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 (443)

Alastair

Long-term trend: 75.6% change over all years

Alsek

Long-term trend: -72.6% change over all years

Anderson-Seton-Early Summer

Long-term trend: 46.5% change over all years

Asitika

Long-term trend: 516.5% change over all years

Awun

Long-term trend: 558.3% 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

Backland

Long-term trend: -98.9% change over all years

Bear

Long-term trend: 485.5% change over all years

Bella Coola River-Late

Long-term trend: 163.4% change over all years

Bella Coola-Bentinck

Long-term trend: -41.6% change over all years

Bella Coola-Dean Rivers

Long-term trend: 65.4% change over all years

Bella Coola-Dean Rivers

Long-term trend: -53.7% change over all years

Bloomfield

Long-term trend: -8.1% change over all years

Boundary Bay (Fall 4-1)

Long-term trend: 86% change over all years

Bowron-Early Summer

Long-term trend: -88.7% change over all years

Bulkley

Long-term trend: 38.9% change over all years

Bute Inlet

Long-term trend: 141.5% change over all years

Canoona

Long-term trend: 533.2% change over all years

Chilko-Early Summer

Long-term trend: 517.5% change over all years

Chilko-Summer

Long-term trend: 104% change over all years

Chilliwack-Early Summer (cyclic)

Long-term trend: 8,058.4% change over all years

Cultus-Late

Long-term trend: -86.2% change over all years

Curtis Inlet

Long-term trend: -74.1% change over all years

Damdochax

Long-term trend: -13.1% change over all years

Damshilgwit

Long-term trend: 10.8% change over all years

Dean River

Long-term trend: 6.3% change over all years

Devon

Long-term trend: -13.8% change over all years

Docee

Long-term trend: -52.8% change over all years

Douglas Channel-Kitimat Arm

Long-term trend: 29% change over all years

Douglas-Gardner

Long-term trend: 0.3% change over all years

East Haida Gwaii

Long-term trend: -63.7% change over all years

East Haida Gwaii

Long-term trend: -33% change over all years

East Haida Gwaii (even)

Long-term trend: 17.2% change over all years

East Haida Gwaii (odd)

Long-term trend: -50.4% change over all years

East Howe Sound-Burrard Inlet (odd)

Long-term trend: -25.3% change over all years

East Vancouver Island Summer

Long-term trend: -53.6% change over all years

East Vancouver Island Winter

Long-term trend: -33.8% change over all years

East Vancouver Island-Cowichan and Koksilah (Fall x-1)

Long-term trend: -29.9% change over all years

East Vancouver Island-Georgia Strait (Summer 4-1)

Long-term trend: 16.7% change over all years

East Vancouver Island-Goldstream (Fall x-1)

Long-term trend: -97.3% change over all years

East Vancouver Island-Johnstone Strait (odd)

Long-term trend: 145.6% change over all years

East Vancouver Island-Nanaimo and Chemainus (Fall x-1)

Long-term trend: 60.6% change over all years

East Vancouver Island-North (Fall x-1)

Long-term trend: -43.8% change over all years

East Vancouver Island-Qualicum and Puntledge (Fall x-1)

Long-term trend: -15.1% change over all years

Ecstall

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

Evelyn

Long-term trend: -32.4% change over all years

Francois-Fraser-Summer

Long-term trend: 21.4% change over all years

Fraser Canyon

Long-term trend: -78.1% change over all years

Fraser Canyon-Nahatlatch (Spring 5-2)

Long-term trend: -75% change over all years

Fraser River (odd)

Long-term trend: 834% change over all years

Fred Wright

Long-term trend: -79.8% change over all years

Freeda

Long-term trend: 6.5% change over all years

Georgia Strait

Long-term trend: 125.9% change over all years

Georgia Strait (even)

Long-term trend: 638.6% change over all years

Georgia Strait (odd)

Long-term trend: 459.6% change over all years

Gitanyow (Kitwanga/Kitwancool)

Long-term trend: 435% change over all years

Great Central

Long-term trend: -18.4% change over all years

Haida Gwaii-Graham Island Lowlands

Long-term trend: -54.6% change over all years

Harrison River (river-type)

Long-term trend: 4,307.2% change over all years

Harrison-Downstream Migrating-Late

Long-term trend: 1,069.2% change over all years

Harrison-Upstream Migrating-Late

Long-term trend: -93.5% change over all years

Hartley Bay

Long-term trend: 19.8% change over all years

Hecate Lowlands

Long-term trend: -48.3% change over all years

Hecate Lowlands (even)

Long-term trend: -49.9% change over all years

Hecate Strait Mainland

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

Hecate Strait-Fjords (even)

Long-term trend: 9.8% change over all years

Hecate Strait-Fjords (odd)

