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Published byMario Longmire Modified over 9 years ago
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Wild Steelhead Stock S t a t u s BC 2004...
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British Columbia in Perspective 1200 km (720 mi) south to north 500-1000 km (300 – 600 mi) wide 950,000 sq km (367,000 sq mi) 75% mountains; 60% forested; 10% farmland and lakes; <2% rivers 10% farmland and lakes; <2% rivers 7000 km (4200 mi) of coastline
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Population Details ~4.0Million total ~ 60% Vancouver ~16% Vancouver Island ~24 % elsewhere but only 4% in northern half <4% Aboriginal
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B C (Wild) Steelhead Facts About 580 steelhead “rivers” (3 rd order or larger) About 630 stocks (85% WSH, 12% ISSH, 3% CSSH) About 1/3 of rivers along remote mid & N coast (seldom, if ever, fished) About 1/4 of rivers on Vancouver Island
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Guesstimates of Abundance Stock Type Number of Stocks < 500 500 - 1000 > 1000 WSH418206 CSSH402(1) ISSH501111 All5593318
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Abundance (cont’d) Stock Type Abundance Winter Steelhead 225,000 Coastal Summer Steelhead 25,000 Interior Summer Steelhead 90,000 All340,000
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Hatcheries in Perspective
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Number of Streams Stocked with Steelhead Juveniles Originating From Wild Brood Stock (F=fry, S=smolt) Time Island Mainland Thompson Cariboo Skeena All Period F S F S F S F S F S F S Time Island Mainland Thompson Cariboo Skeena All Period F S F S F S F S F S F S < 1975 1 3 2 2 0 0 0 0 0 0 3 5 < 1975 1 3 2 2 0 0 0 0 0 0 3 5 1975–84 11 15 14 8 1 1 2 0 4 1 32 25 1975–84 11 15 14 8 1 1 2 0 4 1 32 25 1985–94 19 17 18 19 1 1 3 0 8 1 49 38 1985–94 19 17 18 19 1 1 3 0 8 1 49 38 1995–01 11 10 6 14 1 0 0 0 0 1 18 25 1995–01 11 10 6 14 1 0 0 0 0 1 18 25 2002 9 9 0? 8 0 0 0 0 0 1 9 18 2002 9 9 0? 8 0 0 0 0 0 1 9 18
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Steelhead Releases 1975 - 2001 Steelhead Releases 1975 - 2001 Period Av # Fry Av # Smolts Period Av # Fry Av # Smolts 1975-79.07M.07M 1975-79.07M.07M 1980-84 1.03M.60M 1980-84 1.03M.60M 1985-89 1.59M.91M 1985-89 1.59M.91M 1990-94.73M.82M 1990-94.73M.82M 1995-99.26M.63M 1995-99.26M.63M 2000-01.09M.38M 2000-01.09M.38M
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Stock Assessment Methods Total Counts Weirs/resistivity counters (Keogh, Deadman, Sustut, Kitwanga) Indices of Abundance Gillnet test fisheries (Fraser, Skeena) Fishwheels (Nass) Snorkel observations (some total counts) Aerial Counts (Chilko) Juvenile sampling
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Nass River Watershed Nass Lake Damdochax Creek Kwinageese River Cranberry River White River Meziadin Lake Bowser Lake Bell-Irving River Kiteen River Grease Harbour Tchitin River New Aiyansh Tseax River Canyon City (Gitwinksihlkw) Greenville (Lakalzap) Ishkeenickh River Kincolith Kincolith River Nass River 50 km N BC
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Fishwheel Locations Kwinageese River Cranberry River White River Meziadin Lake Kiteen River Grease Harbour Tchitin River New Aiyansh Tseax River Canyon City (Gitwinksihlkw) Greenville (Lakalzap) Ishkeenickh River Kincolith Kincolith River Nass River 50 km N
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Nass River Fishwheels 6 wheels operated annually Mainly for stock assessment Late May to late September Now operated as the sole in- season salmon indicator for the Nass
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Nass Steelhead Escapement (1994-2003)
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Tyee Test Fishery Location N 0 6 km Porcher Island Kennedy Island Smith Island Digby Island Kaien Island Chatham Sound Prince Rupert Port Edward Ecstall River Khyex River Skeena River Tyee Test Fishery BC
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Tyee Test Fishing Site SKEENA RIVER Khyex River Highway 16 Port Essignton Lookout Tyee Bank Ecstall River Khyex Bank Tyee Test Fishing Site
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Skeena Test Fishery Index 1956-2003
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Tyee Test Fishery 2003
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Upper Sustut River Watershed Skeena River Birdflat Creek Sustut River Bear Lake Bear River Asitka River Red Creek Johanson Creek Johanson Lake Moosevale Creek Two Lake Creek Sustut Lake Study Area N Scale: Approximately 1:340,000 Weir Location
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Upper Sustut River Weir
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Sustut Weir Counts Estimated K = ~1100
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Albion Test Fishery
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Trends in Chilko
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Deadman Creek Resistivity Counter
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Trends in Deadman
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Trends in Bonaparte
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Trends in Nicola
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Central Coast Index – Bella Coola
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Lower Fraser CSSH Index
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WILD STEELHEAD RETURNS TO THE KEOGH RIVER 1976 to 2003
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The capacity for smolts dropped from 7,000 (>10,000 with nutrient addition) to <2000 recent increases in smolts can be attributed to WRP Keogh River Steelhead Smolt counts, 1977 to 2003
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Smolt-to-adult survival trends 2001 estimate based on partial returns. SAS has dropped from average of 15% to <4% Like wild coho, SAS increased in ‘97 and ‘98, but recently declined based on returns thus far of 2001 smolts
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Steelhead smolt yield and adult returns at the Keogh River, B.C.
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Englishman River WSH Snorkel Counts 1982-2003
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West Coast Van Isle WSH Index
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Mainland Coast WSH Index
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In Summary: The “red zone” is not diminishing in size or severity All the king’s horses and all the king’s men are not putting Humpty together again –Mother nature is a b_ _ _ _! –Fish culture in all it’s forms is not reversing anything –We aren’t fixing the broken habitat and diminished productivity on anywhere near a scale that will make a difference –Those who degraded the habitat are not held accountable Fisheries managers are becoming as rare as steelhead
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(Hopefully not) “The End”
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