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<br />CHAPTER 2 - STUDY DESIGN
<br />
<br />This chapter describes the study design elements
<br />common to the overall sampling program., including
<br />project schedule, sampling design, fish sampling,
<br />methods, and fish handling methods. More detailed
<br />methods are presented in respective chapters, such
<br />as techniques to gather hydrology data (Chapter 3),
<br />and water quality data (Chapter 4), or unique
<br />methods and calculations to determine distribution
<br />and abundance (Chapter 5), demographics (Chapter
<br />6), habitat use (Chapter 7), movement (Chapter 8),
<br />and food habits (Chapter 9).
<br />
<br />PROJECT SCHEDULE
<br />
<br />This study was initiated by BIOIWEST (BIW) in
<br />September 1990 and completed with this report in
<br />September 1995 (Fig. 2-1). Project workshops were
<br />held in December ofl990, 1991, 1992, 1993, and
<br />1994 to provide ongoing staff coordination, identify
<br />and resolve problems, update the data collection
<br />protocol, and provide progress reports to Bureau of
<br />Reclamation (Reclamation) and Glen Canyon
<br />Environmental Studies (GCES). A Data Collection
<br />Plan (Plan), issued as Supplement No. I to this Final
<br />Report, was drafted early in the project as a field
<br />handbook and updated periodically to standardize
<br />techniques and establish protocols for consistency in
<br />data collection and compatibility with other GCES
<br />
<br />investigations. This Plan provides detailed
<br />descriptions of field sampling methods, care and
<br />handling of fish, and database management that
<br />were too lengthy to include in this report. An
<br />Evaluation of Sampling Design (Supplement No. II)
<br />provides details on the efficiency of sampling
<br />techniques.
<br />
<br />Field Trips
<br />A total of 36 monthly field trips were conducted on
<br />the Colorado River in Grand Canyon from Lees
<br />Feny to Diamond Creek (RM 0.0-226.0) starting in
<br />October 1990 and ending in November 1993 (Fig.
<br />2-1). Trips were held monthly, except for December
<br />1991 and 1992. From October 1990 through
<br />November 1992, trip length alternated between 12
<br />and 20 days; hence, in 1991 and 1992, five 12-day
<br />trips (February, April, June, August, October) and
<br />six 20-day trips (January, March, May, July,
<br />September, November) were conducted. The
<br />schedule was modified in 1993 to eight 16-day trips
<br />(January, February, March, April, June, August,
<br />October, November), and three 20-day trips (May,
<br />July, September). Launch dates and sampling
<br />locations were coordinated with Arizona Game and
<br />Fish Department (AGF), when possible, to provide
<br />concurrent sampling and complementary datasets.
<br />
<br />Tasks or Products 1990 1991 1992 1993 1994 1995
<br /> SO ND J F M A MJ J AS ON D J F MAM J J ASO N D J F MA M IJ J A SON D J F MA MJ JAB ON D J FM A MJ J A 5
<br />Project Workshops 0 0 0 0 I 0
<br />Da13 Collection Plan 0 0 0 0 0 0
<br />12- Day Trips . . . . . . . . . . . .
<br />20- Day Trips . . . . . . . . . . . . . . . .
<br />Special 18-Day Trip I .
<br />18- Day Trips . . . . .! . . .
<br />Trip Reporls o 0 0 o 0 0 o 0 0 . . -I- · o 0 o . 0 -,-I- . . e. 00 o 0 0 -1-1- o 0 0 0
<br />Annual Reports . I 0 ! 0 I i I
<br />Database Integration I , II 1 0
<br />Population Model I , I i ,! I 1 0
<br />A NAL REPORT
<br />Preiminary Agency R&<iew I III I I i I I II 11 I i 0 I I
<br />Draft I I
<br /> I I
<br />Agency ReIIiew Draft I I II I I I I , ! j I j oil
<br />External Relliew Draft i I Ii I I i i I i I i I I 0
<br /> I I i I
<br />Final Reoort , I I I , i i I I i ! i i i i I I , i i i I I 0
<br /> , ,
<br />
<br />o Deiverable or Event
<br />. Field Trips
<br />
<br />Fig. 2-1. BIOIWEST project schedule
<br />
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