9395

• UCREFRP Catalog Number: 9395
• Author: Vaske, J. J., M. P. Donnelly and M. Lyon.
• Title: Knowledge, Beliefs, and Attitudes Toward the Endangered Fish of the Upper Colorado River Basin.
• USFW Year: 1995.
• USFW - Doc Type: 20,
• Copyright Material: NO

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Endangered Fish Survey

3

The initial objective was to interview 300 individuals within each strata, A total of 300 anglers
and 304 members of the general public responded to the SUIVey (Figure 1), Because the
population size for each of these strata is large, results can be generalized to the 90%
confidence inteIVaI, :!:IOO,/o. The population of local elected officials in the Upper Colorado
River Basin is considerably smaller, Thus, although fewer individuals in this strata were
SUIVeyed (n = 168), the findings have a margin of error of:!: 2% at the 98% confidence inteIVaI.
Within the fourth strata, 125 environmental organization members were identified and
interviewed, Since a reliable estimate of the population size of environmental group members
who live in the Upper Colorado River Basin is not available, a confidence inteIVal for this strata
cannot be calculated, The total sample size for this study is 897, Of these, 545 were Colorado
residents, 352 resided in Utah,

Figure 1. Number of respondents per strata

Anglers

304

Elected Officials

General Public

Environmental
Groups

Total = 897