Long-term trend: 236.1% change over all years

Hecate Strait-Lowlands (odd)

Long-term trend: 34.3% change over all years

Homathko-Klinaklini-Smith-Rivers-Bella Coola-Dean (odd)

Long-term trend: 550.8% change over all years

Howe Sound-Burrard Inlet

Long-term trend: 697.7% change over all years

Interior Fraser

Long-term trend: 50.6% change over all years

Johanson

Long-term trend: 113.1% change over all years

Johnston

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

Kadjusdis River

Long-term trend: -89.2% change over all years

Kainet Creek

Long-term trend: 331.4% 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

Kamloops-Early Summer

Long-term trend: 613.8% change over all years

Keecha

Long-term trend: 49.7% change over all years

King Salmon

Long-term trend: 1,478.6% change over all years

Kitlope

Long-term trend: -51.9% change over all years

Kitsumkalum

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

Klukshu

Long-term trend: -47% change over all years

Koeye

Long-term trend: 39.4% change over all years

Kooryet

Long-term trend: -5.7% change over all years

Kuthai

Long-term trend: -95.8% change over all years

Kwakwa Creek

Long-term trend: -21.2% change over all years

Lakelse

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

Lillooet-Harrison-Late

Long-term trend: -75.6% change over all years

Little Trapper

Long-term trend: -48% change over all years

Long

Long-term trend: -49.8% change over all years

Loughborough

Long-term trend: -49.6% change over all years

Lowe/Simpson/Weir

Long-term trend: -38.4% change over all years

Lower Fraser

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

Lower Fraser River (Fall 4-1)

Long-term trend: -5.7% change over all years

Lower Fraser River (Spring 5-2)

Long-term trend: 54.4% change over all years

Lower Fraser River (Summer 5-2)

Long-term trend: 45.6% change over all years

Lower Fraser River-Maria Slough (Summer 4-1)

Long-term trend: 266.4% change over all years

Lower Fraser River-Upper Pitt (Summer 5-2)

Long-term trend: -85.8% change over all years

Lower Nass

Long-term trend: -78.8% change over all years

Lower Nass

Long-term trend: 100% change over all years

Lower Nass-Portland (river-type)

Long-term trend: 1,248.8% 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

Lower Thompson

Long-term trend: 71.7% change over all years

Lower Thompson River (Spring 4-2)

Long-term trend: 26.4% change over all years

Marian/Eden

Long-term trend: -49.5% change over all years

Mary Cove Creek

Long-term trend: -92.7% change over all years

Mathers

Long-term trend: -87.1% change over all years

Mcdonell/Dennis/Aldrich

Long-term trend: 181.8% change over all years

Mercer

Long-term trend: -40.8% change over all years

Meziadin

Long-term trend: -23.1% change over all years

Mid Columbia Summer

Long-term trend: -84.9% change over all years

Mid Fraser Summer

Long-term trend: -90.5% change over all years

Middle Fraser River (Spring 5-2)

Long-term trend: -65.9% change over all years

Middle Fraser River (Summer 5-2)

Long-term trend: -19.2% change over all years

Middle Fraser River-Portage (Fall 5-2)

Long-term trend: -69.3% 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

Mikado

Long-term trend: 67% 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

Mussel-Kynoch

Long-term trend: -31.8% change over all years

Mussel-Kynoch

Long-term trend: -20.2% change over all years

Nadina-Francois-Early Summer

Long-term trend: 250.7% change over all years

Nahatlatch-Early Summer

Long-term trend: -6.8% change over all years

Nahwitti (odd)

Long-term trend: 9.5% change over all years

Namu

Long-term trend: -33.3% change over all years

Nass Summer

Long-term trend: 47.2% change over all years

Nass-Portland-Observatory (odd)

Long-term trend: 893.8% 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

Nesketahin

Long-term trend: -90.8% change over all years

Nilkitkwa

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

Nimpkish

Long-term trend: -46.9% change over all years

North & Central Coast-Early

Long-term trend: -24.4% change over all years

North & Central Coast-Late

Long-term trend: 191.8% change over all years

North Barriere-Early Summer (de novo)

Long-term trend: -71.5% change over all years

North Haida Gwaii

Long-term trend: -84.1% change over all years

North Haida Gwaii

Long-term trend: 370.9% change over all years

North Haida Gwaii (even)

Long-term trend: 84.9% change over all years

North Haida Gwaii-Stanley Creek

Long-term trend: -27.9% change over all years

North Thompson

Long-term trend: -41.5% change over all years

North Thompson River (Spring 5-2)

Long-term trend: -86.8% change over all years

North Thompson River (Summer 5-2)

Long-term trend: -49.5% change over all years

Northeast Vancouver Island

Long-term trend: -42.9% change over all years

Northern Coastal Fjords (river-type)

