v Oregon Technical Advisory Committee (TAC) downgraded the forecast for A-index summer steelhead from an already low preseason estimate of 89,200 to an in-season estimate of 35,000. 16 and 23, fisheries scientists from the U.S. Within this run are ESA-listed wild summer steelhead destined for the Upper Columbia and Snake rivers, as well as several mid-Columbia tributaries. This continues a pattern of several years of low returns for many populations and comes during a period when flows throughout the basin are generally low because of drought. ![]() 26 are the lowest since counts began in 1938. Passage counts of summer steelhead at Bonneville Dam from July 1 through Aug. SALEM, Ore.-In response to extremely low returns to date of Columbia Basin upriver summer steelhead, ODFW is adopting additional emergency rules to increase protections for wild summer steelhead in certain Oregon Columbia River tributaries.
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