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Interest in connectivity has increased in the aquatic sciences, partly because of its relevance to the Clean Water Act. This paper has two objectives: (1) Provide a framework to understand hydrological, chemical, and biological connectivity, focusing on how headwater streams and ...

Differences in animal distributions and metabolic demands can influence energy and nutrient flow in an ecosystem. Through taxa-specific nutrient consumption, storage, and remineralization, animals may influence energy and nutrient pathways in an ecosystem. Here we show these taxa...

Coral reefs worldwide have degraded during the last five decades. Protection of reefs is challenging because of the many watershed, coastal and oceanic stressors that affect them. The Clean Water Act (CWA) is available to States and jurisdictions to protect reefs, but physical an...

This paper evaluates the current state of life cycle impact assessment (LCIA) methods used to estimate potential eutrophication impacts in freshwater and marine ecosystems and presents a critical review of the underlying surface water quality, watershed, marine, and air fate and ...

In aquatic ecosystems, biological indicators are used in concert with nutrient concentration data to identify habitat impairments related to cultural eutrophication. This approach has been less commonly implemented in coastal areas due to the dominance of physical conditions in s...

Low Impact Development (LID) is an alternative to conventional urban stormwater management practices, which aims at mitigating the impacts of urbanization on water quantity and quality. Plot and local scale studies provide evidence of LID effectiveness; however, little is known a...

The EPA is responsible for ensuring the safety of thousands of chemicals. Quantitative exposure data are available for only a small fraction of registered chemicals. This type of exposure data is needed to thoroughly evaluate chemicals for potential risks to humans, wildlife and ...

While underwater video collection technology continues to improve, advancements in underwater video analysis techniques have lagged. Crowdsourcing image interpretation using the Zooniverse platform has proven successful for many projects, but few projects to date have included vi...

The spatial distribution of long-term changes in climatic factors and its relation with vegetation cover, human health, hydrology and many other ecosystem processes help to identify the consequences of climatic factors changes. In recent studies, the significant changes of select...

Advances in understanding the optics of shallow water environments, submerged vegetation canopies and seagrass physiology, combined with improved spatial resolution of remote sensing platforms, now enable eelgrass ecosystems to be monitored at a variety of time scales from earth-...

Currently, several studies highlight the importance of ecosystem services, including those related to water resources, such as water supply, irrigation, recreation and power generation. Augmented production and transport of fine sediments resulting from increased human activities...

Tidal freshwater ecosystems experience acute seawater intrusion associated with periodic droughts, but are expected to become chronically salinized as sea level rises. Here we report the results from an experimental manipulation in a tidal freshwater Zizaniopsis miliacea marsh on...

It is important to understand molecular effects on plants exposed to compounds released from use of products containing engineered nanomaterials. Here, we present mRNA sequencing data on transcriptome impacts to Douglas-fir following 2 weeks of sublethal exposure to 30:1 diluted ...

This presentation describes EPA Research for a staff visit for Congressional Rep. Suzanne Bonamici (OR 1st District). It provides an overview of water quality and ecosystem services research by the EPA at the Western Ecology Division. This presentation is given in conjunction wit...

Over recent decades the government has made a wealth of information publicly available as part of the Federal Open Data Policy. The EnviroAtlas provides a wealth of geospatial data and other resources to decision makers, educators, and researchers. EnviroAtlas resources are organ...

The purpose of this study was to determine if an interdisciplinary team using a qualitative proper functioning condition (PFC) assessment protocol could identify and reverse significant detrimental ecological alterations which occurred within Gertie's Creek watershed, Ontario, Ca...

This report presents multiple lines of inquiry focused on improving the public’s use of ecosystem goods and services (EGS) concepts, data, and tools for addressing environmental, social, and economic problems. The case studies and data tools and models in the report highlight the...

Natural ecosystems perform fundamental life-support services upon which human civilization depends. However, many people believe that nature provides these services for free and therefore, they are of little or no value. One nearly forgotten ecosystem service is ecotherapy &ndash...

Until somewhat recently there was limited awareness about the impact of soils on human health, ecosystems, and economy. Only in the second half of the twenty century the world awaked for the poor condition of soils, and to its several threats (e.g. soil contamination), as well as...

Land cover changes associated with urbanization have negative effects on downstream ecosystems. Contemporary urban development attempts to mitigate these effects by designing stormwater infrastructure to mimic predevelopment hydrology, but their performance is highly variable. Th...

Reservoirs are a globally significant source of methane (CH4) to the atmosphere. However, emission rate estimates may be biased low due to inadequate monitoring during brief periods of elevated emission rates (i.e. hot-moments). Here we investigate CH4 bubbling (i.e. ebullition...

Environmental geochemists frequently use archives of sediment, peat, and glacial ice to reconstruct historical trends in atmospheric mercury (Hg) deposition to ecosystems. We used a long-term fish archive, measuring Great Lakes whole fish Hg stable isotope ratios, to relate tempo...

Due to the large quantity of new chemicals being developed and potentially introduced into aquatic ecosystems, there is a need to prioritize chemicals with the greatest likelihood of ecological hazard for further research. To this end, a useful in silico estimation of ecotoxicity...

The industrial use and application of carbon-based nanomaterials (CNMs) have caused a rapid increase in their production over the last two decades. Current analytical methods for detecting CNMs in the environment are lacking, making environmental fate and transport modeling a pra...

Environmental geophysics investigates the geophysical response to natural and anthropogenic materials, processes, and alterations, which impact human health and ecosystems within the near surface of the earth. This presentation will cover biogeophysics, geophysical monitoring an...