Category Archives: Habitat mapping

Mapping the Chutes

By Robert Jacobson and Casey Hickcox The presence of pallid sturgeon (Scaphirhynchus albus) on the Federal Endangered Species List generally boils down to their inability to reproduce in the wild. Scientists suspect shallow-water habitat lost when the Missouri River was … 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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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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We Just Wanna See What Happens Down There!

Pallid sturgeon exist almost exclusively in habitats that are notoriously difficult to study. Particularly due to river flow and turbidity, there are many aspects of sturgeon behavior which scientists struggle to observe and truly understand. One such behavior which Comprehensive … Continue reading

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Mapping baby sturgeon habitat at Hartsburg

USGS scientists have been working this summer and fall with the U.S. Fish and Wildlife Service’s Columbia Fisheries Resource Office to map river habitat at sites where they are sampling for young sturgeon.  The crew is targeting age-0 sturgeon. These include … Continue reading

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Path of least resistance?

  USGS hydrologists and biologists joined with biologists from Montana Fish, Wildlife, and Parks to radio track pallid sturgeon as they navigated the Yellowstone River during late May and Early June.  Following one fish over the course of a day … 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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