Sediment chemistry streams rivers. Medical search. Frequent questions

Soil and Sediment Contamination. (upv.es)
Heavy metals are distributed throughout soil and sediment components and associated with them in various ways, including adsorption, ion exchange, precipitation and complexation and so on [ 2 ]. (intechopen.com)
His Sediment study incorporates themes from Soil science and Grain size. (research.com)

A better understanding of the role of sediment in the fate and effects of emerging contaminants is needed. (usgs.gov)
The objectives of this study were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of. (oregonstate.edu)

Chemistry from thermokarst impacted soils, lakes, and streams near Toolik Lake Alaska, 2008-2011. (mbl.edu)
This file contains data collected from thermokarst impacted soils, lakes, and streams near Toolik Lake Alaska. (mbl.edu)
Journal of Soils and Sediments, 15(5): p. 1265-1274. (vims.edu)
The properties of metals in soils and sediments depend on the physiochemical form in which they occur [ 1 ]. (intechopen.com)

The intended users are managers and planners who need information to develop a water quality monitoring program or project with an emphasis in sediment and hydrology. (document-center.com)
Statistical summaries of streamflow data at 212 stream-gaging sites are presented in this report to aid in appraising the hydrology of river basins in Western Oregon. (oregonstate.edu)

A suite of water chemistry (nutrients, major anions and cations, total suspended sediment) and benthic variables (particulate carbon, nitrogen and phosphorus, and chlorophyll-a) were measured at 6 major sites (2 in 2010 and 4 in 2011). (mbl.edu)
Synoptic water-quality and benthic macroinvertebrate sampling at 14 stream sites to characterize the quality of surface water in the watershed on a seasonal and spatial basis, as well as to assess the effects of wetlands on water quality. (usgs.gov)
I like to think of a benthic macroinvertebrate sample of a stream as a movie and a water quality sample as a snapshot. (maryland.gov)
Certain types of benthic macroinvertebrates such as mayflies, stoneflies, and caddisflies tend to be intolerant of pollution, and therefore are less likely to be present in streams impacted from pollution sources such as suburban or agricultural runoff. (maryland.gov)
Researchers use the distribution and abundance of specific macroinvertebrates to create a Benthic Index of Biotic Integrity (BIBI) rating for streams. (maryland.gov)
The Stream Quality Index (SQI) is based on annual data collected on benthic macroinvertebrates (animals without a backbone that live on the bottom of a stream and are visible to the naked eye). (fairfaxcounty.gov)
Each of the 40 locations receives a score (excellent, good, fair, poor, or very poor) based on the benthic macroinvertebrates found in that stream. (fairfaxcounty.gov)
Benthic invertebrates (science-talk for "aquatic spineless creepy-crawlies") are an excellent start to understanding stream health. (ferniefix.com)
Throughout the valley, the Elk River Alliance maintains 19 temperature loggers, three active hydrometric stations, and ten sites where we monitor benthic invertebrates, water chemistry, and physical parameters. (ferniefix.com)

His work on Sediment transport, Bedrock and Landscape evolution model as part of general Geomorphology research is frequently linked to Advection, bridging the gap between disciplines. (research.com)
Within one scientific family, James W. Kirchner focuses on topics pertaining to STREAMS under Surface runoff, and may sometimes address concerns connected to Geomorphology. (research.com)

Its main tributaries are: Ogilvie River Blackstone River Hart River Wind River (Yukon) Bonnet Plume River Snake River (Yukon) The Peel River joins the Mackenzie in the Mackenzie Delta. (wikipedia.org)
Here we present a small-scale reconnaissance of CECs in bed sediments of the lower Columbia River and several tributaries and urban streams. (usgs.gov)
In the region of the low divider, on the top of a hill located in the paleo-valley on the São Francisco catchment side, next to the current headwaters of its tributaries, a pebbly fluvial Pleistocene unit (deposit of ancestral river before the beginning of the incision stage or being and old terrace) indicates that a major river flowed by the actual divide, in the past. (copernicus.org)
This report presents the concentrations of major ions, nutrients, and trace elements in water and bottom sediments collected in the four-tributaries during the low-flow condition of September 9-13, 1996. (oregonstate.edu)
The river and its tributaries are a critical thoroughfare for an area the size of the continental United States and function as a key source of food and livelihoods for millions of people. (mongabay.com)
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean). (bvsalud.org)

