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Experimental observations on the decay of environmental DNA from bighead and silver carp-Data Interest in the field of environmental DNA (eDNA) is growing rapidly and eDNA surveys are becoming an important consideration for aquatic resource managers dealing with invasive species. However, in order for eDNA monitoring to mature as a research and management tool, there are several critical knowledge gaps that must be filled. One such gap is the fate of eDNA materials in the aquatic environment. Understanding the environmental factors that influence the decay of eDNA and how these factors impact detection probabilities over time and space could have significant implications for eDNA survey design and data interpretation. Here we experimentally explore eDNA decay in waste materials and reproductive cells obtained... Categories: Data; Types: Citation; Tags: Aquatic Biology, Ecology, Environmental Health, Genetics, Missouri, All tags... USGS Science Data Catalog (SDC), eDNA, environmental factors, microbial load, pH, water temperature, Fewer tags Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity: data sets This dataset is comprised of water quality data and benthic macroinvertebrate data collected from basins in Colorado, USA, and Finland. The data includes ancillary water quality characteristics but also a suite of trace metals observed at each site. Also included are modeled outputs that characterize the bioavailability of each trace metal to a biotic ligand. These data were used to explore the importance of metal toxicity and pH as stressors on benthic macroinvertebrates characterized as the number of unique Ephemeroptera + Plecoptera + Trichoptera genera observed at each site. An interpretive summary of the work follows. One of the primary goals of biological assessment of rivers is to identify whether contaminants... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Benthic Macroinvertebrates, Bioavailability, Colorado, Europe, Finland, All tags... Forestry, Metals, Mining, Mixtures, National Water Quality Program, USGS Science Data Catalog (SDC), United States, biota, environment, inlandWaters, pH, Fewer tags Three-dimensional point measurements of basic water-quality parameters in Lake Michigan at 63rd Street Beach near Chicago, Illinois (September 2, 2015) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: 63rd Street Beach, Cook County, Great Lakes, Hyde Park, Illinois, All tags... Jackson Park, Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Coupling chemical weathering with soil production across soil-mantled landscapes Soil-covered upland landscapes constitute a critical part of the habitable world. Our understanding of how they evolve as a function of different climatic, tectonic and geological regimes is important across a wide range of disciplines and depends, in part, on understanding the links between chemical and physical weathering processes. Extensive previous work has shown that soil production rates decrease with increasing soil column thickness, but chemical weathering rates were not measured. Here we examine a granitic, soil-mantled hillslope at Point Reyes, California, where soil production rates were determined using in situ produced cosmogenic nuclides (10Be and 26Al), and we quantify the extent as well as the rates... Categories: Publication; Types: Citation; Tags: Saprolite, erosion, landscape evolution, pH, weatherin Effects of altered groundwater chemistry upon the pH-dependency and magnitude of bacterial attachment during transport within an organically contaminated sandy aquifer The effects of a dilute (ionic strength = 5 × 10−3 M) plume of treated sewage, with elevated levels (3.9 mg/L) of dissolved organic carbon (DOC), upon the pH-dependency and magnitude of bacterial transport through an iron-laden, quartz sand aquifer (Cape Cod, MA) were evaluated using sets of replicate, static minicolumns. Compared with uncontaminated groundwater, the plume chemistry diminished bacterial attachment under mildly acidic (pH 5.0–6.5) in-situ conditions, in spite of the 5-fold increase in ionic strength and substantively enhanced attachment under more alkaline conditions. The effects of the hydrophobic neutral and total fractions of the plume DOC; modest concentrations of fulvic and humic acids (1.5... Categories: