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Page count: 139

Five species of Pacific salmon (Oncorhynchus spp.) were radio-tagged and tracked in the mainstem Susitna River in 2012 as part of a multi-objective study to describe salmon migration behavior, identify salmon spawning locations, and evaluate techniques for future studies of salmon in turbid water. The study was conducted to support the licensing process for the proposed Susitna-Watana Hydroelectric Project. The study design allowed for comparisons to salmon distribution and habitat use in the 1980s, when similar studies were conducted for the Alaska Power Authority Hydroelectric Project. The 2012 study focused on the mainstem Susitna River due to possible effects both above and below the Project dam site where the river was separated into lower (river mile [RM] 0-98), middle (RM 98-184), and upper (upstream of RM-184) river segments.