12-Month Finding on a Petition to List the San Francisco Bay-Delta Population of the Longfin Smelt (Spirinchus thaleichthys) as Endangered

We, the U.S. Fish and Wildlife Service (Service), announce a 12-month finding on a petition to list the San Francisco Bay-Delta population of the longfin smelt (Spirinchus thaleichthys) as endangered with critical habitat under the Endangered Species Act of 1973, as amended (Act). After a thorough review of all available scientific and commercial information, we find that the San Francisco Bay-Delta population of the longfin smelt does not meet our definition of a distinct population segment (DPS), as identified in our DPS policy (61 FR 4721, February 7, 1996). As a result, listing the species as a DPS is not warranted. However, we are initiating a status assessment of the longfin smelt, and we solicit information on the status of the species range wide.