The Lark Seep Lagoon is on the China Lake Naval Weapons Center, to which tui chubs were introduced in 1971, where today the population still exists.
[1][3] 60 chubs were introduced to the Barstow Way Station Pond, but were not considered a population due to their containment in a small and artificial environment and no longer exists today.
The group discussed the possibility of reintroducing the Mohave tui chub into the Mojave River to delist it.
Arroyo chubs were introduced to the river in the 1930s by trout fishermen as bait fish,[2] and their spread was aided by significant flooding in 1938.
[1] An additional threat to the Mohave tui chub was the discovery of Asian tapeworm within the species in 2001 in Lake Tuendae, the same time western mosquitofish were found there as well.
Native to China, this tapeworm spends a portion of its life cycle inside the intestine of freshwater fish.
Student Thomas Archdeacon designed an experiment to test the effects of Asian tapeworm on Mohave tui chubs in 2007.
It was concluded that Asian tapeworm does not directly reduce Mohave tui chub survival and decreases growth slightly.
While more studies are needed, he concluded that eventually, the Mohave tui chub reaches a size that protects them from predation by mosquitofish.
Additionally, mosquitofish may even provide a food source as they were found within the stomachs of Mohave tui chubs multiple times in the field.
The California Department of Fish and Wildlife backs up these claims, stating that Mohave tui chubs still exist today at Soda Springs, Camp Cady, and China Lake.
Chen et al.[6] believe that the goal to reintroduce Mohave tui chub into the Mojave River is unattainable today.