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Cyanobacteria, Cyanotoxin, Cyanotoxin Synthetase Gene, and other Water-Quality Data Collected from Five River Basins in the North Atlantic Appalachian Region, August through September, 2020 This data release contains cyanotoxin, chlorophyll-a, and pheophytin-a concentration, cyanobacterial genetics, phytoplankton community composition, and multiparameter sonde data collected from 20 sites in five northeastern United States river basins (Penobscot (ME), Santuit (MA), York (VA-WV), Salem (NJ), and Peconic (NY)). Solid Phase Adsorption Toxin Tracking (SPATT) passive samplers were deployed at all sites between August 31 and September 2, 2020, and retrieved after 7 days. Discrete water samples were collected when SPATTs were deployed, and at 2 sites (USGS station IDs 01670257, 0167014792), samples were also collected when the SPATTs were recovered. Sonde data were collected when deploying and retrieving... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anatoxin-a, Aquatic Community Health, Chlorophyll-a, Contaminants, HABS, Cyanobacteria, All tags... Cylindrospermopsin, Dolby Pond, Enzyme-linked immunosorbent assay (ELISA), HAB, Harmful Algal Bloom, Lake Anna, Maine, Massachusetts, Mattaponi River, Microcystin, New Jersey, New York, North Anna River, Pamunkey River, Peconic River, Peconic River Basin, Penobscot River, Penobscot River Basin, Pheophytin-a, Quantitative polymerase chain reaction (qPCR), SPATT, Salem River, Salem River Basin, Santuit Pond, Santuit River, Santuit River Basin, Saxitoxin, Shinnecock Canal, Solid Phase Adsorption Toxin Tracking, USGS Science Data Catalog (SDC), Virginia, Water, Water Quality, Water Quality, Water quality, York River, York River Basin, anaC gene, biota, cyanotoxin genetics, cyanotoxins, cyrA gene, environment, inlandWaters, mcyE gene, phytoplankton community composition, sxtA gene, Fewer tags Effects of flow alteration on ecological health of streams across the Atlantic Highlands Ecoregion Problem: The Clean Water Act (PL 92-500) requires that the health of the Nation’s rivers and streams be assessed on a regular basis, and in the Northeast such assessments often use information from aquatic biological communities that live in the stream. Biomonitoring programs implemented by individual states evaluate biological data to assess stream health on the premise that certain sensitive species that are native to the region cannot survive when water quality is poor. The aquatic community data are typically condensed into a set of biological condition metrics that are scaled numerically to convey the relative degree of stream impairment (e.g., excellent, good, fair, poor). However, biological condition... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Highlands Ecoregion,NY,VT,NH,ME,MA,CT,NJ,PA, Ecological Assessment of Human and Natural Impacts, Ecological Assessment of Human and Natural Impacts, Ecological Assessment of Human and Natural Impacts, Ecosystem Health, All tags... Ecosystem Health, National Water Quality Assessment Program, USGS New York Water Science Center, WSC, Water Quality, Water Quality, Water quality, biomonitoring, stream-flow, temperature, Fewer tags