作者: Morgan H. Bond , Peter A. H. Westley , Andrew H. Dittman , Dean Holecek , Tiffani Marsh
DOI: 10.1080/00028487.2016.1235614
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摘要: AbstractHoming and straying in salmon have been extensively studied, yet it has proven difficult to disentangle the biotic abiotic factors that influence straying. In Columbia River basin, some juvenile are collected at dams transported downstream increase survival during seaward migration, as returning adults they experience a range of environmental conditions ascend river. We examined 8 years PIT tag detection data for hatchery-reared, fall-run Chinook Salmon Oncorhynchus tshawytscha released Snake evaluate combined effects barging, rearing release locations, on adult migration speed below above River–Snake confluence. Straying upper was 10–19 times more likely among were barged juveniles from than in-river migrants or McNary Dam (below confluence) juveni...