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Participation, Catch, and Harvest in Alaska Sport Fisheries During 1999

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Participation, Catch, and Harvest in Alaska Sport Fisheries During 1999 Fishery Data Series No. 01-8 Participation, Catch, and Harvest in Alaska Sport Fisheries During 1999 by Allen L. Howe, Robert J. Walker, Cynthia Olnes, Kathrin Sundet, and Allen E. Bingham June 2001 Alaska Department of Fish and Game Division of Sport Fish Symbols and Abbreviations The following symbols and abbreviations, and others approved for the Système International d'Unités (SI), are used in Division of Sport Fish Fishery Manuscripts, Fishery Data Series Reports, Fishery Management Reports, and Special Publications without definition. All others must be defined in the text at first mention, as well as in the titles or footnotes of tables and in figures or figure captions. Weights and measures General Mathematics, statistics, fisheries (metric) All commonly e.g., Mr., Mrs., alternate hypothesis HA centimeter cm accepted a.m., p.m., etc. base of natural e deciliter dL abbreviations. logarithm gram g All commonly e.g., Dr., catch per unit effort CPUE hectare ha accepted Ph.D., R.N., coefficient of CV professional titles. etc. kilogram kg variation and & 2 kilometer km common test statistics F, t, c , etc. at @ liter L confidence interval C.I. Compass directions: meter m correlation coefficient R (multiple) east E metric ton mt correlation coefficient r (simple) north N milliliter ml covariance cov south S millimeter mm degree (angular or ° west W temperature) Copyright ã degrees of freedom df Weights and measures Corporate suffixes: divided by ÷ or / (in (English) Company Co. equations) 3 cubic feet per second ft /s Corporation Corp. equals = foot ft Incorporated Inc. expected value E gallon gal Limited Ltd. fork length FL inch in et alii (and other et al. greater than > mile mi people) greater than or equal ³ ounce oz et cetera (and so etc. to pound lb forth) harvest per unit effort HPUE quart qt exempli gratia (for e.g., less than < yard yd example) less than or equal to £ Sp ell out acre and ton. id est (that is) i.e., logarithm (natural) ln latitude or longitude lat. or long. logarithm (base 10) log Time and temperature monetary symbols $, ¢ logarithm (specify log2, etc. day d (U.S.) base) degrees Celsius °C months (tables and Jan,...,Dec mideye-to-fork MEF figures): first three degrees Fahrenheit °F minute (angular) ' letters hour (spell out for 24-hour h multiplied by x clock) number (before a # (e.g., #10) number) not significant NS minute min pounds (after a # (e.g., 10#) null hypothesis HO second s number) percent % Spell out year, month, and week. registered trademark â probability P trademark ä probability of a type I a Physics and chemistry United States U.S. error (rejection of all atomic symbols (adjective) the null hypothesis when true) alternating current AC United States of USA ampere A America (noun) probability of a type II b error (acceptance of calorie cal U.S. state and District use two-letter the null hypothesis direct current DC of Columbia abbreviations when false) hertz Hz abbreviations (e.g., AK, DC) second (angular) " horsepower hp standard deviation SD hydrogen ion activity pH standard error SE parts per million ppm standard length SL parts per thousand ppt, total length TL ‰ variance Var volts V watts W FISHERY DATA SERIES NO. 01-8 PARTICIPATION, CATCH, AND HARVEST IN ALASKA SPORT FISHERIES DURING 1999 by Allen L. Howe, Robert J. Walker, Cynthia Olnes, Kathrin Sundet, and Allen E. Bingham Division of Sport Fish, Anchorage Alaska Department of Fish and Game Division of Sport Fish, Research and Technical Services 333 Raspberry Road, Anchorage, Alaska, 99518-1599 June 2001 This investigation was partially financed by the Federal Aid in Sport Fish Restoration Act (16 U.S.C. 777-777K) under Project F-10-15, Job No. RT-1. The Fishery Data Series was established in 1987 for the publication of technically-oriented results for a single project or group of closely related projects. Fishery Data Series reports are intended for fishery and other technical professionals. Fishery Data Series reports are available through the Alaska State Library and on the Internet: http://www.sf.adfg.state.ak.us/statewide/divreports/html/intersearch.cfm This publication has undergone editorial and peer review. A. L. Howe, R. J. Walker, C. Olnes, K. Sundet, and A. E. Bingham Alaska Department of Fish and Game, Division of Sport Fish, Research and Technical Services 333 Raspberry Road, Anchorage, AK 99518-1599, USA This document should be cited as: Howe, A. L., R. J. Walker, C. Olnes, K. Sundet, and A. E. Bingham. 