Using public participation to sample trace metals in lake surface sediments: the OPAL Metals Survey. (bgs.ac.uk)
Analysis of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM) for the estimation of potential toxicity in aquatic sediments. (upv.es)
Sediments serve as the ultimate sink of heavy metals in the marine environment and they play an important role in the transport and storage of potentially hazardous metals. (intechopen.com)
Heavy metals entering natural water become part of the water-sediment system and their distribution processes are controlled by a dynamic set of physicochemical interactions and equilibria. (intechopen.com)
Similarly, one of its most flowing current arm of the river, known as the Dique Channel, capture minerals, organic matter, clays and metals. (hilarispublisher.com)
The presence of metallic species in dynamic aquatic structures e.g., rivers) and coasts that interact inwardly (sediments-atmosphere-water) triggers variations on the densities from heavy metals existing onto the water. (hilarispublisher.com)
Heavy metals in water, sediment and some fishes of Buriganga River, Bangladesh. (ac.ir)
Review: Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity and Bioaccumulation. (ac.ir)
Heavy metals pollution profiles in streams serving the Owabi reservoir. (ac.ir)
Biomagnification factors of some heavy and essential metals in sediments, fish and crayfish from Ondo state Coastal Region. (ac.ir)

Acid volatile sulfide predicts the acute toxicity of cadmium and nickel in sediments. (upv.es)
Stream-water chemistry results are contrasted, and trace-element concentrations compared with U.S. Environmental Protection Agency chronic aquatic life toxicity criteria. (oregonstate.edu)

One unique aspect of the Patapsco tributary site surveyed in October 2023 is that not far downstream is the Patapsco River site where Bloede Dam was removed in 2018, through a DNR partnership with American Rivers . (maryland.gov)
In addition, the distribution of this species in New York has increased since 2014 when the upstream passage between Conewango Creek and the Allegheny River was restored via dam removal (Grasso 2023). (nynhp.org)

At the University of Montana, I teach and do research in environmental geoscience, specifically, human effects on rivers, environmental geochemistry and response to global climate change. (umt.edu)

This study is the first to document the occurrence of a large suite of CECs in the sediments of the Columbia River basin. (usgs.gov)
This anomalous low divider is located 25 km north of a 90° elbow that changes the direction of the Grande River from north (towards the São Francisco catchment) to west (towards the Paraná Sedimentary Basin) and corresponds to an expressive morphological record of paleo-valley that seems to have connected the two hydrographic basins currently separated. (copernicus.org)
In addition, the elbow that changes the direction of the Grande River makes it cross a quartzite mountain range through a series of river gorges, before entering in the Paraná Sedimentary Basin. (copernicus.org)
These retrogressive thaw slumps, or landslides - formed as warming temperatures rapidly thaw permafrost - are increasing across the Arctic, including the kilometere-long, 100-meter-deep Batagaika Crater in the Yana River Basin of Siberia. (thenarwhal.ca)
The U.S. Geological Survey (USGS) has worked cooperative with the Unified Sewerage Agency of Washington County (USA) since 1990 to assess water quality in the Tualatin River Basin. (oregonstate.edu)
Scotland's River Basin Management Plan, published by the Scottish Environment Protection Agency in December 2021, aims to remove or ease 262 man-made barriers by 2027. (scotlink.org)
the Amazon carries more than five times the volume of world's second largest river - the Congo - and its basin is home to at least 3,000 species of fish. (mongabay.com)

For example, fish will typically favor a stream that contains a gravel bottom, large rocks, deep pools, and thick streamside vegetation, over sediment-choked streams with muddy bottoms and cleared stream banks. (maryland.gov)
Protect stream quality by maintaining both a riparian buffer that includes herbaceous and/or woody vegetation along the shoreline, and a significant forested buffer. (nynhp.org)
The Elk River watershed interlaces the valley, providing clean water for vegetation, wildlife, and humans. (ferniefix.com)

