Category Archives: Habitat mapping

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

Posted in Habitat mapping, Methods, Pallid sturgeon, Reproductive Female, Spawning, Telemetry tracking, Upper Missouri and Yellowstone Rivers | Tagged , , |

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

Posted in Habitat mapping, Spawning, Upper Missouri and Yellowstone Rivers | Tagged , , |

New shallow water surveying technology deployment at CERC

By Carrie Elliott, Robb Jacobson, Eric Allen, and Casey Hickcox This spring, experiments to observe shovelnose sturgeon spawning behavior have been ongoing in ponds at the Columbia Environmental Research Center. To characterize the depths and velocities in the experimental ponds, … Continue reading

Posted in Habitat mapping, Technology | Tagged , , |

Spreading the word on pallid sturgeon research

By Robert Jacobson, Kim Chojnacki, and Casey Hickcox Columbia Environmental Research Center (CERC) scientists took to the road in March to share some of the center’s work over the last year with the Missouri River Natural Resource Conference (MRNRC) in … Continue reading

Posted in Education, Habitat mapping, Technology |

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

Posted in chute, Habitat mapping, Technology | Tagged , , , |

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

Posted in Habitat mapping, Spawning | Tagged , , , |

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

Posted in Habitat mapping, Upper Missouri and Yellowstone Rivers | Tagged |

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

Posted in Habitat mapping, Sturgeon culture and propagation | Tagged , , , , , |

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

Posted in Habitat mapping |

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

Posted in Habitat mapping, Telemetry tracking, Upper Missouri and Yellowstone Rivers | Tagged |