7908

• UCREFRP Catalog Number: 7908
• Author: Valdez, R. A. and R. J. Ryel.
• Title: Life History and Ecology of the Humpback Chub ‎(
• USFW Year: 1995.
• Copyright Material: NO

Final Report

CONTRIBUTORS
REVIEWERS OF THIS
REPORT

AND
FINAL

This Final Report is a synthesis of the efforts and
ideas of many individuals. These ideas were
integrated into 10 chapters, each dealing with a
specific aspect of the life history and ecology of the
humpback chub and management of Glen Canyon
Dam. The report was written in a scientific format
in response to the National Research Council (1987)
review of the GeES Phase I reports. That review
concluded that while much new and valuable
information had been gathered dwing Phase L "...the
production of unpublishable results is testimony to
the inadequacy of the work and of the planning that
led to it." The review further concluded that a
shortfall of the GeES program was "Uncertain
conversion of the research results into management
options." Hence, the study design of this project
was hypothesis-driven, and the report was written as
an integrative document to provide Bureau of
Reclamation with scientifically-defensible
information by which to make management
decisions on the operation of Glen Canyon Dam.
This report was also written in a journal-like style to
facilitate extraction of publishable information, and
key personnel were encouraged to publish various
aspects of the results of this study.

This Final Report was developed through a process
in which data and ideas of many people were
assimilated through a series of trip reports, annual
reports, workshops, and campfire discussions
involving field personnel and administrative staff.
This interaction and exchange of information led to
the development, by key project personnel, of
preliminary chapters that provided detailed data
summaries and preliminary analyses on specific
aspects of the life history of the humpback chub.
These preliminary chapters became the basis for this
Final Report in which data were further analyzed,
and ideas and hypotheses were refined.

The preliminary chapters were written by the project
leaders and senior biologists who were responsible
for certain aspects of the work throughout the
project. Workshops and coordination meetings were
held regularly to collaborate efforts and ensure
consistency among contributors. Bill Masslich was
principal field coordinator and project leader who

Acknowledgments . xxvii

coordinated all remote and mobile radiotelemetry
instrumentation, surveillance, and monitoring, and
together with Bryan Cowdell, performed the initial
data analysis and wrote the preliminary chapter on
Movement. Helen Yard served as principal surgeon
for implanting radio-transmitters in humpback chub.
Bill Leibfried coordinated all the drift studie~ and
fish diet data aild developed the preliminary chapter
on Food Habits. Tony Wasowicz coordinated
development of a stomach pump and gut analyses of
fish in the field and wrote the preliminary chapter on
Distribution and Abundance. Penny (Lydia) Trinca
and Leslie Brown served as Database Manager and
Data Analyst, respectively, and together with Erika
Prats, developed the preliminary chapter on
Demographics. Yvette Converse wrote part of the
preliminary report on habitat as part of her Master's
Thesis. Gloria Hardwick coordinated procurement
ofwater' quality data, ensured that field instruments
were calibrated before and after each trip, and
developed the preliminary chapter on Water Quality.
Craig Goodwin, staff hydrologist, developed a flow
routing model and wrote the preliminary chapter on
Hydrology. Copies of these preliminary chapters
are available from BIO/WEST upon request.

From these preliminary reports, an internal review
draft of the Final Report was developed and
circulated for review by the BIO/WEST staff to
ensure accuracy and consistency in data presentation
and interpretation. Comments were integrated and
an Agency Review Draft was sent to interested
agencies and the BIO/WEST staff. A Draft Final
Report was developed and sent for external review
that led to this Final Report. The preliminary
chapters were modified and refined to reflect the
purpose and objectives of the project and to address
the concerns expressed by the National Research
Council (1987) in their review of the Phase I
reports.

Denise and Kurt Probs played a vital role in the
development of this Final Report. Denise was
administrative assistant and coordinated all project
activity schedules, travel arrangements, and
collating, editing, and issuance of all reports. She
was pivital in assimilating this Final Report by
integrating editorial comments and graphics, and
working closely with the printers to ensure a quality
product. Kurt. Probs created all the computer
graphics and cover and chapter separations for this
report, . demonstrating new and innovative