DRAFT: Version 1.1
Executive Summary
Prince William Sound Opinion and Values Study
March 17, 2001
Prepared by Greg Brown
Associate Professor
Alaska Pacific University
(907) 564-8267 (gregb@alaskapacific.edu)
Introduction
In November of 2000, a mail survey was conducted by Alaska Pacific University through a cooperative research agreement with the National Wildlife Federation. The purpose of the survey was to measure what Alaska residents value about Prince William Sound and to measure attitudes and opinions about specific policy issues such as shoreline development, tourism growth, jet-ski use, and cruise ship regulation. The survey contacted 1825 Alaska residents living in the Prince William Sound communities of Cordova, Valdez, Whittier; the villages of Tatitlek and Chenega Bay; the city of Anchorage; and a random statewide sample of Alaskan residents. Over 540 responses were received with an overall response rate of 31%.
Survey Content
The mail survey contained questions in seven sections: 1) how frequent residents visit Prince William Sound and what activities they participate in, 2) resident attitudes toward potential activities in the Sound such as commercial fishing, resort development, and personal watercraft, 3) resident preferences for specific policy choices in the next 10-15 years such as the amount of new shoreline development, regulation of personal watercraft, cruise ship use, and regulation of commercial tour boats, 4) resident perceptions of the magnitude of potential future impacts to Prince William Sound (e.g., oil spills, cruise ships, tour boats, commercial fishing), 5) what residents value most about the Sound from a list of 13 values (aesthetic, economic, recreation, life sustaining, learning, biological diversity, spiritual, intrinsic, historic, future, subsistence, therapeutic, and cultural) and where these values are spatially located in the Sound, 6) resident preferences for recreational experiences in the Sound, and 7) respondent characteristics (for example, in terms of length of residence, formal education, gender, and occupation).
Key Findings
Favorable: (mean value < 2.75) Sightseeing (private boat), sightseeing (tour boat), commercial fishing, sport fishing, sport hunting, subsistence fishing/hunting, non-motorized boat recreation, primitive cabins, mariculture, fish hatcheries, communication sites, helicopter skiing, commercial flightseeing.
Mixed (mean value 2.75-3.25): sightseeing (large cruise ships).
Unfavorable (mean value > 3.25): personal watercraft/jet-skis, resort development, and floating lodges.
Conclusion
Residents of Prince William Sound deeply care about their marine environment. They value the Sound for many reasons, but of greatest importance are its scenic beauty, recreational opportunities, and economic bounty, particularly commercial fishing. Subsistence values are especially important to residents of Cordova and the villages of Tatitlek and Chenega Bay.
Residents perceive the Sound to be in relatively good ecological condition and want it to remain that way. They believe shoreline development should be limited and targeted to protecting the marine environment or enhancing primitive recreation opportunities. They do not support resort development or floating lodges.
Residents are concerned about tourism growth in the Sound but are open to small, incremental growth in cruise ship activity. All communities oppose a large increase in cruise ship numbers while the community of Cordova is most negative about cruise ship activity. If cruise ship activity were to increase, the community of Valdez is the preferred community to locate the growth. Residents also believe that tour boat operators will need to be regulated to protect the Sound. In addition to controlling air and water discharges, residents believe that all aspects of tour boats operations may require regulation in the next 10-15 years.
Residents are negative about personal watercraft (jet-ski) use in the Sound and a significant portion of respondents (42%) would ban them completely. Short of a ban, residents believe that jet-skis need to be regulated for reasons of marine protection, public safety, and solitude.
Finally, the largest potential impacts to Prince William Sound are perceived to be from oil spills, mining or logging activity, cruise ship activity, and shoreline development. If this assessment is accurate, these are the areas where the greatest resources (individual, institutional and budgetary) should be concentrated to limit negative impacts on the marine environment.
A Note on the Accuracy of Results:
There are at least 4 major sources of potential error in survey research: coverage error—how adequately the sampling frame covers or is inclusive of the actual sample population; measurement error—how well the survey questions measure what they are intended to measure; sampling error—how large the sample size is as a function of the target population; nonsampling error (nonresponse)—how much bias is introduced through non-participation? Each of these sources of error is addressed below.
Sampling frame: Survey participants were randomly selected from the year 2000 Alaska Permanent Fund Dividend Database. This database contains the names and addresses of an estimated 90 percent of Alaska residents. The PFD database under represents new residents to Alaska, i.e., residents who have lived in Alaska less than 2 years. Thus, sampling frame coverage is high but the newcomer population segment is specifically excluded from the sample.
Survey instrument: questions in the survey instrument were pre-tested and peer reviewed by other social scientists prior to implementation. Some of the survey measures such as landscape values have been used and published in previous research. Measurement error is believed to be within acceptable limits.
Sampling error: Initial sample sizes were chosen to provide a margin of error of plus or minus 5 percent on a Yes/No type question with a 95 percent confidence level. The number of nonrespondents affects the confidence level and/or margin of error associated with the reported results (assuming no additional error is introduced through nonresponse bias). The final level of sampling error by community on a single Yes/No question (assuming the most conservative population estimate of .5) given the actual response rate would be as follows: Whittier (65% confidence level within +/- 5%), Cordova (82% confidence level within +/- 5%), Valdez (79% confidence level within +/- 5%), Anchorage (65% confidence level within +/- 5%), Statewide (62% confidence level within +/- 5%).
Nonsampling error. The greatest threat to the accuracy of the reported results is the potential for nonresponse bias. One method to account for nonresponse bias is to assess the representativeness of repondents by comparing their characteristics with community characteristics from census data. Responses from the Cordova/Valdez communities contain more males (62% survey vs. 55% 1999 census estimate), are somewhat older (7.7% in survey 65 years or older vs. 5.9% 1999 census estimate), more educated (36% in survey with college degree vs. an estimated 20% from 1990 census data), and under represent minority groups (9.2% Alaska Native in survey vs. 13.8% 1999 census estimate). Responses from Anchorage are similar: respondents contain more males, are somewhat older, have more formal education, and slightly under represent (about 2%) minority groups. The potential effect of these respondent biases cannot be discounted; nevertheless, the discrepancies in respondent characteristics do not appear large enough to invalidate the strongest findings in the survey.