Tag Archives: Upper Missouri and Yellowstone Rivers

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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It’s more than just gravel and sand!

By Aaron Delonay, Robert Jacobson, and Casey Hickcox Scientists hypothesize that pallid sturgeon (Scaphirhynchus albus), like other sturgeon species, spawn over hard or coarse substrate such as bedrock, cobble or gravel. The type, size, or composition of coarse substrate that … 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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Yellowstone pathways

Over the past couple of weeks, biologists from the USGS and Montana Fish, Wildlife and Parks have been tracking pallid sturgeon in the Yellowstone River while USGS hydrologists map their habitats.  This pallid sturgeon population has access to the Missouri … Continue reading

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