The Service determines endangered status for the shortnose sucker [Chasmistes brevirostris) and Lost River sucker [Deltistes luxatus), fishes restricted to the Klamath Basin of south-central Oregon and north-central California. Dams, draining of marshes, diversion of rivers and dredging of lakes have reduced the range and numbers of both species by more than 95 percent. Remaining populations are composed of older individuals with little or no successful recruitment for many years. Both species are jeopardized by continued loss of habitat, hybridization with more common closely related species, competition and predation by exotic species, and insularization of remaining habitats. This rule implements the protection provided by the Endangered Species Act of 1973, as amended, for the shortnose sucker and Lost River sucker
Only portions of issues of the Federal Register are available in the Klamath Waters Digital Library. 50 CFR Part 17; Action: Final rule; “FR Doc. 88-16062 Filed 7-15-88: 8:45 a.m.;” Includes bibliographical references; See the Federal Register at http://www.gpoaccess.gov/fr/advanced.html