Filters: Tags: Downstream dispersal (X)
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The data set contains sampling data, catch data, and biological data associated with a broad-scale experiment to examine free embryo dispersal and larval settlement of endangered pallid sturgeon (Scaphirhynchus albus) in the Missouri River of eastern Montana and western North Dakota. On 20190701, two age groups of pallid sturgeon including 771,707 1-day post-hatch (dph) free embryos and 200,786 5-dph free embryos were released in the Missouri River where dispersal in the water column was assessed through 150 miles. Following dispersal, beam trawl sampling of benthic habitats was conducted to verify settlement and quantify the spatial extent of settlement. Trawling was conducted for nine consecutive weeks from 20190716...
The data set contains sampling data, catch data, and biological data associated with a broad-scale experiment to examine free embryo dispersal and larval settlement of endangered pallid sturgeon (Scaphirhynchus albus) in the Missouri River of eastern Montana and western North Dakota. On 20190701, two age groups of pallid sturgeon including 771,707 1-day post-hatch (dph) free embryos and 200,786 5-dph free embryos were released in the Missouri River where dispersal in the water column was assessed through 150 miles. Following dispersal, beam trawl sampling of benthic habitats was conducted to verify settlement and quantify the spatial extent of settlement. Trawling was conducted for nine consecutive weeks from 20190716...
The data set contains sampling and catch data associated with a broad-scale experiment to examine dispersal of endangered pallid sturgeon (Scaphirhynchus albus) free embryos in the Missouri River of eastern Montana and western North Dakota. On 20190701, two age groups of pallid sturgeon including 771,707 1-day post-hatch (dph) free embryos and 200,786 5-dph free embryos were released and recaptured through 20190708 from six sampling sites in a 150-mile reach of the Missouri River. The free embryos were sampled using multiple boats and crews at the sites, and sampling for the free embryos was conducted at the river bed (bottom samples), in the middle of the water column (mid-water samples), and at the river surface...
In 2019, an experimental release of nearly 1.0 million free embryos of federally endangered pallid sturgeon (Scaphirhynchus albus) was conducted in the Missouri River of eastern Montana and western North Dakota. Dispersal of the free embryos and survival of the benthic larvae was assessed from 20190701 to 20190909 through 150 miles of the river. The data sets contain mean daily discharge and hourly water temperature data for the Missouri River, and mean daily discharge data for the Yellowstone River. Dates of the data extend from 20190701 to 20190909. Discharge data for the Missouri River were obtained from USGS gage 06177000 near Wolf Point, Montana. Discharge data for the Yellowstone River were obtained from USGS...
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