Endangered and Threatened Wildlife and Plants; Proposed Determination of Critical Habitat for Lost River Sucker and Shortnose Sucker

摘要

The Fish and Wildlife Service (Service) proposes to designate critical habitat for the Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris), two species federally listed as endangered pursuant to the Endangered Species Act of 1973, as amended (Act). Both species are large, long-lived fish endemic to the Upper Klamath River Basin of Oregon and California. The proposed designation includes a total of approximately 182,400 hectares (456,000 acres) of stream, river, lake, and shoreline areas as critical habitat for the shortnose sucker and approximately 170,000 hectares (424,000 acres) of stream, river, lake, and shoreline areas as critical habitat for the Lost River sucker. This proposed critical habitat designation would result in additional review requirements under section 7 of the Act with regard to Federal agency actions. Section 4 of the Act requires the Service to consider economic costs and benefits prior to making a final decision on the size and scope of critical habitat.