2001. Participation, Catch, and Harvest in Alaska sport fisheries during 1999. Alaska Department of Fish and Game, Fishery Data Series No. 01-8, Anchorage. The Alaska Department of Fish and Game administers all programs and activities free from discrimination based on race, color, national origin, age, sex, religion, marital status, pregnancy, parenthood, or disability. The department administers all programs and activities in compliance with Title VI of the Civil Rights Act of 1964, Section 504 of the Rehabilitation Act of 1973, Title II of the Americans with Disabilities Act of 1990, the Age Discrimination Act of 1975, and Title IX of the Education Amendments of 1972. If you believe you have been discriminated against in any program, activity, or facility, or if you desire further information please write to ADF&G, P.O. Box 25526, Juneau, AK 99802-5526; U.S. Fish and Wildlife Service, 4040 N. Fairfax Drive, Suite 300 Webb, Arlington, VA 22203; or O.E.O., U.S. Department of the Interior, Washington DC 20240. For information on alternative formats for this and other department publications, please contact the department ADA Coordinator at (voice) 907-465-4120, (TDD) 907-465-3646, or (FAX) 907-465-2440. PREFACE Late in 1999 project staff determined that computer programs used to process data from this study and produce estimates for 1995 through 1997 contained errors. These errors altered some angler’s reported catch and harvest. The errors did not affect all species or fishing locations in the same way; thus some estimates were too high, while others were too low. In addition, when generating estimates for angler-days fished and household trips the computer programs did not properly account for anglers who did not respond to the survey. This error resulted in estimated days-fished and household trips that were too high for 1995 through 1997. The division’s technical staff also determined during review of the effect of the above errors that the approach used to account for anglers who did not respond should also be adjusted to reflect the approach published in current scientific literature. This adjustment would affect some 1995-1997 estimates and some 1998 estimates. The 1996 through 1998 estimates have been revised. We are unable to retrieve the raw 1995 data due to a faulty data tape and thus those estimates cannot be adjusted. Statewide and regional comparisons of original and revised estimates are included in the Discussion section of this report. The recomputed 1996 through 1998 estimates are also included in summary tables in this report. The more detailed recomputed estimates will be published in revised editions of Fishery Data Series Nos. 99-41, 98-25, and 97-29. Summaries of sport fish survey results, including revised 1996 through 1998 estimates, are available on the Internet at: http://www.sf.adfg.state.ak.us/statewide/participationandharvest/html/index.cfm The division has a commitment to producing the best information possible for making make management decisions about Alaska’s recreational fisheries and we strive to improve our studies each year. We regret that these errors occurred, have taken steps to avoid such problems in the future, and have committed resources to correct estimates where possible. In light of the above, anyone who has used 1996 through 1998 estimates from the Statewide Harvest Survey project may wish to review the changes that have resulted from these recalculations. i TABLE OF CONTENTS Page PREFACE.............................................................................................................................................................................................i ABSTRACT .......................................................................................................................................................................................1 INTRODUCTION ..............................................................................................................................................................................1 METHODS .........................................................................................................................................................................................1 Sample Selection................................................................................................................................................................................1 Data Collection ..................................................................................................................................................................................2 Computer-Based Editing ..................................................................................................................................................................2 Editing Review Procedures ..............................................................................................................................................................6 Summary Reports ..............................................................................................................................................................................7
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