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 (68)

Alastair

Long-term trend: 75.6% change over all years

Asitika

Long-term trend: 516.5% change over all years

Azuklotz

Long-term trend: 454.1% change over all years

Babine (enhanced)

Long-term trend: 150.8% change over all years

Babine/Onerka

Long-term trend: -58.5% change over all years

Bear

Long-term trend: 485.5% change over all years

Bulkley

Long-term trend: 38.9% change over all years

Damshilgwit

Long-term trend: 10.8% change over all years

Ecstall

Long-term trend: -78.7% change over all years

Gitanyow (Kitwanga/Kitwancool)

Long-term trend: 435% change over all years

Hecate Strait Mainland

Long-term trend: -80.8% change over all years

Johanson

Long-term trend: 113.1% change over all years

Johnston

Long-term trend: -6.7% change over all years

Kalum-Early

Long-term trend: 11.8% change over all years

Kalum-Late

Long-term trend: -27.5% change over all years

Kitsumkalum

Long-term trend: 3,386% change over all years

Lakelse

Long-term trend: -36.4% change over all years

Lower Skeena

Long-term trend: -77.7% change over all years

Lower Skeena

Long-term trend: -40.1% change over all years

Lower Skeena

Long-term trend: -63.4% change over all years

Lower Skeena River (odd)

Long-term trend: -7.2% change over all years

Mcdonell/Dennis/Aldrich

Long-term trend: 181.8% change over all years

Middle Skeena

Long-term trend: -17.2% change over all years

Middle Skeena

Long-term trend: 134.2% change over all years

Middle Skeena-Large Lakes

Long-term trend: -55.3% change over all years

Middle Skeena-Mainstem Tributaries

Long-term trend: -44.9% change over all years

Middle-Upper Skeena (even)

Long-term trend: 9% change over all years

Middle-Upper Skeena (odd)

Long-term trend: 83.4% change over all years

Morice

Long-term trend: 38.9% change over all years

Morice/Atna

Long-term trend: 737% change over all years

Motase

Long-term trend: -40.3% change over all years

Nass-Skeena Estuary (even)

Long-term trend: 25.7% change over all years

Nass-Skeena Estuary (odd)

Long-term trend: 420.8% change over all years

Nilkitkwa

Long-term trend: -71.7% change over all years

Prudhomme

Long-term trend: -63.8% change over all years

Shawatlan

Long-term trend: -0.9% change over all years

Skeena Estuary

Long-term trend: -84.8% change over all years

Skeena Estuary

Long-term trend: -80.2% change over all years

Skeena River-High Interior (river-type)

Long-term trend: 253.1% change over all years

Stephens

Long-term trend: 117.5% change over all years

Sustut

Long-term trend: 773.2% change over all years

Tahlo/Morrison

Long-term trend: 13.7% change over all years

Upper Bulkley River

Long-term trend: 541.6% change over all years

Upper Skeena

Long-term trend: -53.8% change over all years

Upper Skeena

Long-term trend: 37.1% change over all years

Upper Sustut

Long-term trend: -32.8% change over all years

Zymoetz

Long-term trend: -28.2% change over all years

Babine

Bulkley/Maxan

Ecstall/Lower

Footsore/Hodder

Kispiox

Kluatantan

Kluayaz

Lakelse

Middle Skeena

Northern Coastal Streams (river-type)

Sicintine

Skeena Coastal Summers

Skeena Coastal Winters

Skeena Estuary

Skeena River (river-type)

Slamgeesh

Spawning

Suskwa

Upper Skeena

Upper Skeena

Upper Skeena Headwaters

Northern Transboundary

Vancouver Isl. & Mainland Inlets

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