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The Coded-Wire Tag Program: Regional Overview. Coded Wire Tags: Tiny Tool for Stock Identification –Stainless steel micro-tag –Introduced in late 1960s.

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Presentation on theme: "The Coded-Wire Tag Program: Regional Overview. Coded Wire Tags: Tiny Tool for Stock Identification –Stainless steel micro-tag –Introduced in late 1960s."— Presentation transcript:

1 The Coded-Wire Tag Program: Regional Overview

2 Coded Wire Tags: Tiny Tool for Stock Identification –Stainless steel micro-tag –Introduced in late 1960s –Replaced fin clips for stock id –Placed in nasal cartilage –Originally binary coding scheme –Adipose clip used ~ 3 decades as external flag for tagged fish –Present: Use of electronic detection: Ad clip now flag for hatchery fish

3 Major Advantages of CWTs –Small size (0.25 x 1.1 mm) –Ease of application –Very low tag loss –Vast number of codes –Low cost (14 cents/tag applied) –Biological compatibility –Very minimal impact on survival

4 Format of New Decimal CWTs (Laser Etched)

5 CWT Quality Today Tag 16/58/09 made 11 April 2002

6 Types of CWT Marking Studies 1) Management Objectives –Stock contribution (fisheries viewpoint); Harvest allocation; Survival trends; Escapement 2) Hatchery and Wildstock Evaluation –Stock contribution to the various fisheries coastwide; Straying; Age composition, etc. 3) Experimental Comparisons –Diets, release sites, time of release, density, etc 4) Habitat Evaluation

7 Relevance of CWT Information to the NWPPCs Fish & Wildlife Program The CWT is the stock ID tool used coastwide for evaluating survival rates and status of salmonid stocks. It serves a wide variety of F&W Program purposes, including: –Hatchery monitoring and evaluation –Adult and juvenile migration patterns –Evaluate and monitor harvest Coastwide harvest management closely intertwined with the mission of the F&W Program; and is critical to protecting Columbia River stocks in trouble. Federal ESA depends on CWT marked hatchery fish as indicators for wild listed stocks.

8 CWT Tagging Programs

9 Tagging Trailer in Action at Hatchery

10 Tagging Crew at work removing adipose fin and inserting CWT into the snouts of smolts

11 NMTs AutoFish System Marking Trailers, with Fish Guidance Trays

12 Volitional Entry of Juvenile Fish into the Auto Clipping and Marking System

13 AutoFish System with View of Tagging Machines (blue units)

14 Scale of Coastwide CWT Tagging Program 50 million tagged smolts released coastwide each year at a cost of ~$7.5 million Over 1,200 new codes involving hundreds of studies Chinook tagging levels are highest at 39 million; Coho levels at 9-10 million 54 federal, state and tribal fisheries agencies plus private entities now tag fish

15 Principal Tagging Facilities Tagging programs are carried out at over 330 federal, state, tribal, and private hatcheries and rearing facilities on the west coast, including Canada Wild stocks also captured and tagged at numerous sites

16 Oregon Facilities Releasing CWTed Fish

17 Washingtons Coastal and Columbia River Hatcheries (excluding southern Puget Sound)

18 Scale of CWT Tagging Program in the Columbia Basin million of the 50 million chinook and coho tagged annually come from the Columbia Basin Of those, ~6-7 million tags were directly funded by BPA in 2003 On a coastwide basis, BPA funds an estimated 13% of the 50 million tags released annually

19 BPA Funded CWT Tagging Programs in the Columbia Basin Prior to 1989, many hatcheries released chinook and coho without tagged groups In 1989 BPA began to fund tagging the Missing Production groups at ODFW, WDFW and USFWS hatcheries In 2000, projects renamed Annual Stock Assessment - CWT to avoid former confusing name

20 CWT Recovery Programs

21 CWT Recovery Program BPA Project Ongoing data collection/management program Five component projects: ODFW, WDFW, PSMFC Tag Recovery Sampling Programs – Columbia Basin sport and commercial fisheries jointly sampled by ODFW and WDFW Buoy 10 to Priest Rapids Dam (397 miles) – Oregon ocean fisheries (commercial and sport) by ODFW (~1/4 cost of sampling funded by BPA) Tag Extraction: ODFWs Clackamas Tag Recovery Lab Data management: PSMFCs Mark Center Combined 2005 Funding Level: $2,028,757

22 Commercial Harvest Zones Below McNary Dam

23 Sport Fisheries Sampling Sections Below Bonneville Dam

24 Oregon Ports and Ocean Management Areas for Salmon Fisheries

25 Flowchart for Columbia River CWT Recovery Programs Columbia River Commercial Catch CWT Sampling (ODFW, WDFW, USFWS, NMFS) ODFW Fish Tickets WDFW Fish Tickets Snouts Taken Sampling Data ODFW Head Lab ODFW Biometrics Section Data Processing & Validation Regional Mark Processing Center Other Agencies

26 ODFW Clackamas Tag Recovery Lab

27 ODFW Tag Recovery Lab Clackamas, Oregon Extract and decode CWTs from fish heads recovered in the sampled fisheries, etc. Verify and report CWT tag data to ODFWs data management and to PSMFCs Regional Mark Information System (RMIS)

28 Number of Heads Processed by ODFWs Tag Recovery Lab during Year Hatchery Returns River Sport Spawning Ground Comm. Gillnet Ocean Spt & TrollTotals ,5272,3831,0068,7939,71034, ,5002,8181,5345,83111,93537, ,1531, ,8096,80144,122

29 Sampled Heads Brought into the Lab in Frozen and/or Formaldehye Soaked

30 Halving the Head, Cut by Cut, Until the CWT is Found

31 Checking Halved Samples to Isolate the CWT

32 Final Phase of Recovering Tag

33 Reading the Tag Code under a Microscope

34 Coding on Tag Easily Read on TV Monitor Screen

35 Ongoing Challenges for the Clackamas Tag Recovery Lab The processed heads represent samples taken from fisheries, spawning grounds, and hatchery rack returns over multiple years (e.g work covered samples) Level funding, staff reductions and large escapements have overwhelmed the capacity of the lab to keep abreast of the work. This has forced prioritizing CWT processing: –In-season management needs met first –Fishery evaluation needs met second –Hatchery returns typically met last unless specific needs exist

36 CWT Data Management

37 The Regional Mark Information System (RMIS) CWT data are forwarded to the Mark Center where it is loaded and validated against an extensive set of checks Once validated, the data are moved into an online relational database (Oracle) that the public can access by Internet Data is accessible in either PSC exchange format, or various summary reports

38 Data Flowchart for the RMPC REGIONAL MARK PROCESSING CENTER VALIDATION PROCESS REGIONAL MARK INFORMATION SYSTEM (R M I S) ALL COAST - WIDE TAGGING & RECOVERY AGENCIES R M I S COAST - WIDE DATA USERS C A N A D A PSC format raw data Release Recovery Catch/sample Location codes Data description Errors RMPC validated data RMIS Reports: Detail Summary Ad - hoc PSC format valid data

39 New RMIS Web Pages








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