Long-term trend: -96.1% change over all years

Northern Coastal Streams

Long-term trend: -18% change over all years

Northwest Vancouver Island

Long-term trend: 89.5% change over all years

Okanagan

Long-term trend: 320.6% change over all years

Osoyoos

Long-term trend: 115.7% change over all years

Owikeno

Long-term trend: -79.4% change over all years

Pitt-Early Summer

Long-term trend: 100% change over all years

Port John

Long-term trend: -63.7% change over all years

Portland Canal-Observatory

Long-term trend: -37.6% change over all years

Portland Inlet

Long-term trend: -51.5% change over all years

Portland Sound-Observatory Inlet-Lower Nass

Long-term trend: 9.3% change over all years

Portland Sound-Observatory Inlet-Portland Canal

Long-term trend: -9% change over all years

Prudhomme

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

Quesnel-Summer (cyclic)

Long-term trend: 10.8% change over all years

Rivers Inlet

Long-term trend: -41.8% change over all years

Rivers Inlet

Long-term trend: 53% change over all years

Rivers Inlet

Long-term trend: 481.3% change over all years

Roderick

Long-term trend: -46.9% change over all years

Sakinaw

Long-term trend: -99.8% change over all years

Seton-Late (de novo)

Long-term trend: -91% change over all years

Shawatlan

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

Shuswap River (Summer 4-1)

Long-term trend: 158.2% change over all years

Shuswap-Early Summer (cyclic)

Long-term trend: -43.2% change over all years

Shuswap-Late (cyclic)

Long-term trend: -90.8% 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

Skidegate

Long-term trend: -39.6% change over all years

Skidegate

Long-term trend: -74% change over all years

Smith Inlet

Long-term trend: -45.5% change over all years

Smith Inlet

Long-term trend: 1,725.1% change over all years

South Thompson

Long-term trend: -32.4% change over all years

South Thompson River (Summer 4-1)

Long-term trend: 3,659.6% change over all years

South Thompson River (Summer 5-2)

Long-term trend: -5.6% change over all years

South Thompson River-Bessette Creek (Summer 4-2)

Long-term trend: -55.2% change over all years

South Thompson-Adams River Upper

Long-term trend: -15.8% change over all years

Southern Coastal Streams

Long-term trend: -96.6% change over all years

Southern Fjords (even)

Long-term trend: 139.5% change over all years

Southern Fjords (odd)

Long-term trend: -29.9% change over all years

Southern Mainland-Georgia Strait (Fall x-1)

Long-term trend: -21.3% change over all years

Southern Mainland-Southern Fjords (Fall x-1)

Long-term trend: 1,551.3% change over all years

Southwest & West Vancouver Island

Long-term trend: -25% change over all years

Spiller-Fitz-Hugh-Burke

Long-term trend: -38% change over all years

Sproat

Long-term trend: 84.7% 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

Tahltan

Long-term trend: -18.4% change over all years

Takla-Trembleur-Early Stuart (cyclic)

Long-term trend: -94.2% change over all years

Takla-Trembleur-Stuart-Summer (cyclic)

Long-term trend: 69.8% change over all years

Tankeeah River

Long-term trend: -43.5% change over all years

Taseko-Early Summer

Long-term trend: -22% change over all years

Tatsamenie

Long-term trend: 4% change over all years

Thompson Summer

Long-term trend: -84% change over all years

Tsimtack/Moore/Roger

Long-term trend: -49.6% change over all years

Upper Bulkley River

Long-term trend: 541.6% change over all years

Upper Fraser River (Spring 5-2)

Long-term trend: -48.2% change over all years

Upper Knight

Long-term trend: -96.7% change over all years

Upper Nass

Long-term trend: -46.8% change over all years

Upper Nass

Long-term trend: 135% change over all years

Upper Nass River (river-type)

Long-term trend: -58.8% 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

Wannock

Long-term trend: 26.4% change over all years

West Haida Gwaii

Long-term trend: -18.6% change over all years

West Haida Gwaii

Long-term trend: -56.4% change over all years

West Haida Gwaii (even)

Long-term trend: -83.4% change over all years

West Vancouver Island Summer

Long-term trend: -54.1% change over all years

West Vancouver Island-Nootka and Kyuquot (Fall x-1)

Long-term trend: 25.1% change over all years

West Vancouver Island-North (Fall x-1)

Long-term trend: -2.6% change over all years

West Vancouver Island-South (Fall x-1)

Long-term trend: -25.1% change over all years

Widgeon (river-type)

Long-term trend: -41% change over all years

Yakoun

Long-term trend: -72.1% change over all years

Yeo

Long-term trend: 17.7% change over all years

Zymoetz

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

Adams-Early Summer

Ain-Skundale-Ian

Alice

Alouette-Early Summer

Alsek

Alsek (river-type)

