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This presentation aims to inform the audience of the strengths and weaknesses of various rainfall-runoff models. Runoff plays an important role in the hydrological cycle by returning excess precipitation to the oceans and controlling how much water flows into stream systems. Mode...

Integrated water resources management (IWRM) is a planning framework to balance tradeoffs between competing water uses within a watershed. Water resources planning with IWRM is a complex process, one tool available to aid planners is the Watershed Management Optimization Support ...

Integrated water resources management (IWRM) is a planning framework to balance tradeoffs between competing water uses within a watershed. One tool available to aid planners with IWRM is the Watershed Management Optimization Support Tool (WMOST), an Excel-based tool that supports...

The Water Network Tool for Resilience (WNTR) is a new software package that integrates hydraulic and water quality simulation, a wide range of damage and response models, and resilience metrics into a single software framework, allowing for end-to-end evaluation of drinking water...

Urban water systems consist of natural and engineered flows of water interacting in complex ways. System complexity can be understood via mass conservative models that account for the interrelationships among all major flows and storages. We have developed a generic urban water s...

Epiphytes on seagrass (Zostera marina) growing in the lower intertidal were examined along an estuarine gradient within Yaquina Bay, Oregon over a period of 4 years. The Yaquina Estuary receives high levels of nutrients from the watershed during the wet season and from the ocean...

The United States Harmful Algal Bloom and Hypoxia Research Control Act of 2014 identified the need for forecasting and monitoring harmful algal blooms (HAB) in lakes, reservoirs, and estuaries across the nation. Temperature is a driver in HAB forecasting models that affects both ...

As a pre-emergent or early post-emergent herbicide, thiobencarb is widely used to control for grasses and broadleaf weeds in rice fields in Northern California. Released paddy water containing thiobencarb may pose ecological risks to non-targeted organisms (e.g., aquatic inverteb...

Local, state, federal, tribal and private stakeholders have committed significant resources to restoring Puget Sound&rsquo;s terrestrial-marine ecosystem. Though jurisdictional issues have promoted a fragmented approach to restoration planning, there is growing recognition that a...

Local, state, federal, tribal and private stakeholders have committed significant resources to restoring Puget Sound&rsquo;s terrestrial-marine ecosystem. Though jurisdictional issues have promoted a fragmented approach to restoration planning, there is growing recognition that a...

Sediment toxicity tests are used for contaminated sediments, chemical registration, and water quality criteria evaluations and can be a core component of ecological risk assessments at contaminated sediments sites. Standard methods for conducting sediment toxicity tests have been...

Despite being a remarkably biodiverse taxon, the class Deltaproteobacteria includes relatively few model hydrocarbonoclastic isolates. These organisms as well as notable enrichment cultures containing Deltaproteobacteria are able to anaerobically metabolize a wide variety of nor...

Examine influence of nutrient availability on life cycle progression and morphology. Step-wise analysis of internal regulators, nutrient constraints, toxin production, and morphology through Cell Isolation.

Six bioretention units (widths 7.1 m) at EPA’s Edison Environmental Center were constructed to evaluate sizing of surface area to watershed area. Three sizes were tested in duplicate with changes in aspect ratio of length from inlet (northern) wall by doubling successive length f...

Six bioretention units (widths 7.1 m) at USEPA&rsquo;s Edison Environmental Center were constructed to evaluate sizing of surface area to watershed area. Three sizes were tested in duplicate with changes in aspect ratio of length from inlet (northern) wall by doubling successive ...

The ongoing evolution of mixing models has resulted in a confusing array of software tools that differ in terms of data inputs, model assumptions, and associated analytic products. Here we introduce MixSIAR, an inclusive, rich, and flexible open-source Bayesian stable isotope mix...

A review of animal illness and One Health and cyanobacteria. Animal illnesses and deaths associated with exposure to toxic cyanobacteria can be sentinel events that inform human health risks.

The US Environmental Protection Agency&rsquo;s (EPA) Index of Watershed Integrity (IWI) is used to calculate and visualize the status of natural watershed infrastructure that supports ecological processes (e.g., nutrient cycling) and services provided to society (e.g., subsistenc...

A newly developed integrated cell culture reverse transcriptase quantitative PCR (ICC-RTqPCR) method and its applicability in UV disinfection studies is described. This method utilizes a singular cell culture system coupled with four RTqPCR assays to detect infectious serotypes t...

A vast amount of future climate scenario datasets, created by climate models such as general circulation models (GCMs), have been used in conjunction with watershed models to project future climate variability impact on hydrological processes and water quality. However, these low...

Integrated Water Resources Management (IWRM) involves &ldquo;a process which promotes the coordinated development and management of water, land, and related resources in order to maximize the resultant economic and social welfare in an equitable manner without compromising the su...

Nano-zero valent iron (nZVI) due to its high activity towards persistent organic contaminant degradation and heavy metal removal has attracted applications in industrial waste water treatment as well as in situ soil remediation techniques. Enhancement of nZVI&rsquo;s catalytic ac...

In vitro based assays are used to identify potential endocrine disrupting chemicals. Thyroperoxidase (TPO), an enzyme essential for thyroid hormone (TH) synthesis, is a target site for disruption of the thyroid axis for which a high-throughput screening (HTPS) assay has recently ...

Ecological applications of portfolio theory demonstrate the utility of this analytical framework for understanding the stability of commercial and indigenous Pacific Salmon fisheries. Portfolio theory also has the potential to aid in recovery planning for threatened and endangere...

Norovirus is one of the most common causes of gastroenteritis. Following infection, anti-norovirus salivary immunoglobulin G (IgG) rises steeply within 2 weeks and remains elevated for several months; this immunoconversion can serve as an indicator of infection. We used a multipl...