Razorback Sucker Genetic Diversity Assessment

The summary for the Razorback Sucker Genetic Diversity Assessment grant is detailed below. This summary states who is eligible for the grant, how much grant money will be awarded, current and past deadlines, Catalog of Federal Domestic Assistance (CFDA) numbers, and a sampling of similar government grants. Verify the accuracy of the data FederalGrants.com provides by visiting the webpage noted in the Link to Full Announcement section or by contacting the appropriate person listed as the Grant Announcement Contact. If any section is incomplete, please visit the website for the Bureau of Reclamation Lower Colorado Region, which is the U.S. government agency offering this grant.
Razorback Sucker Genetic Diversity Assessment: Razorback sucker (Xyrauchen texanus) were once abundant and broadly distributed throughout the Colorado River basin. Water development and introduction and establishment of non-native species resulted in widespread extirpation and declines in distribution and abundance of these and other native species. The razorbacks immediately benefitted from the large newly created impoundments as its populations increased considerably in the years following dam closures. Unfortunately, these and other populations failed to recruit, resulting in dramatic reductions in the number and size of populations as adult fish aged and died, ultimately leading to its listing as endangered (U.S. Fish and Wildlife Service 1991). Razorbacks exhibit high levels of genetic variation that persist, especially in the largest remaining population of Lake Mohave (Dowling et al. 1996b, 2005, 2007). Given this combination of population size and high levels of genetic diversity, the lower river has been a focal point for management action for this species. Early efforts focused on stocking large numbers of hatchery-reared individuals; however, this approach has met with limited success (Marsh et al. 2003, 2005; Schooley and Marsh 2007; Schooley et al. 2008). Most early stockings were of small fish that apparently were lost to predation. A separate repatriation program for restoring razorback sucker in Lake Mohave was begun in the early 1990s (reviewed in Minckley et al. 2003), and perpetuation of that population now is dependent on a long term repatriation program. The Lake Mohave program utilizes wild-produced larvae that are reared in protective custody and repatriated to the lake with the ultimate goal of replacing the pre-existing wild population. This repatriation program was incorporated into the Multi-Species Conservation Program (MSCP) which annually collects wild produced larval fish to be reared for its fish augmentation program. The MSCP currently stocks in excess of 18,000 (300mm plus) razorbacks a year throughout the lower Colorado River (LCR). Long-term survival has been disappointing even for many of the larger fish stocked in recent years (Schooley et al. 2004, 2008). Despite poor long-term survival of stocked fish and general absence of recruitment, collections of larvae have been made in the reach below Davis Dam, in Lake Havasu, and at several localities in the reach downstream from Blythe, California. As in Lake Mohave, these larvae persist only a short time post-swim-up before succumbing to predation or some other cause of mortality. The number and identity of parents contributing to this production are unknown. Unlike Lake Mohave and the LCR, the situation seems more promising in Lake Mead as limited success in razorback reproduction and apparent recruitment has been obtained (Albrecht et al. 2008). Several projects have been initiated to identify specific features of Lake Mead that would allow razorbacks to successfully recruit.
Federal Grant Title: Razorback Sucker Genetic Diversity Assessment
Federal Agency Name: Bureau of Reclamation Lower Colorado Region
Grant Categories: Environment
Type of Opportunity: Discretionary
Funding Opportunity Number: R12SF30001
Type of Funding: Cooperative Agreement
CFDA Numbers: 15.538
CFDA Descriptions: Lower Colorado River Multi-Species Conservation Program.
Current Application Deadline: Sep 15, 2011
Original Application Deadline: Sep 15, 2011
Posted Date: Sep 01, 2011
Creation Date: Sep 01, 2011
Archive Date: Oct 15, 2011
Total Program Funding: $251,699
Maximum Federal Grant Award: $251,699
Minimum Federal Grant Award: $0
Expected Number of Awards: 1
Cost Sharing or Matching: No
Applicants Eligible for this Grant
Others (see text field entitled "Additional Information on Eligibility" for clarification)
Additional Information on Eligibility
This is a Notice of Intent to Award, no competition is being sought.
Grant Announcement Contact
Shawna Thompson Grant Officer Phone 702-293-8570

smthompson@usbr.gov [smthompson@usbr.gov]
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