CALFED Science Program Workshop - The Use of Artificial Propagation as a Tool for Central Valley Salmonid and Delta Smelt Conservation
An important goal of the CALFED Science Program is to provide authoritative and unbiased descriptions of scientific knowledge. To fulfill this goal, the Science Program holds workshops designed to provide a forum for discussions and the exchange of information among scientists, stakeholders, agency staff, and the public about topics important to the region.
The construction of dams and large water diversions, extensive introduction of non-native fishes and water pollution have imperiled many fish species and populations endemic to western river systems. Not surprisingly, fishery managers are increasingly raising native fishes in captivity, often with the hope of reintroducing them to habitats from which they have disappeared. Raising organisms in captivity is called artificial propagation (AP); AP has sometimes been a successful component of animal restoration strategies. However, there are well-founded scientific concerns that AP and related strategies can compromise the genetic fitness of the populations they are intended to restore.
CALFED Science Program Workshop - The Use of Artificial Propagation as a Tool for Central Valley Salmonid and Delta Smelt Conservation
Thursday, July 24, 2008
8:30 a.m. to 4:30 p.m.
Delta Conference Room
650 Capitol Mall, 5th Floor
Sacramento, CA 95814
This meeting will be Webcast.
http://www.visualwebcaster.com/event.asp?regd=y&id=49706
Workshop Purpose
This workshop will provide an opportunity for information exchange among scientists and managers who are already trying to use AP to preserve rare fishes and those planning to use AP for the preservation and reintroduction of Bay-Delta species.
A second purpose is to explore the following questions in a panel discussion:
- What are the pros and cons of AP as a tool in the recovery of endangered fish in the Bay-Delta system?
- Under what circumstances can AP be used effectively for endangered fish conservation?
- When should AP not be used?
- What kinds of fishes might be more or less amenable to a successful AP/reintroduction program?
- Are there alternatives to AP that should be used for endangered fish conservation?
Workshop Product
The CALFED Science Program will produce a written report on the workshop. This report will include:
- The key points made by each presenter
- An overview of the scientific uncertainties highlighted during the workshop
- Collaborative responses to the questions listed above
In addition, development of an essay will be considered for publication in San Francisco Estuary and Watershed Science online journal.
The report and speakers’ presentations will be posted on the CALFED Science Program website http://www.science.calwater.ca.gov/science_index.html.
Order of agenda items and listed times are subject to change.
AGENDA
- 8:30 Welcome and Introduction - Dr. Cliff Dahm, CALFED Lead Scientist
- 8:40 Artificial Propagation: general background, examples and guidelines - Dr. Phil Hedrick, Arizona State University
- 9:40 Management of genetic resources in the federally endangered Rio Grande silvery minnow - Dr. Tom Turner, University of New Mexico
- 10:10 Break
- 10:25 USFWS plans for captive propagation of delta smelt - Mr. Bob Clarke, US Fish and Wildlife Service
- 10:55 Development of a delta smelt refuge: an aquaculturist’s insights - Dr. Bradd Baskerville-Bridges, UC Davis
- 11:25 Delta smelt refugial population genetics - Dr. Katie Fisch, UC Davis/Scripps Institute of Oceanography
- 11:55 Lunch
- 1:30 Supplementing natural populations of Pacific salmon: risk-benefit considerations and a review of empirical results - Dr. Robin Waples, National Marine Fisheries Service
- 2:15 Integrating genetics into artificial propagation planning for salmonid re-establishment - Dr. Josh Israel, UC Davis
- 2:45 Panel Discussion - Facilitated by Cliff Dahm and Matt Nobriga, CALFED Science Program
- 4:00 Public Comment
- 4:30 Adjourn