Tag Archives: Pallid Sturgeon

700,000 Baby Fish

On Monday afternoon, June 27, the collaborating scientists of the Missouri River Pallid Sturgeon Free Embryo Drift Study delivered over 700,000 one-day post hatch (dph) pallid sturgeon to the Upper Missouri River. The drift experiment has been over a year … Continue reading

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Pallid Sturgeon Free Embryo Drift Experiment Starts

By Robb Jacobson, and Casey Hickcox, June 26, 2016 Missouri River scientists started a large-scale collaborative study on June 24 to improve understanding of the fate of pallid sturgeon free embryos (from hatch through first feeding) in the Upper Missouri River (figure 1).  The study … Continue reading

Posted in Early life history, Pallid sturgeon, Upper Missouri and Yellowstone Rivers | Tagged , , |

Sturgeon biology and plumbing

By Robert Jacobson, Aaron DeLonay, Kimberly Chojnacki, and Casey Hickcox This spring, Columbia Environmental Research Center (CERC) scientists are conducting laboratory experiments to better understand how temperature affects early development of sturgeon species.  The emphasis is on quantifying development rates … Continue reading

Posted in Early life history, Pallid sturgeon, Reproductive Female, Spawning, Sturgeon culture and propagation, Technology | Tagged , , |

Experiments on Early Sturgeon Development

By Robert Jacobson, Aaron DeLonay, Kimberly Chojnacki, and Casey Hickcox Pallid sturgeon (Scaphirhynchus albus), like most fish, are cold-blooded.  This means that their metabolism is regulated by the temperature of the water in which they live.  As water warms, developmental … Continue reading

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New Pallid Sturgeon Reports

By Robert Jacobson Our blog has been quiet lately because we have been concentrating on writing and reporting. It has been said that if scientific information isn’t published, it’s as if it doesn’t exist. On rivers like the Missouri, where … Continue reading

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Through the Looking Glass

By Kimberly Chojnacki and Aaron DeLonay Pallid sturgeon eggs are approximately three millimeters, or less than one eight of an inch, in diameter. While the eggs of this endangered sturgeon are small, the changes that happen inside are truly a … Continue reading

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Spawning of Pallid Sturgeon for Crucial Experiments

By Kimberly Chojnacki, Aaron DeLonay, and Robert Jacobson Researchers at the USGS Columbia Environmental Research Center (CERC) have been making preparations to spawn pallid sturgeon to provide eggs and larvae for experiments.  During March and April, the captive population of … Continue reading

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Unpredictable Water in the Missouri River

By Aaron Delonay, Robert Jacobson, and Casey Hickcox As the temperatures in the Missouri River Basin begin to rise each spring, snowmelt and spring storms typically introduce large quantities of water into the system. This water becomes runoff that enters … Continue reading

Posted in Drought, Flooding, Spawning | Tagged , , , |

Adult Reproductive Studies Benefit from Broodstock Collection Effort

Each spring biologists and volunteers from State and Federal agencies cooperate to collect adult pallid sturgeon from the Lower Missouri River for hatchery propagation.  Offices from the U.S. Fish and Wildlife Service, Missouri Department of Conservation, Nebraska Game and Parks … Continue reading

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