Erin A Stelzer

Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through October 2018

This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites throughout the United States, from June through October 2018. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyanobacterial toxin genetics as part of a National Water-Quality Assessment Project pilot study to describe cyanobacteria and cyanotoxin occurrence in the Nation's large rivers.

Categories: Data; Tags: Anatoxin, Aquatic Biology, California, Chattahoochee River near Whitesburg, GA, Chlorophyll-a, All tags... Connecticut, Connecticut River at Thompsonville, CT, Contaminants, HABS, Cyanotoxin genetics, Cyanotoxins, Cylindrospermopsin, Delaware River at Trenton, NJ, Discretely measured, Dolichospermum (formerly Anabaena), Ecology, Environmental Health, Enzyme-linked immunosorbent assay (ELISA), Genetics, Georgia, Kansas, Kansas River at De Soto, KS, Limnology, Maryland, Microcystin, Microcystis, Minnesota, Mississippi River at Hastings, MN, Missouri, Missouri River at Hermann, MO, New Jersey, Ohio, Ohio River at Cannelton Dam at Cannelton, IN, Oregon, Pheophytin-a, Phytoplankton community composition, Planktothrix, Quantitative polymerase chain reaction (qPCR), Sacramento River at Freeport, CA, Saxitoxin, Susquehanna River at Conowingo, MD, Texas, Trinity River below Dallas, TX, USGS Science Data Catalog (SDC), USGS Station ID 01184000, USGS Station ID 01463500, USGS Station ID 01578310, USGS Station ID 02338000, USGS Station ID 03303280, USGS Station ID 05331580, USGS Station ID 06892350, USGS Station ID 06934500, USGS Station ID 08057410, USGS Station ID 11447650, USGS Station ID 14211720, United States, Water, Water Quality, Water Quality, Water quality, Willamette River at Portland, OR, anaC gene, cyrA gene, mcyE gene, sxtA gene, Fewer tags

Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at twelve large river sites throughout the United States, June through October 2019

This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from twelve large river sites throughout the United States, from June through October 2019. Discrete water-quality samples were analyzed for cyanotoxins (anatoxin, cylindrospermopsin, microcystin, and saxitoxin), chlorophyll-a, and cyanobacterial toxin genetics as part of a National Water-Quality Assessment Project pilot study to describe cyanobacteria and cyanotoxin occurrence in the Nation's large rivers. The data release contains the genetic data (in .csv and .xlsx formats), qPCR standard curve information (in .csv and .xlsx formats), and a readme...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Anatoxin, California, Chattahoochee River near Whitesburg, GA, Chlorophyll-a, Connecticut, All tags... Connecticut River at Thompsonville, CT, Contaminants, HABS, Cyanotoxin genetics, Cyanotoxins, Cylindrospermopsin, Delaware River at Trenton, NJ, Discretely measured, Dolichospermum (formerly Anabaena), Enzyme-linked immunosorbent assay (ELISA), Genetics, Georgia, Hudson River near Poughkeepsie, NY, Kansas, Kansas River at De Soto, KS, Maryland, Microcystin, Microcystis, Minnesota, Mississippi River at Hastings, MN, Missouri, Missouri River at Hermann, MO, New Jersey, New York, Ohio, Ohio River at Cannelton Dam at Cannelton, IN, Oregon, Pheophytin-a, Phytoplankton community composition, Planktothrix, Quantitative polymerase chain reaction (qPCR), Sacramento River at Freeport, CA, Saxitoxin, Susquehanna River at Conowingo, MD, Texas, Trinity River below Dallas, TX, USGS Science Data Catalog (SDC), USGS Station ID 01184000, USGS Station ID 01372043, USGS Station ID 01463500, USGS Station ID 01578310, USGS Station ID 02338000, USGS Station ID 03303280, USGS Station ID 05331580, USGS Station ID 06892350, USGS Station ID 06934500, USGS Station ID 08057410, USGS Station ID 11447650, USGS Station ID 14211720, United States, Water, Water Quality, Water quality, Willamette River at Portland, OR, anaC gene, cyrA gene, mcyE gene, sxtA gene, Fewer tags

Phytoplankton data for samples collected at twelve large river sites throughout the United States, June through October 2019

This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from twelve large river sites throughout the United States, from June through October 2019. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality assurance/quality control samples collected as part of a National Water Quality Assessment Project pilot study to describe cyanobacteria and cyanotoxin occurrence in the Nation's large rivers. Phytoplankton were identified to the lowest possible taxonomic level with both abundance (reported as both natural units and cells) and biovolume reported.

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Algae, Aquatic Biology, California, Chattahoochee River near Whitesburg, GA, Connecticut, All tags... Connecticut River at Thompsonville, CT, Contaminants, Cyanobacteria, Delaware River at Trenton, NJ, Division, Freshwater, Genus, Georgia, Harmful Algal Blooms (HABs), Harmful algal bloom, Hudson River near Poughkeepsie, NY, Indiana, Kansas, Kansas River at De Soto, KS, Limnology, Maryland, Minnesota, Mississippi River at Hastings, MN, Missouri, Missouri River at Hermann, MO, New Jersey, New York, Ohio River at Cannelton Dam at Cannelton, IN, Oregon, Phytoplankton, River, Sacramento River at Freeport, CA, Species, Susquehanna River at Conowingo, MD, Taxa, Taxonomy, Texas, Trinity River below Dallas, TX, USGS Science Data Catalog (SDC), USGS Station ID 01184000, USGS Station ID 01372043, USGS Station ID 01463500, USGS Station ID 01578310, USGS Station ID 02338000, USGS Station ID 03303280, USGS Station ID 05331580, USGS Station ID 06892350, USGS Station ID 06934500, USGS Station ID 08057410, USGS Station ID 11447650, USGS Station ID 14211720, United States, Water Quality, Water Quality, Willamette River at Portland, OR, water, Fewer tags

Response of natural phytoplankton communities from Green Bay (Lake Michigan) and Maumee Bay (Lake Erie) to laboratory manipulations of nutrient and trace metal availability during late summer 2018

Microcystins (MC) are a class of cyanotoxins produced by many cyanobacteria taxa. Although toxic to metazoans, the evolution of microcystin pre-dates the appearance of metazoans, and so MC did not originate as a toxin to potential metazoan grazers. One hypothesized functional role of microcystin is the management and acquisition of metals, several of which form complexes with MC intracellularly. Metals are often used to build enzymes within the cell that allow cyanobacteria to use non-preferred nitrogen (N) and phosphorus (P) sources, such as nitrate, urea and organic P. If trace metals are in low supply, primary producers may become limited because of their inability to access these non-preferred N and P forms....

Categories: Data; Tags: Aquatic Biology, Great Lakes, Green Bay, Northwestern Lake Michigan, USGS Science Data Catalog (SDC), All tags... Western Lake Erie, cyanobacteria ["blue-green algae"], environment, Fewer tags

Laboratory quality-control data associated with samples analyzed for microbiological constituents at the USGS Ohio Water Microbiology Laboratory

This dataset contains data tables of laboratory quality-control data associated with environmental samples analyzed for microbiological constituents at the Ohio Water Microbiology Laboratory of the U.S. Geological Survey (USGS). The environmental samples were collected across the United States by USGS National Projects and projects in Water Science Centers. These quality-control data can be used to assess the quality of microbiological data for the associated environmental samples.

Tags: Environmental Health, Hydrology, USGS Science Data Catalog (SDC), United States of America, Water Quality, All tags... bacteria, laboratory methods, microbiology, quality control, virology, Fewer tags