What is the current condition of our Nation's streams, rivers, and groundwater? (usgs.gov)
However, the fate of infiltrating groundwater pollutants might be influenced by the sediment in eutrophic water bodies. (eugris.info)
Such sediments form an interface between groundwater and surface water and possesses characteristic biological and physico-chemical degradation properties. (eugris.info)
In the SEDBARCAH project, we want to investigate the boundaries of the sediment zone as a barrier against the infiltration of chlorinated aliphatic hydrocarbons (CAH) into surface water and how we can turn this zone into a sustainable and efficient (stimulated) biobarrier technology for protection of surface waters from groundwater contamination. (eugris.info)
The final goal of SEDBARCAH is to investigate the potentials of these (stimulated) sediment biobarriers as a groundwater remediation technology and a surface water pollution and risk prevention technology. (eugris.info)
Hence, the project should comprise a description of the physico-chemistry of the aquifer/sediment/river water compartments at the model sites and its dynamics including description of (i) the relationship between compartment physico-chemistry, their dynamics and fate of CAH and (ii) evaluation of the potential of in situ degradation of CAHs infiltrating into the river bed via the groundwater by sediment microbial communities. (eugris.info)
In addition, strategies to increase the degradation potential in the groundwater-sediment-surface water interface will be tested on these isolated bacteria and in batch and column tests. (eugris.info)
This will result in a guideline to measure, describe and stimulate natural attenuation processes present in the sediment zone of a surface water body receiving contaminated groundwater. (eugris.info)
Establishing the baseline in groundwater chemistry in connection with shale-gas exploration: Vale of Pickering, UK. (bgs.ac.uk)
Water and sediments can move downstream unimpeded, fish and invertebrates can migrate freely, and the river is free to move and adjust naturally on its flood plain, whilst also replenishing groundwater sources. (scotlink.org)

The online water-quality trends mapping tool allows users to visualize trends in water chemistry (nutrients, pesticides, sediment, carbon, and salinity) and aquatic ecology (fish, invertebrates, and algae). (usgs.gov)
They examine processes that transport suspended material (e.g., sediment) and dissolved material (e.g., nutrients) away from crop fields and into regional water bodies. (carleton.edu)
During the project, well and mini-piezometer samples were collected from various depths near stream channels and analyzed for a variety of nutrients. (mbl.edu)
During the project, background samples were collected from four stream channels and analyzed for a variety of nutrients. (mbl.edu)

ARCSS/TK water chemistry and epilithon characterization from the Noatak National Preserve, Kelly River region (2010) and Feniak Lake region (2011). (mbl.edu)
Additional information will be obtained from the isolation, identification, and physiological characterization of bacteria from these CAH contaminated sediments. (eugris.info)
Biological and Chemical Characterization of Metal Bioavailability in Sediments from Lake Roosevelt, Columbia River, Washington, USA. (upv.es)

Matt Pluta, director of Riverkeeper programs for ShoreRivers , which is partnering with the Stroud Center to monitor the Choptank, says sediment pollution is an obvious threat. (stroudcenter.org)
Agriculture is a leading source of sediment pollution, but farmers are helping to change that. (stroudcenter.org)
Working with the Stroud Center and Assateague Coastal Trust , he hopes that by learning more about the movement of sediment, he can ultimately determine the return on investment cover crops offer for reducing sediment pollution compared to other more permanent solutions like streamside forests. (stroudcenter.org)
We want to find out how much of that sediment arrived during the most recent storm because that's the timescale for matching specific pollution sources (and their solutions) with impacts to the bay. (stroudcenter.org)
An index approach to heavy metal pollution assessment of Eme River, Umuahia, Nigeria. (ac.ir)
Application of pollution indices and health risk assessment in the heavy metal content of a south-eastern Nigeria river. (ac.ir)
Heavy metal content of water in Ikwu River (Umuahia, Nigeria): Pollution indices and health risk assessment approach. (ac.ir)
Many pollutants including physical, chemical and bacteriological pollution impact springs, rivers, wells and boreholes in rural area. (scirp.org)

This guide is an assembly of the components common to all aspects of watershed sediment monitoring and fulfills a need in the development of a common framework for a better coordinated and a more unified approach to sediment monitoring in watersheds. (document-center.com)
Rivers carry dirt eroded from upstream watersheds and agriculture fields to estuaries, clouding coastal waters and threatening seagrass beds and oysters," says Scott Ensign, Ph.D., research scientist and assistant director of the Stroud Center. (stroudcenter.org)
The health of our rivers and streams is closely linked to their surrounding watersheds. (fairfaxcounty.gov)

