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Using juvenile individuals of 3 species of carp (Family: Cyprinidae), we tested the potential for six amino acids to elicit an extracellular electro-olfactory response within the naris using gelatin-based electrodes. The amino acids L-alanine, L-arginine, L-aspartic acid, L-asparagine, L-glutamine, and L‑glutamic acid were tested on Grass Carp (Ctenopharyngodon idella), Bighead Carp (Hypophthalmichthys nobilis), and Silver Carp (H. molitrix) to provide a comparison among amino acids both within and among species. Each row in the data set represents exposure to a single amino acid. Each individual fish was exposed to up to four amino acids sequentially in a random order, representing a trial; each individual was...
A piscicide delivery method was designed to selectively target black carp Mylopharyngodon piceus, an invasive species in North America which possesses specially adapted pharyngeal teeth for crushing mollusk prey. Bait was prepared by attaching a glass vial containing toxicant (antimycin A) to the exterior of Corbicula fluminea clam valve. The vial was designed to break by the force exerted from the fish’s (550 millimeter total length) pharyngeal teeth when the fish attempted to crush and consume the clam. Suitable vial size was tested for encapsulating piscicide and two attachment materials, aquarium epoxy and ultraviolet light (UV) cured attachment material. Toxic baits consisting of antimycin A piscicide were...
This dataset documents the number of normally developed hatched free embryos, abnormally developed hatched free embryos, and viable unhatched embryos from two laboratory trials (shovelnose sturgeon during April and pallid sturgeon during May 2016) in substrate conditions designed to simulate potential fates within a dynamic riverine environment. Trials were performed with substrate treatments that consisted of clean glass (control), gravel, medium-coarse sand, and fine sand-silt. Medium-coarse sand and fine sand-silt substrates were each tested three ways: unburied, partially buried, and fully buried (1–2 millimeter depth). Pallid sturgeon and shovelnose sturgeon embryos were exposed to trial conditions from the...
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...
This dataset documents the length and developmental stage of pallid sturgeon and shovelnose sturgeon free embryos from the time of hatch through melanin plug expulsion (the approximate onset of exogenous feeding) reared in the laboratory at a constant temperature. Free embryos from 4 pallid sturgeon crosses and 7 shovelnose sturgeon crosses were reared separately in the laboratory at a mean temperature of 17.8 degrees Celsius (range 17.3–18.4 ). Beginning on the day of hatch, a minimum of three to six free embryos from each cross was randomly sampled and preserved in 10% neutral buffered formalin at 2 to 12-hour intervals, depending on age. Free embryos were microscopically examined and assigned a developmental...
An inventory (enumeration and taxonomic identification) of diet items consumed by wild-caught larval pallid sturgeon and larval shovelnose sturgeon, based on the examination of gut contents from fish that were collected in the Upper Missouri River drainage of the U.S.
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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