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Status of Steelhead in Alaska

Status of Steelhead in Alaska. Brian Marston Area Fisheries Biologist Alaska Department of Fish and Game Division of Sport Fisheries, Yakutat, Alaska. Presentation Topics. Monitoring Data Concerns and conclusions. Distribution Fisheries. Stock Status Assessment. Snorkel surveys

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Status of Steelhead in Alaska

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  1. Status of Steelhead in Alaska Brian Marston Area Fisheries Biologist Alaska Department of Fish and Game Division of Sport Fisheries, Yakutat, Alaska

  2. Presentation Topics • Monitoring Data • Concerns and conclusions • Distribution • Fisheries

  3. Stock Status Assessment • Snorkel surveys • Weir counts of kelts and or adults upstream • Scale pattern ageing; PIT tags • Length sampling • DST and Blood samples

  4. Southeast Alaska Steelhead Snorkel Survey Index Streams

  5. Weir Counts

  6. Situk River Weir Counts – Southeast Alaska

  7. Sashin Creek Weir Counts – Southeast Alaska

  8. Ratz Creek Weir Counts – Southeast Alaska

  9. Karluk Weir Counts – Kodiak Area

  10. Litnik Weir Counts – Kodiak Area

  11. Ayakulik Weir Counts – Kodiak Area

  12. Types of fishery harvest • Sport Fish • Subsistence • Commercial – non target

  13. Sport Fishery Regulations • Southcentral Alaska • Harvest Limit: 1 per day, 2 annually (> 20 inches) • Spawning area closures • Winter closures • Kodiak Road Zone: C&R • Trout: 2 per day (11-16) in combination with cutthroat • Upper Copper River • 2 per day, 1 > 20 in. • Catch and release • Spawning closures • Southeast Alaska • Harvest Limit: 1 per day, • 2 annually (> 36 inches) • Catch and release • Spawning area closures • Trout: 2 per day (11-22) in combination with cutthroat

  14. Statewide Catch Survey; Angling Catch

  15. Statewide Harvest Survey; Angling Harvest

  16. Subsistence Harvest ADF&G (1997) Harvest Estimates for Craig, Hydaburg, and Klawock

  17. Directed Harvest Prohibited Commercial Steelhead Harvest in Southeast Alaska

  18. Scale Pattern Analysis

  19. Scale pattern analysis of saltwater growth, Situk River : University of Alaska • Blood samples : University of Idaho • Data storage tags for salt water movement patterns, Situk River : University of Norway

  20. Management Issues: • Habitat Degradation • Roads • Hydroelectric Projects • Timber Harvest Management • Undocumented harvest in commercial and subsistence fisheries • Angler expectation management • :what is a steelhead sport fishery?

  21. Future management directions • Stock status data needed • Continue long term datasets • Survey unknown streams • Preemptive Management • Trout management plan • Protection of habitat and species interactions • Maintain size and age attributes • Emphasize importance of fishery

  22. Conclusion: • Current conservative regulations provide for sustainability of steelhead stocks while allowing for a productive sport fishery. • Harvests remain low. • Size attributes remain within normal variation where assessed. • Current abundances of steelhead in the assessed streams of Alaska appear to be within normal variation • SE streams have remained near average, while SC streams have been more variable but experienced recent above average counts . • Sustainable fisheries, habitat conservation, and maintenance of current stock attributes remains the primary focus.

  23. Questions? Acknowledgements; Kelly Piazza, Mike Wood, Douglas Fleming, Troy Tydingco, Patrick Fowler, Dan Teske, Brian Glynn, Richard Chappell, Chet Woods, Steve McCurdy, Donn Tracy, Rodger Harding, Carol Coyle, David Love and Patrick McCormick brian.marston@alaska.gov

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