A new USGS study of pesticides in U.S. rivers and streams reports that, on average, 17 pesticides were detected at least once at the 74 river and stream sites sampled 12 to 24 times per year during 2013-2017. (usgs.gov)
There were additional sites sampled for water chemistry above and below thermokarst features in 2011. (mbl.edu)

Students explore how agricultural practices can affect the water quality in streams, rivers, lakes, and coastal areas. (carleton.edu)
The disintegration of subterranean ice that glues together the peat, clay, rocks, sand, and other inorganic minerals is now triggering landslides and slumping at alarming rates, resulting in stream flows changing, lakes suddenly draining, seashores collapsing, and water chemistry being altered in ways that could be deleterious to both humans and wildlife. (thenarwhal.ca)
Freshwater ecologists monitor Fairfax County's streams and lakes to assess water and habitat quality and gauge the overall health of waterways. (fairfaxcounty.gov)
Rivers, streams, lakes and wetlands span thousands of kilometres, connecting the different parts of our landscapes. (canadiangeographic.ca)

Therefore a thorough investigation both in the field and in the laboratory of the physico-chemical and microbial processes occurring in these sediments will be performed and coupled to the CAH-degradation potential present in the sediment interface of two selected contaminated areas. (eugris.info)
Therefore a thorough investigation of the physico-chemical and microbial processes occurring in these sediments will be performed and coupled to the CAH-degradation potential present in these sediments. (eugris.info)
Fluvial forms and processes are crucial in shaping the landscape, as rivers are widespread on most of the Earth's surface. (copernicus.org)
Woelfle-Erskine, Cleo, A.C. Wilcox and Johnnie N. Moore, 2012 , Historical perspectives on geomorphic processes and river restoration in the Clark Fork River, Montana, USA, Earth Surface Processes and Landforms . (umt.edu)
Our rivers have been dammed to power industrial processes, generate electricity and provide drinking water. (scotlink.org)
Installing passes to accommodate the migratory movements of fish does not reinstate natural river processes such as sediment movement or restore natural flow regimes. (scotlink.org)

Natural attenuation of metal contamination in river sediment, Environmental Science and Technology , DOI: 10.1021/es203810j Publication Date (Web): February 9, 2012. (umt.edu)

To track the sources and fate of sediment as it crosses from rivers into estuaries, and ultimately, to help predict when efforts to control erosion will pay dividends downstream, Ensign and freshwater microbiologist Jinjun Kan, Ph.D. , are leading a research project funded by the National Science Foundation that uses new, and potentially cheaper, technology that tracks microbes attached to sediment particles using their DNA. (stroudcenter.org)
His research integrates issues of Denudation, Tectonics, Alluvium and Mountain stream in his study of Erosion. (research.com)

Arrigoni, A., M. Greenwood, and J. Moore, 2010, The relative impact of anthropogenic modifications versus climate change on the natural flow regimes of rivers in the Northern Rocky Mountains, USA, Water Resources Research, doi:10.1029/2010WR009162. (umt.edu)

Simulating the dynamics of sulfur species and zinc in wetland sediments. (upv.es)

This report summarizes a study investigating plastic and microplastic particles in the flow of the Danube River in Austria. (epthinktank.eu)

A new USGS study reports that 16 dissolved pesticides were consistently detected in small streams in 16 urban centers across five regions of the United States. (usgs.gov)
Depending on how that field is managed, you would expect to find more or less fertilizer and pesticides, more or less sediments. (canadiangeographic.ca)

Monitoring may include not only sediments suspended in water but sediments deposited in fields, floodplains, and channel bottoms. (document-center.com)

Fiber-optic distributed temperature sensing (FO-DTS) technology can be used for characterizing estuary-aquifer and stream-aquifer interaction and for identifying transmissive fractures in bedrock boreholes. (usgs.gov)

Sampling method, storage and pretreatment of sediment affect AVS concentrations with consequences for bioassay responses. (upv.es)

But most rivers are disconnected from their floodplains by embankments and flow control structures. (scotlink.org)

ii) explore the boundary conditions and the possibility to increase and sustain removal activities in the sediment zone and (iii) select tools to follow such removal activities in situ. (eugris.info)
This will be done by studying the dynamics of the active microbial community and active catabolic gene composition at different depths of sediment samples both obtained in situ or studied in batch and column experiments. (eugris.info)
Water characteristics (measured in situ) and laboratory geochemical analysis of water and sediment in this area to quantify the increase in dissolved constituents in streams attributable to historical mining activity. (usgs.gov)

