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Integrated Brood Stock Production Logistics: NOR Fish Collection & Coordination

This production meeting in 2011 focuses on the collection of natural-origin adult summer Chinook from the South Fork Salmon River for brood stock production, addressing logistics, coordination, and techniques. The session covers issues and concepts related to capturing NOR fish, collecting milt, transporting fish, and coordination with IDFG Research and NPT teams for data recording and genetic tracking. Practical methods like whirl Pac bags, air pumping, and single male-female crosses are discussed, along with spawn data and eyed egg results. The presentation highlights IBS production numbers and the integration of NOR and hatchery production, marked as "unclipped CWT only" for identification.

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Integrated Brood Stock Production Logistics: NOR Fish Collection & Coordination

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  1. LSRCP Production Meeting 2011 • Re:RY2010 Natural origin adult summer Chinook collection for integrated brood stock production for U.S. v. Oregon

  2. ADULT COLLECTION : HOW TO? LOGISTICS & COORDINATION • Collection issues & concepts for capturing natural origin fish (NOR) from the south fork salmon river for IBS production up to 250K smolt • Collect & pond NOR adults @ weir; ISS impact • Collect M & F NOR fish below weir on spawning grounds & transport to holding ponds; practicality & logistics issues • Collect milt from NOR males during trapping and cross with hatchery females • Collect milt from ripe NOR males day of and day before egg take • Coordination & Record Keeping • IDFG Research (Laurie Janssen & crew) and NPT (Rob Hill & Carl East) assisted with data recording (trapping db) and milt collection • Used genetic ID to track male milt to spawn x w/ hatchery female

  3. TECHNIQUES & METHODS • Same day & day before spawn take milt collection • Ripe NOR male milt collected, fish passed above weir • Whirl Pac bags were used for collection & labeled w/ genetic ID number • Milt placed in coolers and/or refrigerated if collected the day before egg take • Foot pump was used to add air to the bags to allow the sperm to respire • Paper towel was used to dry the area around the vent • Each NOR male crossed with a single hatchery female • Incubated in trays as singles • No IBS eggs were culled due to high BKD; 381K green collected

  4. SPAWN DATA & EYED EGG RESULTS • 77 NOR males (x w/ 72 hatchery females) used out of 347 trapped during spawning operations • Natural origin males w/ PITs (7) • 3 “Wild” & 4 “Unknown” origin • Same day vs. day before egg take milt collection: IBS eye % • Same day = 88 % • Day before = 69 % • Overall IBS eye % vs. overall hatchery prod eye % • Overall IBS eye % = 77.5 % • Overall hatchery production eye % = 90 %

  5. IBS Prod Numbers • 264,000 BY2010 IBS fry on station • Approx 22K excess IBS production mixed w/ 70K hatchery production • All IBS production will be marked as “unclipped CWT only”

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