was divided into North and South sections with the boundary' approximated by a Hne 

 from Waikins Point to "Chub Beach" on the Horse Butte Peninsula (Fig. 1). ] 



Within each stratum during the summer creel (June 12 through October 15, 2000), 5 

 weekdays and t\\ o \\ eekend days were selected at random. On each count date, anglers 

 were counted in either the morning (6am to 2pm) or evening (2pm to 10pm), also 

 selected at random. The summer creel surxey involved two creel clerks from June 12 - 

 August 24, 2000, and a single clerk thereafter. T\\ o starting times were selected for 

 counts at random within the morning or evening sampling period (i.e. 6 or 7 am. or 2 or 3 

 pm). Counts began on either the North or South half, selected at random. The second 

 count alternated to the opposite half 2 hours later. Thus, on a given day, counts could 

 begin at 6am North, Sam South, 10am North, and 12pm South. On the North side, a clerk 

 counted anglers from Highway 287 at designated pull-offs from Hebgen Dam to the 

 Grayling Creek Narrows (or vice versa), using a spotting scope or binoculars (Fig. 1 ). 

 When available, the second clerk counted anglers in the Grayling Arm from Horse Butte 

 to Rainbow Point (Fig. 1 ). Alternately, anglers were counted on the south side from the 

 Madison arms to Edwards Peninsula from the Horse Butte Road. The other clerk counted 

 from the South Fork Arm to Spring Creek Campground. 



During the winter creel (October 16, 2000 - March 4, 2001) a single creel clerk counted 

 anglers one weekend day and three weekdays per two-week stratum. Either the North or 

 South half was selected for the first count until the South half became inaccessible at the 

 end of the October 16-29, 2000 stratum. Beginning October 30, 2000. the creel clerk 

 would count only the North side except on a single count date per stratum, when they 

 would count the South side exclusively, by snowmobile. During the winter creel, counts 

 began at either 8 or 9am. chosen at random. During late winter creel (March 5 - April 

 29. 2001 ), count times returned to either morning or evening start times on a single 

 weekend day and 4 weekdays per stratum, with a single weekday dedicated to counting 

 the South half Spring creel (April 30 - June 10, 2001) returned to count schedules 

 similar to the summer creel: a single creel clerk, counting the North and South halves 

 alternately, on two weekend days and 4 weekdays per stratum. 



Angler Interviews: 



Catch and creel information and angler characteristics were surveyed by conducting 

 interviews with anglers. During non-count hours, clerks attempted to interxiew anglers at 

 marinas and key access points or via boat. Questions included: number of anglers in 

 party; time fishing began, ended, and whether trip was completed; hours fished; angler 

 origin (Montana county, or state of origin); number offish caught, kept, and released, by 

 species; whether they fished from shore, boat, or non-motorized boat; fishing method 

 and terminal tackle; and target species (form in Appendix C). 



Clerks requested permission to measure and weigh each creeled fish, identified species, 

 collected scale samples, and offered to dress rainbow trout in exchange for collecting 

 vertebrae, which allowed determination of hatchery or wild origin. A single vertebra was 

 collected from each rainbow trout immediately posterior to the cranium. The clerks 

 noted their judgment as to whether a rainbow trout was wild or hatchery-reared based on 



