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An unmanned aerial system (UAS) was used to acquire red/green/blue (RGB) and hyperspectral image data from the American River in California November 5-7, 2018, to support research on remote sensing of rivers, specifically mapping chinook salmon spawning locations (redds) as part of an overall salmon habitat assessment program. The RGB images were acquired uisng a DJI MAtrice 210 equipped with a Zenmuse 4S optical camera. Imagery was collected along several parallel flight lines to ensure full coverage of the study reach. Raw Zenmuse images were georeferenced using real-time kinematic (RTK) global positioning system (GPS) and inertial motion unit (IMU) data recorded onboard the UAS and individual flight strips were...
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This child data release includes field spectra obtained as part of a study focused on mapping chinook salmon spawning locations along the American River near Sacramento, California, via remote sensing; the data were collected November 5-7, 2018. The purpose of this study was to develop and test a spectrally based technique for identifying salmon spawning locations, known as redds, from various types of remotely sensed data. Traditionally, redds have been mapped by eye while walking the bank or from a boat, or by an observer in an aircraft or an interpreter visually examining aerial images. The goal of this proof-of-concept investigation was to assess the potential for more efficient, objective, and automated...
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To support an investigation of the effectiveness of a large-scale river restoration project, several types of field data were collected from two gravel-bed reaches of the regulated lower Merced River in California's Central Valley, primarily in the fall of 2016. These data sets were intended to characterize salmon spawning habitat and identify factors influencing spawning site selection. This parent data release includes links to child pages for the following data sets: 1) Bulk samples of streambed sediment used to characterize the subsurface grain size distribution. 2) Pebble counts used to characterize the sediment grain size distribution of the bed surface. 3) Force gage measurements used to parameterize a...
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Diploid and triploid Grass Carp (Ctenopharyngodon Idella) tagged with acoustic transmitters were observed in Truman Reservoir, Missouri from January 2017 to October 2019 to determine longitudinal movements potentially associated with spawning. Passive acoustic receivers were deployed throughout the reservoir and its tributaries to monitor fish movements as they traversed up and downstream. This dataset consists of the detections made by passive receivers and those made by manual tracking.
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This dataset describes the diameter, shape, settling velocity, and specific gravity of eggs from 9 female pallid sturgeon and 14 female shovelnose sturgeon as determined in laboratory studies. Pallid sturgeon and shovelnose sturgeon are believed to broadcast demersal eggs in the current, near the river bed over coarse substrate. It is hypothesized that eggs settle immediately following fertilization, but field conditions preclude direct observation. The dispersal of sturgeon eggs is affected by physical properties of the eggs and hydraulic conditions at the spawning location.
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Bulk samples of streambed sediment were collected from two reaches of the lower Merced River in California's Central Valley to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. The bulk samples were acquired during the summer of 2016 at the Merced River Ranch and Robinson Reach field sites using a McNeil sampler [McNeil and Ahnell, 1964]. Before collecting each sample, the surface layer was removed to avoid including surface grains as part of the sample. Surface material was scraped off to a depth...
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To investigate the contemporary distribution of lake whitefish spawning and over-winter egg survival within western Lake Erie, potential spawning locations were sampled for eggs from 2016 to 2018. Eggs were collected using a 39-kg iron sled attached to a diaphragm pump towed for 2 - 5 minutes. The data describe the number, date of collection, and exact collection location of Lake Whitefish fish eggs collected in the western basin of Lake Erie from 2016-2018.
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These data include a field study of the sediment hardness and fish egg density (walleye [Sander vitreus] and lake whitefish [Coregonus clupeaformis]) after sediment cleaning treatments (propulsion sled or hydro-jet sled) conducted at two reef locations in Saginaw Bay, Lake Huron, during 2018 and 2019. The data includes the year, species, reef, treatment type (jet, fan, control), number of eggs, and egg density in the treatment area. Relative sediment hardness for the treatment areas assessed before and after sediment cleaning experiments is provided. Additionally, walleye eggs were collected from Brookville Reservoir, Indiana, and incubated at the aquaculture research laboratory at Purdue University (West Lafayette,...
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Pebble counts were used to characterize the sediment grain size distribution of the bed surface for two reaches of the lower Merced River in California's Central Valley to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. The pebble counts were performed at the Merced River Ranch and Robinson Reach field sites using the method of Wolman [1954]. Grain diameters (n>100) were measured using a gravelometer by recording the largest opening on the gravelometer that an individual particle did NOT pass...
This dataset contains a combination of physiological and behavioral approaches for characterizing the response of bighead and silver carp to potentially attractive chemicals associated with sex pheromones identified in common carp. The dataset contains eight tables: 1) EOG responses from untreated and masculinized silver carp to prostaglandins, 2) mixture discrimination indices of the prostaglandins tested with the EOG, 3) relative distribution (percentage) of initial behavioral/attractiveness tests of individual PGF’s to silver carp, 4) release rates of prostaglandin mixtures from PGF2α-implanted bigheaded carps, 5) relative distribution (percentage) of masculinized silver carp to PGF2α-implanted carp odors, 6)...
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Field measurements of saturated hydraulic conductivity were used to characterize the streambed permeability for two reaches of the lower Merced River in California's Central Valley to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. Saturated hydraulic conductivity, denoted by K, was measured with a backpack permeameter and modified Mark VI groundwater standpipe using the constant head method of Terhune [1958]. For each reach, permeameter measurements were collected at ten sites spanning a single...