Journal of Agricultural and Food Chemistry. (usda.gov)

Scotland's rich industrial heritage has however resulted in a legacy of interventions and barriers in our freshwater environments, particularly to free-flowing rivers. (scotlink.org)
Although many barriers have been removed, over 2,200 barriers remain in Scottish rivers. (scotlink.org)

Each sediment particle in that bucket of water hosts bacteria, archaea, fungi, and other organisms that reflect where that particle was in the past week: the river, the estuary, and other stopping points in between. (stroudcenter.org)

Columbia River mainstem, suggesting a higher risk of exposure to aquatic life in lower order streams. (usgs.gov)

Surficial bed sediment samples were collected from the Columbia River, the Willamette River, the Tualatin River, and several small urban creeks in Oregon. (usgs.gov)
Water samples were taken at 5 locations at both I-Minus2 and Toolik River thermokarst sites (10 sampling locations total). (mbl.edu)
The Elk River Alliance collects invertebrate samples, has them analysed by a taxonomist, and assesses the invertebrate community. (ferniefix.com)
N. fowleri and thermophilic amebae were detected in recreational water and sediment samples throughout the facility. (cdc.gov)

Streams are generally rated "poor" in more developed areas of Maryland that receive pollutants from stormwater runoff and other human activities, while streams rated "good" tend to be in less developed areas. (maryland.gov)
The water quantity was assessed by the measurement of runoff or discharge at specific river cross sections using floating method for surface water and bucket and stopwatch method for springs and boreholes. (scirp.org)

The Regional Stream Quality Assessment (RSQA) is studying the relations between stressors (chemical and physical) and stream ecology (fish, algae, and aquatic invertebrates) at small streams in five large regions of the United States. (usgs.gov)
The flow of water amongst the stones and gravels below and alongside the river is incredibly important, forming a refuge and habitat for the young of many invertebrates and often influencing the chemistry and life in the river above. (scotlink.org)
Because they are small and have a short lifespan, the types of invertebrates living in a stream can quickly change if water quality suddenly degrades. (ferniefix.com)

Every year scientists from the Maryland Department of Natural Resources crisscross the state with notebooks, nets, and other equipment looking for insects and other wildlife as part of the Maryland Biological Stream Survey. (maryland.gov)
At the Patapsco tributary, scientists used a D-net - so named because its frame is shaped like the letter "D" - to scoop the leaves from the stream bed and sift for insects and other critters. (maryland.gov)
However, excessive sediment over prolonged periods can become harmful by clogging the gills of fish and insects. (ferniefix.com)

How does temporal variation affect the value of stream water as a medium for regional geochemical survey? (bgs.ac.uk)

In a different context, such as a landscape covered by forest, the rain that moves toward waterways would again carry different sediments, different traces. (canadiangeographic.ca)

The quality of river water and spring was identified in terms of its physical, chemical, and biological parameters. (scirp.org)
Other parameters, like sediment levels, are less obvious. (ferniefix.com)

While diving in the Cascadia Margin, our team will sample for gas, fauna, seawater, sediments and rocks to examine the link between fluid chemistry and seep fauna as well as life at different sites and depths. (nautiluslive.org)

2012. Brominated and chlorinated flame retardants in San Francisco Bay sediments and wildlife. (vims.edu)
But our rivers need space to move and adjust naturally to varying water volumes so that they can regenerate habitat, improve wildlife, and help us adapt to climate change. (scotlink.org)
We need concerted action to restore our rivers, to set them free to move and meander, to allow Salmon and Sea Trout to access their ancestral spawning grounds, and to allow wildlife to flourish along their banks. (scotlink.org)

As methane enters the water column at the sediment-ocean boundary, a fraction dissolves into the local sea-water and eventually oxidizes to carbon dioxide, while the remaining part rises up in the form of gas bubbles. (nautiluslive.org)

La couche active est échantillonnée en utilisant l'échantillonneur de sol ADAPT qui permet la détermination de la masse volumique, à chaque profondeur (surface, -5 cm, -15 cm, -30 cm, -40 cm et au max. (ulaval.ca)
Controls on surface water quality in the River Clyde catchment, Scotland, UK, with particular reference to chromium and lead. (bgs.ac.uk)

