Assessment of Field and Laboratory Methods for the Detection and Analyses of Cyanobacteria and Cyanotoxins in Texas Reservoirs

In cooperation with the Texas Commission on Environmental Quality (TCEQ), the U.S. Geological Survey (USGS) utilized various field and laboratory methods to determine the presence and concentration of cyanobacteria, cyanotoxins, and taste-and-odor compounds in Texas water bodies. This data release documents the results from water-quality samples collected from 41 water bodies in Texas during 2016–19. Both qualitative and quantitative field and laboratory methods were performed. Analyses included phytoplankton taxonomy, measurements of phytoplankton biomass, and concentrations of cyanotoxins, taste-and-odor compounds, and photosynthetic pigments. Water-quality samples were also collected to provide supporting data...

Tags: Benbrook Lake, Braunig Lake, Caddo Lake, Caruth Lake, Cedar Creek Reservoir, All tags... E V Spence Reservoir, Fairfield Lake, Fort Phantom Hill Lake, Grapevine Lake, Jim Chapman Lake, Lake Arrowhead, Lake Buchanan, Lake Cisco, Lake Fork Reservoir, Lake J B Thomas, Lake Kemp, Lake Kiowa, Lake Lewisville, Lake Meredith, Lake Murvaul, Lake O' the Pines, Lake Palestine, Lake Palo Pinto, Lake Tawakoni, Lake Texoma, Lake Whitney, Lavon Lake, Millers Creek Reservoir, NRCS Upper Bosque River, O H Ivie Reservoir, Pat Mayse Lake, Phelps Lake, Ray Hubbard Lake, Ray Roberts Lake, Richland Chambers Reservoir, Sheldon Reservoir, Somerville Lake, Stillhouse Hollow Lake, Texas, Twin Buttes Reservoir, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wright Patman Lake, algae, blue-green algae, cyanobacteria, phytoplankton, water quality, Fewer tags

Surface-water characteristics and phytoplankton taxonomy in selected north Texas reservoirs using biological, hyperspectral, and water-quality methods, 2019-2020

A study to develop an earth observation monitoring system to detect harmful algal bloom (HABs) presence within selected north Texas reservoirs using satellite imagery was conducted by the U.S. Geological Survey (USGS). This data release provides the data collected for this study including site locations, water-quality, phytoplankton, and hyperspectral water surface reflectance data. Data were collected between September of 2019 and December of 2020 at 39 sites distributed across 16 reservoirs and 1 stream. The stream site was sampled in response to an algal bloom in August of 2019 in Austin Tex., and is included herein but the reservoir sites are the focus of this data release. The datasets include all routine and...

Categories: Data; Tags: Aquatic Biology, Ecology, Environmental Health, Geography, Grapevine Lake, All tags... Hubbard Creek Reservoir, Hydrology, Jim Chapman Lake, Lady Bird Lake, Lake Fork Reservoir, Lake J B Thomas, Lake Kemp, Lake Lewisville, Lake Palestine, Lake Ray Hubbard, Lake Tawakoni, Lake Texoma, Landsat 8, Lavon Lake, Limnology, Navarro Mills Lake, Ray Roberts Lake, Remote Sensing, USGS Science Data Catalog (SDC), Water Quality, Water Resources, algal concentration, biota, blue-green algae, cyanobacteria, harmful algal bloom, hyperspectral imagery, remote sensing, sentinel 2A, sentinel 2B, surface water reflectance, water quality, Fewer tags

Biological and physical data for zebra mussel (Dreissena polymorpha) veligers collected from a coupled lake-stream ecosystem in north Texas, 2012-2014

Dispersal, establishment, and spread of aquatic invasive species such as the zebra mussel (Dreissena polymorpha) can be influenced by riverine velocities and volumetric flows in invaded lake-stream ecosystems. Zebra mussels, which have a planktonic larval form (veliger), disperse rapidly downstream from a source population. Concentrations, dispersal, and body conditions of zebra mussel veligers were studied under different volumetric flow, or discharge, conditions in a coupled lake-stream ecosystem in northern Texas, USA. Veliger densities in lotic environments were strongly related to population dynamics in upstream lentic source populations. A strong exponential decrease in veliger density was observed through...

Categories: Data; Tags: Aquatic Biology, Aquatic ecosystem, Dallas, Dispersal, Ecology, All tags... Elm Fork Trinity River, Fort Worth, Geographical distribution, Lake Lewisville, Lake Texoma, Larvae, Oklahoma, Planktonic, Population dynamics, Ray Roberts Lake, Red River, River discharge, Texas, Trinity River, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, Fewer tags