in the United States (3). In agricultural ecosystems, …

2015, November - Salinas River Salt Modeling Report , Tetra Tech For California Central Coast Regional Water Quality Control Board And Us Environmental Protection Agency, Region Ix

State and Federal Documents Relating to Monterey and San Luis Obispo Counties

Report prepared by Tetra Tech on behalf of California Central Coast Regional Water Quality Control Board and US Environmental Protection Agency, Region IX with a view of development of salt-related TMDLs and a salt and nutrient management plan for the Salinas Valley aquifers. The report provides data analysis and a literature review, development of a water and salt mass balance tool, and salt sources assessment. Recommendations regarding improved representation of cropland locations, rotations, and irrigation practices are provided.

Summary Report Of Enhanced Monitoring And Pollution Source Tracking Efforts In The Willard Beach Watershed, Maine, 2012-2016, M. Sims, K. Kaczor

Maine Sea Grant Publications

Willard Beach is a popular recreation area located in South Portland used primarily by families with young children. Routine monitoring at the beach revealed elevated bacteria levels, prompting the need for enhanced monitoring within the watershed to determine the nature and extent of potential bacteria inputs. Although the waste of domestic and wild animals can contribute to impaired water quality and pose a public health risk, efforts have focused primarily on identifying and removing human sources (e.g. malfunctioning septic systems, faulty sewer lines) of fecal pollution.

Maine Healthy Beaches Program 2016 Annual Report To U.S. Epa, K. Kaczor, M. Sims

Maine Sea Grant Publications

Maine Healthy Beaches (MHB) is managed by the Maine Department of Environmental Protection (ME DEP) and coordinated by the University of Maine Cooperative Extension (UMaine Extension). In 2016, this team worked with 28 local management entities to conduct routine monitoring, assessment, and public notification of water quality conditions for 60 beach management areas spanning Kittery to Mount Desert Island. MHB staff continued to build local capacity for well-informed beach management and to address pollution issues when they arose during the beach season.

Summary Report Of Enhanced Monitoring And Pollution Source Tracking Efforts In Goosefare Brook, Maine, 2012-2016, M. Sims, K. Kaczor

Maine Sea Grant Publications

The Goosefare Brook (GFB) forms the border between the City of Saco to the south and Town of Old Orchard Beach (OOB) to the north. In response to concerns over water quality in the mouth and adjacent beach water, the Maine Healthy Beaches (MHB) program has supported multi-year enhanced monitoring and pollution source tracking efforts, held Stakeholder Workshops, and more to address impaired water quality throughout the watershed. Over the past five years, the MHB program has focused primarily on paired enterococci and optical brightener samples in OOB’s New Salt Rd. Tributary (NSRT). This work identified widespread bacterial contamination throughout …

2013-2014, August - Integrated Regional Water Management Plan For The Greater Monterey County Region

Miscellaneous Monterey and San Luis Obispo County Documents and Reports

An Integrated Regional Water Management Plan (IRWM Plan) developed by 18 member entities that include government agencies, nonprofit organizations, educational organizations, water service districts, private water companies, and organizations representing agricultural, environmental, and community interests. The IRWM Plan is an expansion and modification of a previous plan – the May 2006 Salinas Valley Integrated Regional Water Management Functionally Equivalent Plan developed by Monterey County Water Resources Agency. While the traditional approach to water resource management has typically involved separate and distinct agencies managing different aspects of the water system, i.e., water supply, water quality, flood management, and natural resources, integrated …

Evaluation Of The Correlation Between The Oxidation Reduction Potential And Free Chlorine Residual For Different Chlorine Sources Used In Poultry Drinking Water Sanitation, Samantha Renee Cox

Graduate Theses and Dissertations

A critical component in commercial poultry production is to ensure birds are provided clean, quality water. Multiple disinfectants can be utilized to optimize a good water quality program. The goal of these water disinfectants is to greatly reduce or eliminate the presence of all bacteria. In recent years, the oxidation-reduction potential (ORP) meter has been a tool utilized by the poultry industry to monitor chlorine efficacy in drinking water. An ORP reading of 650-750 millivolts (mV) has become the industry standard for assuring an acceptable sanitizing residual of free chlorine is present for controlling microbial contamination regardless of the actual …

Furman University Lake Restoration Project

Furman Lake Restoration Book Gallery

An overview of the Furman Lake Restoration Project. The overview includes photographs and charts. It provides information on the history of the Furman Lake, it's environmental health decline throughout the years, and the lake's restoration. The overview details the Furman Lake's problems, causes of these problems, and solutions. It describes Furman's progress in the restoration project, as well as it's goals for the future.

