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Transportation of juvenile salmonids on the Columbia and Snake Rivers, 2004 : final report for 2002 steelhead juveniles with updates on other transport studies
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2005
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[PDF-10.80 MB]
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Description:Since 1999, the National Marine Fisheries Service has evaluated transportation of Snake River steelhead smolts. In 2001, we began transportation studies of subyearling fall Chinook salmon in the Snake River and at McNary Dam. Beginning in 2003, we also evaluated transportation of steelhead PIT-tagged at upper Columbia River hatcheries and transported from McNary Dam. Here we report transportation study activities during 2004, including adult recoveries of age-2-ocean wild steelhead, which complete the wild steelhead adult returns from the 2002 tagging year In 2002, we tagged only wild fish and released them either into the Lower Granite Dam tailrace or onto a barge at Lower Granite Dam. For this analysis, we used two transport groups: one transported from Lower Granite Dam (LGR-transport), and one from fish collected and transported from Little Goose Dam (LGS-transport). These groups were compared with an inriver migrant group, which excluded any fish detected at Little Goose or Lower Monumental Dam.
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Rights Information:CC0 Public Domain
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Compliance:Library
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