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Genetic Population Structure of Snake River Basin Steelhead in Idaho Dr. Jennifer L. Nielsen 1 Robert Valenzula 1 Talia Wiacek 1 Alan Byrne 2 Sara Graziano.

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Presentation on theme: "Genetic Population Structure of Snake River Basin Steelhead in Idaho Dr. Jennifer L. Nielsen 1 Robert Valenzula 1 Talia Wiacek 1 Alan Byrne 2 Sara Graziano."— Presentation transcript:

1 Genetic Population Structure of Snake River Basin Steelhead in Idaho Dr. Jennifer L. Nielsen 1 Robert Valenzula 1 Talia Wiacek 1 Alan Byrne 2 Sara Graziano 1 1 USGS Alaska Science Center Anchorage, Alaska 2 Idaho Department of Fish and Game Nampa, Idaho

2 Collection Protocols All samples from juveniles. Collected in 2000. Most were collected fly-fishing in July and August. Length range was 90 – 200mm. Fish > age 1. Collected at several locations over a 2 – 4 km section. Screw traps used in the Pahsimeroi, Lehmi, Red, and SF Salmon River at Knox Bridge. Hatchery stocks collected at rearing facilities in September. All hatchery fish were age 0. Several streams were not sampled because of hatchery adult outplants in 1999. Interim report contains 5 hatchery and 31 wild stocks. There are 43 additional wild stocks left to analyze.

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4 Inland Dworshak N. Oregon Washington S. Oregon California

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