Data and Programs for the Transboundary Stikine, Taku And
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Report to the Pacific Salmon Commission Data and Progams for the Transboundary Stildne, Taku, and Alsek Rivers Needed to Imp1ement the Padfic Salmon Treaty Regional Informational Report. 1J89-09 Alaska Department of Fish and Game Division of Commercial Fisheries Juneau, Alaska April 1989 DATA AND PROGRAMS FOR THE TRANSBOUNDARY STKINE, TAKU AND ALSEK RNERS NEEDED TO IMPLEMENT THE PACIFIC SALMON TREATY Scott Marshall, NO- Jean Sands, Andy McGregor and Kathleen Jensen Regional Informational Report No.' 1J89-09 Alaska Department of Fish and Game Commercial Fisheries Division Juneau, Alaska April 1989 ' The Regional Infomtiun Report Series was established in 1987 to provide an information access system for all unpublished divisional repmb. These frequen2 serve diveme ad ha informational purposes or archive basic uniterpreted data. To accdte timely pgof men y collected ormation, rb in this aes und only limited internal review and may cmtah gehmnary data; +is -ban may be ~ently,f+Ji~edzpubkd in the formai?f%rature. Consequently, these repoiis should not oted nnthout pnor approval of the author or e Bvmon of C-adal Pie. FOREWORD This report presents a research plan that is based on activities of the Transboundary Technical Committee and the res onsible management agencies. The authors have all been active in' the work of the Transbounf ary Technical Committee, the senior author being the U.S. section chair of that committee. The authors are also emplo ed by the Alaska Department of Fish and Game, and as such department policies are reflected. &e re rt takes into consideration bi.lateral actions and discussions but has not been reviewed before uubEtion bv the Canadian don. This work was rted with U.S.-Canada Pacific Salmon heaty funds,' under Cooperative Agreement NA-88- As'T??' -00045. TABLE OF CONTENTS &gg LISTOFTABLES ...................................................... v LISTOFFIGURES ....................................................... vi ABSTRACT ..........................................................viii INTRODUCTION ...................................................... 1 CHAITER 1 IDENTIFICATION OF INFORMATION NEEDS .......................... 2 Abstract .................................................. 2 Commentary ........................................ 2 Article III .General Principles ........................................ 2 Abstract ................................................. 2 Cammentary ............................................... 3 Article IV - Conduct of Hsheries ....................................... 3 Abstract ................................................. 3 Commentary ........................................ 3 Abstract .................................................. 4 Commentary ........................................... 4 Article W .Transboundary Rivers ..................................... 4 Abstract ................................................. 4 Commentary ............................................. 4 Abstract .................................................. Commentary .............................................. Abstract ................................................. Cammentary .............................................. Overview ................................................ Abstract ................................................ Commentary .............................................. Abstract ................................................. Commentary .............................................. TABLE OF CONTENTS (Continued) Understanding Concerning Joint Enhansement. FebFuary 1988 D .................... 7 .. Abstract ............. 7 .................................... j Understanding Concerning Joint Jhhancement. February 1989 ..................... 7 ' .. Abstract .................................................. 7 I: CHAFER 2 REVIEW OF PREVIOUS PLANNING Am........................ 8 Transboundary Technical Committee ~ctihties............................... 8 Catch Accounting .................... ... ........... ...... 12 Escapement Estimation ........................................ 12 . EscapementGoals ........................................... 12 ReseasonForeeasting ......................................... 12 FIsheriesManaganent .............................................. 13 In-season Run Recanstrustion .................................... 13 In~sslaTACForecasting...................................... 13 F1shingPowerAmlysis ........................................ 13 Joint or Shared Data Bases ..................................... 14 JointAssessrnent ........................................... 14 On-lineAccess .............................................. 14 Enhancement ................................................. 14 Existin Facilities Documentation ................................. 14 ~easi&~~tudies........................................... 14 Monitor duction from Joint Projects ............................. 14 CHAPTER4 PROGRAMSYNOPSIS ......................................... IS Sockeye .............................................. 15 Chinook ............................................. 16 TABLE OF CONTENTS (Continued) Coho ...............................................16 Chum ............................................. 16 Pink ........................................ 16 Steelhead ............................................ 16 Escapement Estirnaticm and Goals ................................. 17 Sockeye .............................................. 17 Chinook ............................................. 17 Coho ............................................... 17 Chum .............................................. 17 Pink ............................................... 18 Steelhead ............................................ 18 Sockeye ............................................. 18 Chinook ............................................. 19 Coho ............................................... 19 ChumandPink ....................................... 19 Information Management ........................................ Enhancement ............................................... TakuRiver ...................................................... Sockeye ............................................... Chinook ............................................. Coho ................................................ Chum .............................................. Pink ............................................... Steelhead ............................................ Escapement Estimation and Goals ................................ Inriver Adult Mark-Recapture Program ....................... Sockeye ............................................. Qzinook ............................................. Coho ............................................... Chum .............................................. Pink ............................................... Steelhead ............................................ Sockeye ............................................. chinook ............................................. Coho ............................................... Chumandpink ....................................... Information Management ....................................... Enhancement ............................................... TABLE OF CONTENTS (Continued) Page AlsekRiver ..................................................... 26 Catch Accaunhg ................................em.........,26 Sockeye .............................................. 26 -...................................-.,......a. 27 Coho ............................................... 27 ehumandPink ....................................... 27 Seead ............................................ 27 Escapement Estimation and Goals ................................. 27 Sockeye ............................................. 28 mook ............................................. 28 OtherSgecies ......................................... 28 Sockeye ............................................. 29 OtherSpedes ......................................... 29 CHAPTER 5 EVALUATION OF FRXRBM NEEDS .............................. 30 StikineRiver ....................................................30 TakuRiver ...................................................... 30 LIST OF TABLES Page 1. Status of Stikine River salmon research and management programs in1989. .......................................................36 2. Status of Taku River salmon research and management programs in1989 ......................................................... 37 3. Status of Alsek River salmon research and management programs in1989 ........................................................ 38 4. Highly prioritized programs for filling gaps in information for the transboundary rivers with suggested study methods and estimated annual program costs ....................................... 39 LIST OF FIGURES Fipure Page I. Southeast Alaska, northwest British Coluinbia and the transboundary Stikne, Taku and Alsek Rivers ........................................ 40 2. The Stikine River, major lxibubries and fishery areas ......................... 41 3. SiAcine Ever and potentid sites for enhamemart .................... ; ....... 42 4. Sock e salmon catches for District 106, District 1U8, and al% GrnaL inriver Stikine fisheries and Stikine sockye escapements for1979-1988 .................................................... 43 5. Catches of chinook, coho, pmk, and chum salmon in all Canadian inriver Stikine fisheries