Reintroduction Strategies

Upper Narrows of the Mojave River (looking up river, south in the fall)

There have been several tries to introduce the Mohave tui Chub into both private and public ponds and lakes. All these attempts have been made as an effort to establish six permanent refugia for the Chub in order to have it down-listed from endangered to threatened. Ideally, the Chub would someday be reintroduced back into its native habitat, the Mojave River itself. Unfortunately, because of the presence of the Arroyo Chub, which can hybridize with the Mohave tui Chub, this reintroduction is unrealistic at this time. Until the Arroyo Chub can be removed, reintroduction possibilities are practically obsolete. If under ideal circumstances the impossible could occur, the Chub would be introduced into the headwaters of the Mojave River. Here, where the water is least likely to dry up, the Chub would have the most

chances of survival. The Upper Narrows would also be an ideal place to reintroduce the Chub especially in the area of Highway 18 where it runs through Apple Valley.This stretch of river is the last place on the whole river to run dry because surface flow is supplimented by the overflow from the trout fish hatchery located on the campus of the Victor Valley College. The Hatchery is scheduled to be closed down, however, which could impact the surface flow 4 miles downriver (North) at the Upper Narrows. This area is maintained by the Lewis Center for Educational Research, home of the Academy for Academic Excellence.

Ideal Opportunity:

On the property owned by the Lewis Center for Educational Research, there exists a naturally occurring oxbow lake. This lake is a natural extension of the Mojave River and could possibly be a future habitat for the Mohave tui Chub.

The oxbow lake and surrounding marsh (pictured at left) is surrounded by beaver dams that help to maintain the water level in the lake. However, no one knows how the water in the lake actually gets there. There is hope that if the Chub were introduced in this location, they would somehow find their way into the Mojave River through whatever course the water gets in. This would be ideal because it would take no human resources to make this reintroduction successful.