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December 1 to January 31, 2005

1. Highlights of GCMRC activities:

Grand Canyon Area Discharge and Lake Powell Elevation Data Web Page: A new discharge and lake elevation web page is available to the public. This page allows users to select a station, data fields, and the date range to download to a local computer. Sites maintained by USGS Water Resources Division are updated every hour: Colorado River (CR) near Grand Canyon, CR at Lees Ferry, Little CR above mouth, Paria River at Lees Ferry, Little CR near Cameron, and CR above Diamond Creek. Bureau of Reclamation Glen Canyon Dam data are also available and updated every weekday morning before 10:00 am MST. Valuable contributions came from Glenn Bennett, who wrote code to handle the automation, and Chris Taesali, who applied the template and made sure the content was accessible to individuals with disabilities. View the web page at http://www.gcmrc.gov/products/flow_data/. Contact: Glenn Bennett, USGS Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ; telephone 928-556-7378, email gbennett@usgs.gov.

Glen Canyon Dam Adaptive Management Outreach: Mike Liszewski participated in the Glen Canyon Adaptive Management Work Group Outreach ad-hoc meeting in Flagstaff, AZ on January 21 and 22. Pam Hyde of the Grand Canyon Wildlands Council chaired the meeting whose purpose was to complete products currently in development, improve the process for product development, coordinate with USGS, Grand Canyon Monitoring and Research Center on communicating experimental flow results, prepare for the March AMWG meeting, and to continue development of long-term public outreach strategy relative to the operation of the Glen Canyon Dam on the Colorado River. Contact: Mike Liszewski, USGS Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ; telephone: 928-556-7458; email: mjlisz@usgs.gov.

Geomorphology Symposium: Helen Fairley of the Southwest Biological Science Center is organizing a Geomorphology Symposium on 8 - 10 February 2005, at Museum of Northern Arizona in Flagstaff, AZ. She is partnering with colleagues from NPS and BOR archaeology departments to bring together researchers that have information on the erosional and accretional processes affecting higher elevation terraces bordering the Colorado River, where most archaeological sites are concentrated. The Symposium is intended to assess the factors contributing to erosion of terraces and to propose methods for future monitoring and preservation of archaeological resources. Contact: Helen Fairley, USGS Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ; telephone: 928-556-7285; email: hfairley@usgs.gov.

Colorado River Sediment: Scott Wright of the Southwest Biological Science Center provided the Glen Canyon Dam Adaptive Management Program (GCDAMP) estimates of sediment input into the Colorado River below Glen Canyon Dam from the recent Paria flood. This information will assist the managers in making decisions about dam operations. Contact: Scott Wright, USGS Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ; telephone: 928-556-7069; email: swright@usgs.gov.

2. GCMRC in the news:

Nothing to report.

3. New publications received by the GCMRC library:

  1. Paukert, C.P. 2004. Comparison of electrofishing and trammel netting variability for sampling native fishes. Journal of Fish Biology 65: 1643-1652.
  2. Choudhury, Anindo, Timothy L. Hoffnagle and Rebecca A. Cole. 2004. Parasites of Native and Nonnative fishes of the Little Colorado River, Grand Canyon, Arizona. Journal of Parasitology 90(5) : 1042-1053.
  3. Schmidt, J.C., D.J. Topping, P.E. Grams and J.E. Hazel. 2004. System-wide Changes in the Distribution of Fine Sediment in the Colorado River Corridor between Glen Canyon Dam and Bright Angel Creek, Arizona. Cooperative Agreement Number 1425-98-FC-40-22640. Electronic Access: http://www.gcmrc.gov/library/reports/physical/Fine_Sed/Schmidt2004.pdf
  4. Stone, Dennis M. 2004. Differential Detection of Ingested Items Evacuated from Genus Gila Cyprinids by Two Nonlethal Alimentary Tract Lavage Techniques. Journal of Freshwater Ecology 19 (4): 559-565.

Contact Stephanie Wyse at the GCMRC library (928-556-7373) to obtain reprints of publications not available electronically.