Category Archives: Upper Missouri and Yellowstone Rivers

Habitat surveys of 2015 pallid sturgeon spawning patches on the Yellowstone River

By Carrie Elliott, Robb Jacobson, and Casey Hickcox During the last two weeks of June, USGS habitat crews surveyed the pallid sturgeon spawning reach of the Lower Yellowstone River near Fairview, North Dakota.  Using a compact multibeam sonar echosounder system … Continue reading

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Characterizing Spawning Habitat Substrate on the Lower Yellowstone River

By Eric Allen, Ed Bulliner, Carrie Elliott, Robert Jacobson Many sturgeon species spawn over coarse, hard substrate, and Missouri River scientists have thought that this was probably the case for the endangered pallid sturgeon (Scaphirhynchus albus).  Characterizing the size, type, … Continue reading

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The Sounds of Sturgeon Research

By Aaron DeLonay, Kimberly Chojnacki, and Casey Hickcox Recently, Comprehensive Sturgeon Research Project scientists documented a spawning event in the Yellowstone River when researchers followed a reproductive female sturgeon to a location where an aggregation of male sturgeon had been identified (See … Continue reading

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A Spawning Recorded in the Yellowstone River

By Patrick Braaten She was initially captured in September 1993, but at the time, the sex and reproductive status of the 1325 mm, 15.9 kg pallid sturgeon were not determined. She was implanted with a passive integrated transponder (PIT) tag … Continue reading

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Yellowstone River Habitat Update

By Carrie Elliott In the Northern Great Plains mid-late June is marked by spectacular thunderstorms, an occasional mosquito swarm, and pallid sturgeon spawning season on the Yellowstone River.  The week of June 16 the U.S. Geological Survey CSRP habitat crew … Continue reading

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Northbound

By Kimberly Chojnacki and Aaron DeLonay In mid-June, 4 USGS research crews from the Lower Missouri River packed up their equipment and headed north to the Upper Missouri and Yellowstone Rivers in Montana (figure 1).  Two boats and crews were … Continue reading

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Pallid Sturgeon Spawning in the Yellowstone River

Pallid sturgeon in the upper Missouri and Yellowstone rivers can live a long time.  Many are older than most of the biologists who study them.  Over the years, scientists have become very familiar with the few remaining wild sturgeon. One … Continue reading

Posted in Reproductive Female, Upper Missouri and Yellowstone Rivers |

Just One of the Guys

For more than a week in early June, USGS telemetry tracking boats from Missouri joined the Montana Wildlife Fish and Parks and the USGS Fort Peck Field Office as they raced up and down the Yellowstone River trying to keep … Continue reading

Posted in Telemetry tracking, Upper Missouri and Yellowstone Rivers |

On the Right Path

“We have a boy, code 52, on his way to Intake Dam.  We’ve tracked him all day through bends and side channels.  He is a couple of miles away from the Dam.  Can you spare a crew to track him … Continue reading

Posted in Telemetry tracking, Upper Missouri and Yellowstone Rivers |

Headed North

With telemetered female pallid sturgeon done spawning in the Lower Missouri River, the USGS tracking crews from Missouri packed up their equipment at the beginning of June and headed north to Montana and the Yellowstone River.  It was a two … Continue reading

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