|Image by John Rinne via FishIndex|
These Suckers are comparatively long lived, beginning to spawn at about 4 years old, and can live up to 40. However, despite their longevity, most of the young are dying early. This is mainly attributed to the large number of invasive predator fish that have been introduced into the Colorado River. Fragmented habitat and dams have also negatively affected their numbers. After all this, scientists estimate there are only about 500 adults left in the wild.
There are conservation efforts in place, many of which revolve around hatcheries in Utah and Colorado. The numbers are beginning to increase, and they’re certainly working on removing the invasive fish from the river.
1I’m getting pretty good at determining if I’ve got enough information fairly quickly anymore. A lot of that has to do with the number of photos Google has.