Identification of leading threats to sockeye salmon populations.

1Additional input provided by resource agency staff, particularly for populations 70–88 in the Fraser River basin.
2Uplift from the 1964 earthquake disturbed much of this region, resulting in isostatic glacial rebound that has been recognized as a factor in reduced sockeye escapement, thus some changes to freshwater habitat are not related to human intervention.
3Hatchery program on Hugh Smith Lake was terminated in 2003.
A list of near threatened and threatened populations of sockeye salmon with identification of key threats specific to each. The sources of information used to identify threats are provided in the final column. Based on information provided by fishery management agencies, fishing pressure on some populations have been intentionally reduced in recent years to encourage recovery (indicated with “X, declining” in the Biological Resource Use column). H = Hatchery, SC = Artificial spawning channel.