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Columbia Environmental Research Center images.
A USGS Comprehensive Sturgeon Research Project telemetry crew tracks radio telemetered pallid sturgeon in Montana.
A USGS Comprehensive Sturgeon Research Project telemetry crew tracks radio telemetered pallid sturgeon in Montana.
A USGS Comprehensive Sturgeon Research Project telemetry crew tracks radio telemetered pallid sturgeon in Montana.
A USGS Comprehensive Sturgeon Research Project telemetry crew tracks radio telemetered pallid sturgeon in Montana.
A sidescan sonar image sample shows highlighted areas of suspected gravel substrate.
A sidescan sonar image sample shows highlighted areas of suspected gravel substrate.
Substrate and pond configurations are shown before being used in a study on sturgeon reproduction at CERC.
Substrate and pond configurations are shown before being used in a study on sturgeon reproduction at CERC.
Free embryo sample from Missouri River.
Free embryo sample from Missouri River.
Collected eggs and extracted milt mixed with water and stirred with a feather to stimulate fertilization.
Collected eggs and extracted milt mixed with water and stirred with a feather to stimulate fertilization.
Milt being collected from a male Pallid Sturgeon.
Milt being collected from a male Pallid Sturgeon.
Researchers at the Columbia Environmental Research Center will use experimental streams with sand, gravel or cobble bottoms to help to determine the influence of the different substrates on hatch and initiation of dispersal of pallid sturgeon free-embryos.
Researchers at the Columbia Environmental Research Center will use experimental streams with sand, gravel or cobble bottoms to help to determine the influence of the different substrates on hatch and initiation of dispersal of pallid sturgeon free-embryos.
Weekly sturgeon free embryo efforts were initiated on April 15, 2014 near the confluence of the Platte and Missouri Rivers. Pictured is biologist Jeff Beasley preparing to deploy a sampling net into the Missouri River.
Weekly sturgeon free embryo efforts were initiated on April 15, 2014 near the confluence of the Platte and Missouri Rivers. Pictured is biologist Jeff Beasley preparing to deploy a sampling net into the Missouri River.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Biologists work together to conduct reproductive assessments on pallid sturgeon held in study ponds.
Missouri River ice flows past a boat ramp located near Hartsburg, MO.
Missouri River ice flows past a boat ramp located near Hartsburg, MO.
Hermann, MO boat ramp--December 2013.
Hermann, MO boat ramp--December 2013.
Recent advancements in assessments using early life stages of test organisms (like the larval mussels shown) provide robust alternatives to full life-cycle chronic ecotoxicity tests. For more information on aquatic toxicology test organisms refer to the U.S.
Recent advancements in assessments using early life stages of test organisms (like the larval mussels shown) provide robust alternatives to full life-cycle chronic ecotoxicity tests. For more information on aquatic toxicology test organisms refer to the U.S.
Biologist Sabrina Davenport with a reproductive male pallid sturgeon.
Biologist Sabrina Davenport with a reproductive male pallid sturgeon.
The Cranberry Bend Chute on the Missouri River.
The Cranberry Bend Chute on the Missouri River.
CSRP Biologist Sabrina Davenport holding reproductive feamle pallid sturgeon, PLS11-020.
CSRP Biologist Sabrina Davenport holding reproductive feamle pallid sturgeon, PLS11-020.
Ring-billed gulls line a sand bar along the Missouri River to watch USGS boats fish for sturgeon.
Ring-billed gulls line a sand bar along the Missouri River to watch USGS boats fish for sturgeon.
A wild turkey perches on a rock dike in the Missouri River to get a closer look at USGS boats fishing for sturgeon.
A wild turkey perches on a rock dike in the Missouri River to get a closer look at USGS boats fishing for sturgeon.
CRSP biologists travelled along the Missouri and Mississippi rivers in search of usable boat ramps. Pictured is a ramp located near Cape Girardeau, MO.
CRSP biologists travelled along the Missouri and Mississippi rivers in search of usable boat ramps. Pictured is a ramp located near Cape Girardeau, MO.
CRSP biologists travelled along the Missouri and Mississippi rivers in search of usable boat ramps. Pictured is a ramp Grand Tower, IL.
CRSP biologists travelled along the Missouri and Mississippi rivers in search of usable boat ramps. Pictured is a ramp Grand Tower, IL.