The Coded-Wire Tag Program: Regional Overview - PowerPoint PPT Presentation

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The Coded-Wire Tag Program: Regional Overview

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  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 NWPPC’s 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. NMT’s ‘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 CWT’ed Fish

  17. Washington’s Coastal and Columbia River Hatcheries(excluding southern Puget Sound)

  18. Scale of CWT Tagging Programin the Columbia Basin • 18-20 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 ProgramBPA Project 198201301 • 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: ODFW’s Clackamas Tag Recovery Lab • Data management: PSMFC’s 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. Columbia River Commercial Catch Flowchart for Columbia River CWT Recovery Programs CWT Sampling (ODFW, WDFW, USFWS, NMFS) ODFW Fish Tickets WDFW Fish Tickets Snouts Taken Sampling Data ODFW Biometrics Section Data Processing & Validation ODFW Head Lab Regional Mark Processing Center Other Agencies

  26. ODFW Clackamas Tag Recovery Lab

  27. ODFW Tag Recovery LabClackamas, Oregon • Extract and decode CWTs from fish heads recovered in the sampled fisheries, etc. • Verify and report CWT tag data to ODFW’s data management and to PSMFC’s Regional Mark Information System (RMIS)

  28. Number of Heads Processed by ODFW’s Tag Recovery Lab during 2003 -2005

  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. 2005 work covered 2002-2005 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 R M I S COAST - WIDE DATA USERS Errors VALIDATION PROCESS PSC format raw data Release Recovery Catch/sample Location codes Data description RMIS Reports: Detail Summary Ad - hoc ALL COAST - WIDE TAGGING & RECOVERY AGENCIES RMPC validated data REGIONAL MARK INFORMATION SYSTEM (R M I S) PSC format valid data C A N A D A

  39. New RMIS Web Pages