What is the difference between a “threatened” or an “endangered” designation?
“Endangered” means a species is in danger of extinction throughout all or a significant portion of its range. “Threatened” means a species is likely to be come endangered within the foreseeable future. What did the Service find regarding the status of the sicklefin and sturgeon chubs? The Service reviewed the best available data from fisheries investigations conducted throughout the range of these species and found that sicklefin and sturgeon chub are more common and more widely distributed than previously believed. Sicklefin Chub: Self-sustaining populations of sicklefin chub occur in three locations within the Missouri River basin: above the headwaters of Fort Peck Reservoir in Montana; in the Yellowstone-Missouri River confluence area of Montana and North Dakota; and in the Missouri River from St. Joseph, Missouri to the confluence with the Mississippi River. Data collected by the Missouri Department of Conservation since 1997 indicate that a viable population of sicklefin chub are
