Pacific Salmon Explorer

Pacific Salmon Explorer

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Trends in Spawner Abundance

This assessment provides information on the trends in estimated spawner abundance over the long term (all years of data) and short term (most recent three generations) for the selected Conservation Unit(s). Linear trends are estimated on a natural log scale from smoothed spawner abundance time series.

Average spawner abundance per generation
Long-term trend (all years)
Short-term trend (most recent three generations)

Individual Conservation Units (20)

Big Salmon

Long-term trend: -38.1% change over all years

Middle Yukon

Long-term trend: -25.5% change over all years

Middle Yukon

Long-term trend: -82.3% change over all years

Nordenskiold

Long-term trend: -18.3% change over all years

North Yukon

Long-term trend: -95% change over all years

Northern Yukon

Long-term trend: -74.3% change over all years

Old Crow

Long-term trend: -83.1% change over all years

Pelly

Long-term trend: -51% change over all years

Porcupine

Long-term trend: -83.1% change over all years

Porcupine

Long-term trend: -84.4% change over all years

Stewart

Long-term trend: -51.2% change over all years

Teslin

Long-term trend: -71.1% change over all years

Teslin

Long-term trend: -41.9% change over all years

Upper Yukon

Long-term trend: -30.6% change over all years

White

Long-term trend: -53.5% change over all years

White

Long-term trend: -88.8% change over all years

Donjek Kluane

Porcupine

Salmon Fork

Stewart