Alsek Summer

Babine

Banks

Blanchard

Bolton Creek

Bonilla

Border

Borrowman Creek

Boundary Bay

Boundary Bay Winter

Bowser

Bulkley/Maxan

Busey Creek

Canoe Creek

Cartwright Creek

Cecilia

Central Coast Winter

Cheewat

Chic Chic

Chilkat (river-type)

Christina

Chutine

Clayoquot

Clayoquot

Clements

Coquitlam-Early Summer

Dallain Creek

Deer

Deserted

Dome

Douglas Creek

East Haida Gwaii

East Haida Gwaii (river-type)

East Vancouver Island & Georgia Strait (river-type)

East Vancouver Island-Georgia Strait

East Vancouver Island-Johnstone Strait-Southern Fjords

East Vancouver Island-Nanaimo (Spring x-2)

Ecstall/Lower

Elizabeth

Elsie/Hoy

End Hill Creek

Evinrude Inlet

Fairfax

Fairy

Fannie Cove

Footsore/Hodder

Fraser Canyon Summer

Fraser-Early Summer

Fulmore

Georgia Strait Mainland

Haida Gwaii Winter

Henderson

Hesquiat

Hevenor Inlet

Heydon

Higgins Lagoon

Hobiton

Homathko (Summer x-x)

Homathko-Klinaklini Rivers

Howe Sound-Burrard Inlet

Ida-Bonanza

Jalun

Jansen

Juan de Fuca-Pachena

Kakweiken

Kanim

Kawkawa-Late

Kdelmashan Creek

Kennedy

Kent Inlet Lagoon Creek

Kenzuwash Creeks

Keswar Creek

Kildidt Creek

Kildidt Lagoon Creek

Kimsquit

Kisameet

Kispiox

Kitkiata

Klinaklini (Summer 5-2)

Kluatantan

Kluayaz

Kunsoot River

Kwinageese

Lakelse

Leverson

Lewis Creek

Lillooet

Limestone Creek

Loose

Lower Fraser

Lower Fraser Summer

Lower Fraser Winter

Lower Stikine

Lower Stikine

Lynn Canal

Lynn Canal

Lynn Canal

Mackenzie

Maggie

Marie

Mcdonald Creek

Mcloughlin

Megin

Middle Skeena

Momich-Early Summer

Monckton Inlet Creek

Muchalat

Muriel

NW Vancouver Island (river-type)

Nahwitti

Nahwitti Lowland

Nass Winter

Nitinat

North Barriere-Early Summer

North Coast Summer

North Coast Winter

North Haida Gwaii (odd)

North Haida Gwaii (river-type)

Northern Coastal Streams (river-type)

Northern Transboundary Fjords (river-type)

Northwest Vancouver Island (even)

O'Connell

Oweegee

Park River

Phillips

Pine River

Power

Powles Creek

Price Creek

Quatse

Rivers-Smith Inlets (river-type)

Ryan Creek

Salter

Schoen

Scoular/Kilpatrick

Seton-Summer

Sheneeza Inlet

Ship Point Creek

Shushartie

Sicintine

Skeena Coastal Summers

Skeena Coastal Winters

Skeena Estuary

Skeena River (river-type)

Slamgeesh

Soda Creek

South Atnarko Lakes

South Coast Summer

South Coast Winter

Southern Coastal Streams-Queen Charlotte Strait-Johnstone Strait-Southern Fjords

Southern Fjords (river-type)

Spawning

Spencer Creek

Stannard Creek

Stikine Summer

Stikine Winter

Stikine-Early Timing

Stikine-Late Timing

Suskwa

Taku

Taku Summer

Taku Winter

Taku-Early Timing

Taku-Early Timing

Taku-Late Timing

Taku-Late Timing

Taku-Mid Timing

Taku-Mid Timing

Talamoosa Creek

Transboundary Fjords (even)

Transboundary Fjords (odd)

Transition Summer

Treneman Creek

Tuno Creek East

Tuno Creek West

Tuwartz

Tyler Creek

Tzoonie

Unuk

Unuk

Unuk

Upper Nass (even)

Upper Nass (odd)

Upper Skeena

Upper Skeena

Upper Skeena Headwaters

Vernon

Wale Creek

Wannock

Wannock (Owikeno)

Watt Bay

West Creek

West Haida Gwaii (odd)

West Haida Gwaii (river-type)

West Vancouver Island

West Vancouver Island (even)

West Vancouver Island (odd)

West Vancouver Island (river-type)

West Vancouver Island Winter

Whiting

Whiting

Whiting

Whiting

William-Brink

Woss

Yaaklele Lagoon