Publication; Types: Citation; Tags: Aquifer, Attachment, Bacteria, Calcium, DOC, All tags... Groundwater, NOM, Organic contaminants, Plume, Quartz sand, Static minicolumns, Subsurface, Sulfate, Transport, Treated sewage, pH, Fewer tags Three-dimensional point measurements of basic water-quality parameters in Lake Michigan at 63rd Street Beach near Chicago, Illinois (September 22, 2016) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: 63rd Street Beach, Cook County, Great Lakes, Hyde Park, Illinois, All tags... Jackson Park, Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Discrete water-quality data for the Kansas River and tributaries, July 2012 - September 2016 This U.S. Geological Survey (USGS) Data Release provides discrete water-quality data collected from four sites on the Kansas River and four of its tributaries during July 2012 through September 2016. The water-quality constituents included in this data release are the cyanotoxins microcystin and cylindrospermopsin, the taste-and-odor compounds geosmin and 2-methylisoborneol, major ions, alkalinity, nutrients, suspended sediment, indicator bacteria, and actinomycetes bacteria. Categories: Data; Types: Citation; Tags: 2-methylisoborneol, Actinomycetes bacteria, Alkalinity, Big Blue River nr Manhattan, KS, Chlorophyll, All tags... Cyanobacteria, Cyanotoxins, Cylindrospermopsin, Delaware River at Perry, KS, Discrete data collection, Dissolved Oxygen, Freshwater, Geosmin, Indicator bacteria, Kansas, Kansas River, Kansas River at De Soto, KS, Kansas River at Lawrence, KS, Kansas River at Wamego, KS, Kansas River nr Lake Quivira, KS, Lower Kansas River Basin, MIB, Major ions, Microcystin, Nutrients, Phycocyanin, Republican River at Junction City, KS, River, Specific conductance, Suspended sediment, Taste-and-odor compounds, Turbidity, USGS Science Data Catalog (SDC), USGS station number 06857100, USGS station number 06887000, USGS station number 06887500, USGS station number 06890900, USGS station number 06891080, USGS station number 06891500, USGS station number 06892350, USGS station number 06892518, United States, Wakarusa River nr Lawrence, KS, Water temperature, Water-quality sample, pH, Fewer tags Sediment Oxygen Demand Data for Eastern Kansas Streams, August 2014 through December 2015 This U.S. Geological Survey (USGS) Data Release provides data collected from sediment oxygen demand (SOD) deployments conducted at eight stream sites in eastern Kansas during August 2014 through December 2015. Continuous water-quality monitors were used to measure water temperature, dissolved oxygen, pH, specific conductance, turbidity, and total algae (chlorophyll-a and phycocyanin) at thirty second intervals. All data are reported as raw measured values and are not rounded to USGS significant figures. The dataset includes all water-quality data collected during sediment oxygen demand deployments. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chlorophyll, Dissolved Oxygen, Field Deployment, Grouse Creek, Indian Creek, All tags... Kansas, Kansas River, Little Arkansas River, Marmaton River, Phycocyanin, Pottawatomie Creek, Sediment, Sediment Oxygen Demand, Sediment Oxygen Demand Chamber, Specific Conductance, Turbidity, USGS Science Data Catalog (SDC), USGS Station ID 06887500, USGS Station ID 06892350, USGS Station ID 06914100, USGS Station ID 06917500, USGS Station ID 07144200, USGS Station ID 07146900, USGS Station ID 07148111, USGS Station ID 385608094380300, United States, Walnut River, Water Resources, Water Temperature, pH, Fewer tags Two-dimensional, near-surface point measurements of basic water-quality parameters in Lake Michigan at 63rd Street Beach near Chicago, Illinois (September 22, 2016) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: 63rd Street Beach, Cook County, Great Lakes, Hyde Park, Illinois, All tags... Jackson Park, Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Two-dimensional, near-surface point measurements of basic water-quality parameters in Lake Michigan at Jeorse Park Beach near Gary, Indiana (September 21, 2016) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: Gary, Great Lakes, Indiana, Jeorse Park Beach, Lake County, All tags... Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Ecological effects of particulate matter Atmospheric particulate matter (PM) is a heterogeneous material. Though regulated as un-speciated mass, it exerts most effects on vegetation and ecosystems by virtue of the mass loading of its chemical constituents. As this varies temporally and spatially, prediction of regional impacts remains difficult. Deposition of PM to vegetated surfaces depends on the size distribution of the particles and, to a lesser extent, on the chemistry. However, chemical loading of an ecosystem may be determined by the size distribution as different constituents dominate different size fractions. Coating with dust may cause abrasion and radiative heating, and may reduce the photosynthetically active photon flux reaching the photosynthetic... Categories: Publication; Types: Citation, Journal Citation; Tags: Biodiversity, Deposition mode, Ecosystem response, Environment International, Heavy metals, All tags... Nitrates, PM-coarse, PM-fine, Particulate matter, Rhizosphere, Trace elements, pH, Fewer tags Three-dimensional point measurements of basic water-quality parameters in Lake Michigan at Jeorse Park Beach near Gary, Indiana (September 21, 2016) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: 63rd Street Beach, Gary, Great Lakes, Indiana, Jeorse Park Beach, All tags... Lake County, Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Effects of altered groundwater chemistry upon the pH-dependency and magnitude of bacterial attachment during transport within an organically contaminated sandy aquifer The effects of a dilute (ionic strength = 5 × 10−3 M) plume of treated sewage, with elevated levels (3.9 mg/L) of dissolved organic carbon (DOC), upon the pH-dependency and magnitude of bacterial transport through an iron-laden, quartz sand aquifer (Cape Cod, MA) were evaluated using sets of replicate, static minicolumns. Compared with uncontaminated groundwater, the plume chemistry diminished bacterial attachment under mildly acidic (pH 5.0–6.5) in-situ conditions, in spite of the 5-fold increase in ionic strength and substantively enhanced attachment under more alkaline conditions. The effects of the hydrophobic neutral and total fractions of the plume DOC; modest concentrations of fulvic and humic acids (1.5... Categories: Publication; Types: Citation; Tags: Aquifer, Attachment, Bacteria, Calcium, DOC, All tags... Groundwater, NOM, Organic contaminants, Plume, Quartz sand, Static minicolumns, Subsurface, Sulfate, Transport, Treated sewage, pH, Fewer tags Effects of altered groundwater chemistry upon the pH-dependency and magnitude of bacterial attachment during transport within an organically contaminated sandy aquifer The effects of a dilute (ionic strength = 5 × 10−3 M) plume of treated sewage, with elevated levels (3.9 mg/L) of dissolved organic carbon (DOC), upon the pH-dependency and magnitude of bacterial transport through an iron-laden, quartz sand aquifer (Cape Cod, MA) were evaluated using sets of replicate, static minicolumns. Compared with uncontaminated groundwater, the plume chemistry diminished bacterial attachment under mildly acidic (pH 5.0–6.5) in-situ conditions, in spite of the 5-fold increase in ionic strength and substantively enhanced attachment under more alkaline conditions. The effects of the hydrophobic neutral and total fractions of the plume DOC; modest concentrations of fulvic and humic acids (1.5... Categories: Publication; Types: Citation; Tags: Aquifer, Attachment, Bacteria, Calcium, DOC, All tags... Groundwater, NOM, Organic contaminants, Plume, Quartz sand, Static minicolumns, Subsurface, Sulfate, Transport, Treated sewage, pH, Fewer tags Area- and Depth-Weighted Average of Soil pH from STATSGO2 for the Conterminous United States and District of Columbia This dataset consists of a 100 meter resolution raster of depth and area weighted averages for soil pH for each map unit key (MUKEY) in the State Soil Geographical (STATSGO2) database (NRCS, 2016). This raster was developed from selected criteria of soil parameters from the STATSGO2 database and mapped to a 100 meter resolution rasterized version of MUKEY polygons. Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... STATSGO2, pH, soil, Fewer tags Three-dimensional point measurements of basic water-quality parameters in Lake Michigan at Jeorse Park Beach near Gary, Indiana (September 1, 2015) These data were collected as part of the Great Lakes Restoration Initiative (GLRI) project template 678-1 entitled "Evaluate immediate and long-term BMP effectiveness of GLRI restoration efforts at urban beaches on Southern and Western Lake Michigan". This project is evaluating the effectiveness of projects that are closely associated with restoration of local habitat and contact recreational activities at two GLRI funded sites in Southern Lake Michigan and one non-GLRI site in Western Lake Michigan. Evaluation of GLRI projects will assess whether goals of recipients are on track and identify any developing unforeseen consequences. Including a third, non-GLRI project site in the evaluation allows comparison between... Types: Citation; Tags: 63rd Street Beach, Gary, Great Lakes, Indiana, Jeorse Park Beach, All tags... Lake County, Lake Michigan, United States, beach health, chlorophyll, dissolved oxygen, nearshore, pH, phycocyanin, specific conductance, temperature, turbidity, water quality, Fewer tags Water-quality data from two sites on Milford Lake, Kansas, May 25-26, June 8-10, July 20-21, and September 14-15, 2016 This U.S. Geological Survey (USGS) Data Release provides continuously-measured water-quality data collected from two sites on Milford Lake, Kansas, during May 25-26, June 8-10, July 20-21, and September 14-15, 2016. All data are reported as raw measured values and are not rounded to USGS significant figures. Water-quality monitors were used to measure water temperature, specific conductance, turbidity, pH, chlorophyll, phycocyanin, dissolved oxygen, and fluorescent dissolved organic matter (fDOM) at fifteen-minute intervals. This dataset includes all continuously measured data collected at two short-term, fixed-site locations as part of a study to evaluate the spatial variability of harmful algal blooms in Milford... Categories: Data; Types: Citation; Tags: Chlorophyll, Continuously measured, Dissolved Oxygen, Flourescent Dissolved Organic Matter (fDOM), Harmful algal bloom, All tags... Kansas, Milford Lake, Milford Lake, Kansas Fixed Site 2, Milford Lake, Kansas Fixed Site 3, Monitor, Phycocyanin, Sensor, Spatial data collection, Specific Conductance, Turbidity, USGS Science Data Catalog (SDC), USGS Station ID 390610096555501, USGS Station ID 391102096553502, United States, Water Quality, Water Temperature, pH, Fewer tags Bioavailability of soil inorganic P in the rhizosphere as affected by root-induced chemical changes: a review In most soils, inorganic phosphorus occurs at fairly low concentrations in the soil solution whilst a large proportion of it is more or less strongly held by diverse soil minerals. Phosphate ions can indeed be adsorbed onto positively charged minerals such as Fe and Al oxides. Phosphate (P) ions can also form a range of minerals in combination with metals such as Ca, Fe and Al. These adsorption/desorption and precipitation/dissolution equilibria control the concentration of P in the soil solution and, thereby, both its chemical mobility and bioavailability. Apart from the concentration of P ions, the major factors that determine those equilibria as well as the speciation of soil P are (i) the pH, (ii) the concentrations... Categories: Publication; Types: Citation, Journal Citation; Tags: Plant and Soil, Springer, bioavailability, organic acid, pH, All tags... phosphate, rhizosphere, root, Fewer tags Spatial heterogeneity of the spring flood acid pulse in a boreal stream network. Synopsis: This paper describes the spatial distribution of pH measurements from 60 sites distributed throughout the Kychlan River catchment, a 67km⊃2; boreal watershed in northern Sweden. Water samples were collected during a period of winter baseflow and during a spring flood episode. Chemical analyses included pH, Dissolved Organic Carbon (DOC), major cations (K, Mg, Na, Ca) and total filterable aluminum. Spring flood pH was shown to be highest in larger, lower altitude catchments underlain by fine sorted sediments, and lowest in small, higher altitude catchments underlain by a mixture of peat wetlands and forested till. There was also a trend with distance downstream of higher pH, acid neutralizing capacity and... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANC, Boreal Watershed, DOC, Krychlan River, Natural cover amount, All tags... Sweden, boreal catchments, local, pH, percent native, protected area, snowmelt, spatial heterogeneity, wetlands, Fewer tags