1.1 Purpose -This guide is intended to provide general guidance on a watershed monitoring program directed toward sediment. (document-center.com)
Other standards and guides included in the reference and standard sections describe in detail the procedures, equipment, operations, and site selection for collecting, measuring, analyzing, and monitoring sediment and related constituants. (document-center.com)
1.5 Additional ASTM and US Geological Survey standards applicable to sediment monitoring are listed in Appendix X1 and Appendix X2. (document-center.com)
Due to the large number of optional standards and procedures involved in sediment monitoring, most individual standards are not referenced in this document. (document-center.com)
This guide is intended to be used in the planning stage or phase of developing a sediment monitoring program. (document-center.com)
Sediment specialists will also find information on procedures, equipment, methodology, and operations to conduct a monitoring program. (document-center.com)
This guide is used during the planning process of developing, designing, and reevaluating a sediment monitoring program. (document-center.com)
This river/stream site, maintained by the Minnesota Department of Agriculture - Pesticide Monitoring (identifier MNDA_PESTICIDE), has the name "MINNESOTA R @ CSAH-24 BRIDGE, 1 MI S OF COURTLAND, MN" and has the identifier MNDA_PESTICIDE-S000-054. (waterqualitydata.us)
The long-term stream monitoring program meets the requirements of state and federal regulations and supports the Board of Supervisors' environmental improvement program by providing an ongoing evaluation of the streams. (fairfaxcounty.gov)
The long-term stream monitoring program meets the requirements of state and federal regulations and supports the Board of Supervisors' environmental improvement program. (fairfaxcounty.gov)

Peel River Above Fort McPherson (10MC002) - Hydrometric data from Environment Canada Peel River Above Fort McPherson (10MC002) - Hydrometric data from Environment Canada ANLC : Alaska Native Place Names Meagan Wohlberg (2013-05-13). (wikipedia.org)
Users can access an online mapping tool to compare water quality at small streams across a region, see scorecards that summarize stream health at each stream site, and download data for hundreds of chemical compounds. (usgs.gov)
ARCSS/TK water chemistry and total suspended sediment data from I-Minus2 and Toolik River thermokarsts and receiving streams, near Toolik Field Station, Alaska, summers 2006-2013. (mbl.edu)
Floating in motorboats above the waters of the Choptank and Pocomoke rivers in Maryland, science teams from Stroud™ Water Research Center are collecting data to understand what lurks beneath. (stroudcenter.org)
This report is a compilation of water and sediment chemical data generated by the USGS study of indigenous, arsenic-sequestering microbial communities. (usgs.gov)
The scientists also set up two nets across the stream to cordon off an approximately 75-square meter stream section so the fish data they collect can be compared against other stream sections of the same size. (maryland.gov)
To determine those patterns, we analyzed fish and macroinvertebrate taxa richness data obtained at 3475 sites collected by the USEPA's National Rivers and Streams Assessment. (bvsalud.org)
I figured the best way to answer my questions would be to visit several streams and collect data. (canadiangeographic.ca)
Using a geographic information system - a computer tool that allows you to map, search and analyze data - I located 28 different but comparable streams that met my research criteria. (canadiangeographic.ca)
Using the data collected, the Elk River Alliance provides pertinent information for Elk Valley citizens in an easily digestible format though online fact sheets, outreach booths, signage, and at public events. (ferniefix.com)

Projected Hg dietary exposure of 3 bird species nesting on a contaminated floodplain (South River, Virginia, USA). (vims.edu)
The scientists collect and analyze bugs, fish, and other indicator species to develop a score that can show whether a stream is biologically healthy or not. (maryland.gov)
These results can be used by managers to plan conservational strategies to ease the dispersal of species, especially those that are at the greatest risk of extinction or invasion and that are in rivers fragmented by dams. (bvsalud.org)
Goulding has written and co-authored some of the most definitive books and papers on the river, its resident species, and its ecological function. (mongabay.com)
On top of all that, streams and their riparian zones provide habitat for numerous species that we care about. (canadiangeographic.ca)
Seeing a sudden shift from good indicator species to bad indicator species can suggest stream health is degrading and we need to take a deeper look at the cause. (ferniefix.com)