Land Use, Stream Stability, And Benthic Invertebrates In A Dry Forest Watershed Of Western Costa Rica, Jacqueline Ann Demko

USF Tampa Graduate Theses and Dissertations

There is a paucity of data on dry forests, the most threatened biome in the tropics. The Nandamojo is a tropical dry forest watershed in Western Costa Rica that has been impacted by varying degrees of human induced modifications. This research was conducted to examine the influence of land use and channel characteristics on invertebrate communities within a sub basin of the Nandamojo watershed. This study addressed three hypotheses: (1) sites with low tree cover and small riparian buffer zones will have high erosion, (2) macroinvertebrate abundance will be lower at sites with low channel stability values, and (3) benthic …

2016 Goosefare Brook Mst Summary And Next Steps, M. Sims, K. Kaczor

Maine Sea Grant Publications

No abstract provided.

Jordan River Monitoring Report, Ashley Taylor, Anna Farrell

Maine Sea Grant Publications

In congruence with the Maine Department of Marine Resources’ (DMR) efforts to monitor declining water quality in the Jordan River, Frenchman Bay, Maine, the Community Lab at MDI Biological Laboratory implemented regular water quality monitoring at additional sites in the watershed to supplement the work of the DMR. Water samples were collected weekly between June and August of 2017 by staff and students from the Community Lab. Samples were collected via boat and foot to reach additional intermittent streams and smaller tributaries that feed into the Jordan River. Samples were analyzed for Enterococcus bacteria, optical brighteners, and salinity. A goal …

Clamming In Maine, Brunswick High School

Maine Sea Grant Publications

To become good environmental stewards and gain knowledge of viable economic opportunities, students need opportunities to learn about their local ecosystem and natural resources. The project leader will provide Brunswick High School students with the hands-on experience and curriculum to directly learn about an important local marine habitat and resource. Drawing on curricula from organizations such as the Friends of Casco Bay, Downeast Institute, and the Island Institute, McCullough has designed a monitoring program in which students will take environmental measurements (oxygen, nutrients, temperature, salinity, predation, invasive species, and growth rate); monitor green crab populations; and collect wild oyster spawn …

Genetic Variability Within Seagrass Of The North West Of Western Australia: Report Of Theme 5 - Project 5.2 Prepared For The Dredging Science Node, Kathryn Mcmahon, Udhi Hernawan, Kor-Jent Van Dijk, Michelle Waycott, Ed Biffin, Richard Evans, Paul Lavery

Research outputs 2014 to 2021

This study was the first of its kind to examine the patterns of genetic diversity in seagrasses in the Pilbara region of WA. Three species were assessed: Halophila ovalis (6 populations), Halodule uninervis (8 populations) andThalassia hemprichii (3 populations) at a range of spatial scales, within a meadow (centimetres−metres), among meadows at a local scale (2−60 km) and among meadows at a regional scale (up to 500 km). Due to the varied distribution of species all species across the same spatial scale and range of environments could not be sampled, so a nested approach was designed, with sites …

Natural Dynamics: Understanding Natural Dynamics Of Seagrasses Of The North West Of Western Australia. Report Of Theme 5 - Project 5.3 Prepared For The Dredging Science Node, Mat Vanderklift, Douglas Bearham, Mick Haywood, Hector Lozano-Montes, Roisin Mccallum, James Mclaughlin, Kathryn Mcmahon, Nick Mortimer, Paul Lavery

Research outputs 2014 to 2021

Relatively little is known of the spatial and temporal dynamics of seagrass meadows in the northwest of Western Australia, but such knowledge is needed when designing and evaluating studies that aim to detect potential dredging-related impacts on seagrass, and when making predictions about the likelihood of, and speed of recovery from such impacts. This study was undertaken to improve our understanding of the spatial and temporal patterns in seagrass composition, abundance and reproductive phenology in the Pilbara. We also characterised key environmental parameters, especially light, that influence seagrass survival and can be altered by dredging.

Aims

To improve our understanding …

Current State Of Knowledge Regarding The Effects Of Dredging-Related ‘Pressure’ On Seagrasses: Report Of Theme 5 - Project 5.1.1 Prepared For The Dredging Science Node, Kathryn Mcmahon, Paul Lavery, John Statton, Roisin Mccallum, Udhi Hernawan

Research outputs 2014 to 2021

This review summarises our understanding, from a northwest of Western Australia and global perspective, the pressures seagrasses are exposed to from dredging, their tolerance thresholds and responses to dredging related stressors, and the bioindicators of dredging related stressors. From this information, we also identified gaps in our knowledge and areas where environmental management and monitoring approaches could be improved.

Aims

To determine the levels of stress (light reduction/sediment deposition) that occur under dredging conditions and evaluate the likely effect of these levels of pressure based on the existing seagrass literature, considering the range of variability and environmental quality conditions associated …