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Macrhybopsis reproduction and propagule traits were studied in the laboratory using two temperature regimes and three hormone treatments and which methods produced the most spawns. Only sicklefin chub (M. meeki) spawned successfully although sturgeon chub (M. gelida) released unfertilized eggs. All temperature and hormone treatments produced M. meeki spawns, but two treatments had similar success rates at 44 and 43%, consisting of a constant daily temperature with no hormone added, or daily temperature fluctuations with hormone added to the water. Spawns consisted of multiple successful demersal circular swimming spawning embraces interspersed with circular swims without embraces. The most spawns observed for one...
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Cottonwood forests are in decline becasue of losses from land use conversion and reduced regeneration from river regulation. Projecting lon-term implications of current trends and policies, or alterations of these, will help to identify the importance and scale of restoration activities needed to offset losses. This project developed a landscape dynamic model to project future (eig. 25, 50, 100 year) trends in cottonwood forst area and age distribution for four remnant floodplain reches on the Missouri River, based on recent rates (or alternative scenarios) of land use change, cottonwood recruitment, and succession. For two reaches, these changes are used to project the effects onabundances of selected songbird...
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In FY12, hydrogeomorphic methodology was applied along 670 miles of the Missouri River from Decatur, Nebraska to St. Louis, Missouri. In FY15, additional resources extended the HGM up river to Gavin’s Point Dam, West Yankton, South Dakota (approximate river mile 811), the location of the most downstream mainstem dam; thus encompassing the entire free flowing reach of the Missouri River and increasing the study area by approximately 800,000 acres. Using this method, engineers and ecologists incorporated state-of-the-art scientific knowledge of ecological processes and key fish and wildlife species to identify options by which to emulate natural hydrologic and vegetation/ animal community dynamics. Results of this...
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This child data release includes RGB (red-green-blue) videos acquired from an Unmanned Aircraft System (UAS) during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended sediment on reflectance....
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These data are high-resolution bathymetry (riverbed elevation) and depth-averaged velocities in ASCII format, generated from hydrographic and velocimetric surveys near highway bridge structures over the Missouri River in Kansas City, Missouri, in August 2019, as well as special surveys at two of the sites in August and October 2020 before and after installation of scour countermeasures. Hydrographic data were collected using a high-resolution multibeam echosounder mapping system (MBMS), which consists of a multibeam echosounder (MBES) and an inertial navigation system (INS) mounted on a marine survey vessel. Data were collected as the vessel traversed the river along planned survey lines distributed throughout...
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Grass carp, bighead carp, and silver carp spawn in flowing water. Their eggs,and then larvae, develop while drifting. Hydraulic conditions control spawning locations, egg survival, and the downstream distance traveled before the hatched larvae can swim for low velocity nursery habitats. Existing egg drift models simulate the fluvial transport of carp eggs but have limitations in capturing the effect of localized turbulence on egg transport due to inadequate dimensions of hydrodynamics and/or empirical parameterization of river dispersion. We present a three-dimensional Lagrangian particle tracking model that uses fully resolved river hydrodynamics and a continuous random walk algorithm driven by local turbulent...
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This child data release includes field spectra and in situ measurements of Rhodamine WT dye concentration acquired during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended sediment on reflectance....
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This data release includes field spectra, UAS-based RGB videos, and digital orthophotography acquired from a manned fixed-wing aircraft, as well as in situ measurements of turbidity and Rhodamine WT dye concentration acquired during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result,...
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This child data release includes fluorometer measurements of Rhodamine WT dye concentration and turbidity acquired during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended sediment on reflectance....
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The goal of this project was to develop a landscape dynamics model to project future trends in forest area, age class distribution, and forest type (cottonwood vs. non-cottonwood) for four remnant floodplain segments on the Missouri River and, for two river segments, project effects of forest changes on abundances of forest bird species. These four river segments have not been channelized or inundated by reservoirs and thus still retain some of the natural abiotic and biotic processes of the Missouri River as it existed before human alteration. Fluvial geomorphic processes on all four, however, were significantly altered by the construction of six dams on the main stem of the river in the mid twentieth century....
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This child data release includes fluorometer measurements of Rhodamine WT dye concentration and turbidity acquired during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended sediment on reflectance....
This data release includes estimates of annual and monthly mean concentrations and fluxes for nitrate plus nitrite, orthophosphate and suspended sediment for nine sites in the Mississippi River Basin (MRB) produced using the Weighted Regressions on Time, Discharge, and Season (WRTDS) model (Hirsch and De Cicco, 2015). It also includes a model archive (R scripts and readMe file) used to retrieve and format the model input data and run the model. Input data, including discrete concentrations and daily mean streamflow, were retrieved from the National Water Quality Network (https://doi.org/10.5066/P9AEWTB9). Annual and monthly estimates range from water year 1975 through water year 2019 (i.e. October 1, 1974 through...
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This child data release provides the information needed to download from the USGS EarthExplorer portal digital orthophotos acquired during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended...


    map background search result map search result map Hydrogeomorphic Evaluation of Restoration Options for Lower Missouri River Reproductive strategy, spawning induction, spawning temperatures and early life history of captive sicklefin chub Macrhybopsis meeki-Data Projecting Long-Term Landscape Change Along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Projecting Long-term Landscape Change along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Report Bathymetry and Velocity Data from Surveys at Highway Bridges crossing the Missouri River in Kansas City, Missouri, in August 2019, August 2020, and October 2020 Data to Incorporate Water Quality Analysis into Navigation Assessments as Demonstrated in the Mississippi River Basin Remotely sensed data and field measurements for mapping visible dye concentrations during a tracer experiment on the Missouri River near Columbia, MO, May 5, 2021 Field spectra from a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Videos acquired from an unmanned aircraft system (UAS) acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 In situ measurements of Rhodamine WT dye concentration and turbidity made along transects by a moving boat during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Digital orthophotography acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 In situ measurements of Rhodamine WT dye concentration and turbidity made at several fixed locations during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Data supporting a new three-dimensional Lagrangian particle tracking model for predicting transport of carp eggs in turbulent rivers Data supporting a new three-dimensional Lagrangian particle tracking model for predicting transport of carp eggs in turbulent rivers In situ measurements of Rhodamine WT dye concentration and turbidity made along transects by a moving boat during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 In situ measurements of Rhodamine WT dye concentration and turbidity made at several fixed locations during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Field spectra from a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Digital orthophotography acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Videos acquired from an unmanned aircraft system (UAS) acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Remotely sensed data and field measurements for mapping visible dye concentrations during a tracer experiment on the Missouri River near Columbia, MO, May 5, 2021 Hydrogeomorphic Evaluation of Restoration Options for Lower Missouri River Data to Incorporate Water Quality Analysis into Navigation Assessments as Demonstrated in the Mississippi River Basin Projecting Long-Term Landscape Change Along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Projecting Long-term Landscape Change along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Report