Fluvial systems bear enormous importance due to their consequences on sediment connectivity from uplands to oceans, on available water resources, on stream ecology, on natural hazards scenarios, and on ecosystem services for humanity. (copernicus.org)
Over time, southeast Utah was flooded by oceans, crisscrossed by rivers, covered by mudflats and buried by sand. (protrails.com)

whether the water is flowing with sediment from a strong rain storm or baking in the hot summer sun," said Kyle Hodgson, a DNR biologist. (maryland.gov)
Sediment-filled storm run-off drains into these rivers, scouring the surrounding landscape of into a network of tributary canyons, pour-offs and washes. (protrails.com)

They currently sample about 200 streams per year for macroinvertebrates, fish, and environmental factors such as habitat and water chemistry. (maryland.gov)
Biologists can sometimes tell whether a stream will contain healthy amounts of fish based on the habitat they observe. (maryland.gov)
For example, the creation of the Allegheny Reservoir in the 1960s reduced the available habitat for the Streamline Chub in the Alleghany River roughly by half (Carlson et al. (nynhp.org)
In the 1960s, impoundment of the Allegheny River removed about half of the available Steamline Chub habitat in New York (Carlson et al. (nynhp.org)
Release of methane into the ocean supports the formation of fish habitat through long-term precipitation of carbonate hardgrounds, fuels biological seep communities at the seafloor, has an impact on the chemistry and biology of the overlying water column, and is a major process by which organic matter is recycled back into the ocean. (nautiluslive.org)
Clean water provision, carbon storage, habitat quality, and tree diversity were significantly higher in and around streams surrounded by intact forest - protected or not. (canadiangeographic.ca)
Sediment can also choke gravel beds which are vital for fish spawning and invertebrate habitat. (ferniefix.com)

Yet, protecting a stream and the land that surrounds it could have an important effect on that stream - and, subsequently, on the people and animals that interact with it. (canadiangeographic.ca)

How fast sediment moves from an upstream source to an estuary - days, months, decades - depends on the size of the watershed, the type of river, and the type of coastline it feeds," Ensign says. (stroudcenter.org)

Knowing the current water-quality conditions of our rivers and streams and where those conditions have improved or deteriorated is critical information for resource managers and the public. (usgs.gov)
Their presence in a stream is one factor that can indicate healthy stream water quality. (maryland.gov)
Ecologists measure the extent to which human activities affect watershed health by gathering and recording information on physical conditions, water quality and living communities in streams and in the surrounding environment. (fairfaxcounty.gov)
Understanding water quality is the first step to maintaining healthy streams. (ferniefix.com)

A large diversity of healthy fish is another indicator that a stream is doing well. (maryland.gov)
To search for fish in the Patapsco stream, DNR Secretary Josh Kurtz and several of the stream biologists donned electrofishers that made them look like the Ghostbusters. (maryland.gov)

2013. Higher and more variable methylmercury biomagnification factors for floodplain than the contiguous river (South River, Virginia USA). (vims.edu)

Magdalena River is a superficial water body from Colombia, which flows into the Caribbean Sea. (hilarispublisher.com)

Identification of water body status in Nigeria using predictive index assessment tools: a case study of Eme River, Umuuahia, Nigeria. (ac.ir)

Anatomy3

Organisms42

Diseases3

Chemicals and Drugs50

Analytical, Diagnostic and Therapeutic Techniques and Equipment17

Psychiatry and Psychology2

Phenomena and Processes59

Disciplines and Occupations16

Anthropology, Education, Sociology and Social Phenomena3

Technology, Industry, Agriculture11

Humanities2

Information Science3

Health Care42

Geographicals16

Soil3

Contaminants2

Soils4

Hydrology2

Benthic9

Geomorphology2

Tributaries6

Metals10

Toxicity2

20232

Geochemistry1

Basin7

Vegetation3

Groundwater10

Nutrients4

Characterization3

Pollution8

Watersheds3

Sites sampled2

Lakes4

Processes6

Contamination1

Erosion2

Natural flow regimes1

Wetland1

Particles1

Pesticides2

Bottoms1

Bedrock1

Concentrations1

Floodplains1

Situ3

Agricultural1

Barriers2

Particle1

Aquatic life1

Samples4

Runoff2

Invertebrates3

Insects3

Geochemical1

Waterways1

Parameters2

Depths1

Wildlife3

Boundary1

Surface2

Monitoring10

Data10

Species6

Oceans2

Storm2

Habitat7

Interact1

Moves1

Water Quality4

Fish2

Biomagnification1

Flows1

Assessment1