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Field measurements of water depth were acquired from a reach of the upper American River in California, November 5-7, 2018, to support research on mapping chinook salmon spawning locations (redds) via remote sensing. The depth measurements included in this data release were obtained by wading the shallow channel margins with RTK GPS receivers and measuring water surface elevations along the water's edge and bed elevations within the channel; depths were calculated by subtracting bed elevations from the nearest water surface elevation. For the deeper areas representing most of the channel, depths were recorded along a series of cross-sections by a SonTek RiverSurveyor S5 acoustic Doppler current profiler (ADCP) deployed...
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This data release includes images and field measurements used to map chinook salmon spawning locations along the American River near Sacramento, California, via remote sensing; the data were collected November 5-7, 2018. The purpose of this study was to develop and test a spectrally based technique for identifying salmon spawning locations, known as redds, from various types of remotely sensed data. Traditionally, redds have been mapped by eye while walking the bank or from a boat, or by an observer in an aircraft or an interpreter visually examining aerial images. The goal of this proof-of-concept investigation was to assess the potential for more efficient, objective, and automated redd mapping from conventional...
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Assessment of egg deposition is widely used to provide an index of spawning efforts for lithophilic-spawning fishes. However, little is known about the collection techniques efficacy and bias when collecting fish eggs. We conducted a literature review to assess egg collection methods and evaluate egg retention and capture on egg mats. The literature review provided a summary of different gear types used to collect fish eggs, possible bias from the gears, and egg 'abundance' reporting strategies.
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This data release includes images and field measurements used to map chinook salmon spawning locations along the American River near Sacramento, California, via remote sensing; the data were collected November 5-7, 2018. The purpose of this study was to develop and test a spectrally based technique for identifying salmon spawning locations, known as redds, from various types of remotely sensed data. Traditionally, redds have been mapped by eye while walking the bank or from a boat, or by an observer in an aircraft or an interpreter visually examining aerial images. The goal of this proof-of-concept investigation was to assess the potential for more efficient, objective, and automated redd mapping from conventional...
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Force gage measurements were used to parameterize a force balance model for the initiation of sediment motion and thus characterize bed mobility for two reaches of the lower Merced River in California's Central Valley. These data were acquired to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. The force gage measurements were made at the Merced River Ranch and Robinson Reach field sites and involved using a spring-resisting force gage to push a given submerged particle in a bed-parallel downstream...
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Salmon spawning locations (redds) were mapped to characterize habitat use along two reaches of the lower Merced River in California's Central Valley and thus support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. Salmon redds were mapped during the fall of 2016 at the Merced River Ranch and Robinson Reach field sites using real-time kinematic (RTK) GPS. The location of the center of each redd was surveyed in the UTM Zone 10/NAD83 coordinate system, with easting and northing coordinates recorded in units...
    map background search result map search result map Lake Whitefish eggs collected in the western basin of Lake Erie, 2016-2018 Field measurements for characterizing salmon spawning habitat in two restored reaches of the lower Merced River, California Bulk samples of streambed sediment from two restored reaches of the lower Merced River, California Pebble count-based bed surface sediment grain size distributions from two restored reaches of the lower Merced River, California Force gage measurements to characterize bed mobility in two restored reaches of the lower Merced River, California Measurements of streambed permeability from two restored reaches of the lower Merced River, California Salmon spawning locations (redds) in two restored reaches of the lower Merced River, California Physical characteristics of pallid sturgeon and shovelnose sturgeon eggs Image data and field measurements used to map salmon spawning locations via remote sensing, American River, California, November 5-7, 2018 Field spectra from salmon spawning locations on the American River, California, November 5-7, 2018 Hyperspectral and RGB image data used to map salmon spawning locations on the American River, California, November 5-7, 2018 Salmon spawning locations (redds) mapped in the field along the American River, California, November 5-7, 2018 Field measurements of water depth from the American River, California, November 5-7, 2018 Substrate hardness and walleye (Sander vitreus) and lake whitefish (Coregonus clupeaformis) egg presence in Saginaw Bay, Lake Huron, before and after substrate cleaning experiments and walleye hatching success experiments, 2018-2019 Grass Carp detections via stationary receivers and manual tracking on Truman Reservoir, MO, January 2017 to October 2019 Literature Review of Lithophilic-Spawning Fishes Egg Collection Methods Field spectra from salmon spawning locations on the American River, California, November 5-7, 2018 Hyperspectral and RGB image data used to map salmon spawning locations on the American River, California, November 5-7, 2018 Physical characteristics of pallid sturgeon and shovelnose sturgeon eggs Salmon spawning locations (redds) mapped in the field along the American River, California, November 5-7, 2018 Field measurements of water depth from the American River, California, November 5-7, 2018 Image data and field measurements used to map salmon spawning locations via remote sensing, American River, California, November 5-7, 2018 Pebble count-based bed surface sediment grain size distributions from two restored reaches of the lower Merced River, California Bulk samples of streambed sediment from two restored reaches of the lower Merced River, California Field measurements for characterizing salmon spawning habitat in two restored reaches of the lower Merced River, California Measurements of streambed permeability from two restored reaches of the lower Merced River, California Salmon spawning locations (redds) in two restored reaches of the lower Merced River, California Force gage measurements to characterize bed mobility in two restored reaches of the lower Merced River, California Lake Whitefish eggs collected in the western basin of Lake Erie, 2016-2018 Substrate hardness and walleye (Sander vitreus) and lake whitefish (Coregonus clupeaformis) egg presence in Saginaw Bay, Lake Huron, before and after substrate cleaning experiments and walleye hatching success experiments, 2018-2019 Literature Review of Lithophilic-Spawning Fishes Egg Collection Methods